WO2007089972A2 - Posterior joint replacement device - Google Patents

Posterior joint replacement device Download PDF

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Publication number
WO2007089972A2
WO2007089972A2 PCT/US2007/060549 US2007060549W WO2007089972A2 WO 2007089972 A2 WO2007089972 A2 WO 2007089972A2 US 2007060549 W US2007060549 W US 2007060549W WO 2007089972 A2 WO2007089972 A2 WO 2007089972A2
Authority
WO
WIPO (PCT)
Prior art keywords
prosthetic device
articular
post
portions
section
Prior art date
Application number
PCT/US2007/060549
Other languages
French (fr)
Other versions
WO2007089972A3 (en
Inventor
Danny H. Braddock Jr.
Marc M. Peterman
Scott D. Hodges
Kidong Yu
Steven C. Humphreys
Original Assignee
Warsaw Orthopedic, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Warsaw Orthopedic, Inc. filed Critical Warsaw Orthopedic, Inc.
Priority to EP07701237A priority Critical patent/EP1978898B1/en
Priority to JP2008553436A priority patent/JP2009525148A/en
Priority to CN200780010039XA priority patent/CN101404957B/en
Priority to AU2007211165A priority patent/AU2007211165B2/en
Priority to AT07701237T priority patent/ATE499080T1/en
Priority to DE602007012659T priority patent/DE602007012659D1/en
Publication of WO2007089972A2 publication Critical patent/WO2007089972A2/en
Publication of WO2007089972A3 publication Critical patent/WO2007089972A3/en

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Classifications

    • AHUMAN NECESSITIES
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    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
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    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00029Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00161Carbon; Graphite
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00161Carbon; Graphite
    • A61F2310/00167Diamond or diamond-like carbon
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00185Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00203Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00185Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00239Ceramics or ceramic-like structures based on metal oxides containing zirconia or zirconium oxide ZrO2
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00592Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00976Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF

Definitions

  • Disc arthroplasty is one way of treating injured, degraded, or diseased spinal discs
  • Some disc mthroplasty treatments include replacing injured discs of the joint with a motion-preserving spi tml disc that allows some articulation or movement of the spinal joint. While the inserted disc may pros ide joint articulation to a patient inserting the spinal disc can be an invasive mid intensive procedure For example, anterior procedures often require displacement of organs, such as the aorta and vena cava, and must be performed with great care. Puither, because scar tissue may grow about the surgical she, any required second treatment can be more difficult and may introduce additional distress, to the patient.
  • the posterior joint replacement device disclosed herein overcomes one or more problems in the prior art.
  • this disclosure ⁇ s directed to a prosthetic device for posterior placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae.
  • 1 he device may include aa upper articular portion con ⁇ iguied to be at least partially disposed in the Intervertebral space. It may also include a lower articular portion configured to be at least partially disposed in the intervertebral space below the upper articular portion. 1 he upper and lower articular portions may be configured to provide articulating motion to the upper and lower vertebrae.
  • the upper arid lower articular portions each may include a posterior section configured to bo disposed in a location posterior of the intervertebral space.
  • the posterior section of one of the upper and lower articular portions may include a post, and the posterior section of the other of the upper and lower articular portions may include a receiving portion configured to interact with ihe post during articulation.
  • at least one connecting hole may be associated with at least one of the upper and lower articular portions,
  • the at least one of the « ⁇ per and lower articular portions may define & longitudinal ce ⁇ terline and the at least one connecting hole may be aligned along the eenterllne.
  • this disclosure is directed toward a joint replacement device for placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper a «d lower vertebrae.
  • the joint replacement device may include a first joint replacement device and a second joint replacement device.
  • the first and the second joint replacement devices each may include an upper articular device configured to be at least partially disposed in the intervertebral space and a lower articular device configured to be at least partially disposed in the intervertebral space.
  • the upper and lower articular device may be configured to provide articulated motion to the upper and lower vertebrae.
  • the upper and lower articular devices each may have a centerlme and a screw port aligned along the centerline.
  • this disclosure is directed to a joint replacement device for placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae.
  • the joint replacement device tnay include a .first joint replacement device configured to be implanted at least partially within the intervertebral disc space aad a second joint replacement device configured to be implanted at least partially within the intervertebral disc space adjacent the first joint replacement device.
  • the first and the second joint replacement devices may be substantially identical so that each can be implanted on either of a right side or the left side of the intervertebral disc space.
  • the joint replacement device disclosed herein may include one or more features disclosed in the following prior patent applications, incorporated herein in their entirety by reference:
  • Fig. 1 is a pictorial representation of a lateral view of a portion, of a vertebral column.
  • Fig. 2 is a pictorial representation of a lateral view of a pair of adjacent vertebral foodies defining an intervertebral space.
  • Fig. 3 is a pictorial representation of an intervertebral prosthetic device disposed 0 between adjacent vertebral bodies.
  • Fig. 4 is a pictorial representation of a. top view of an intervertebral prosthetic device on a lower vertebral body.
  • Fig. 5 is a pictorial representation showing itmer features of an intervertebral prosthetic device between vertebral bodies.
  • 5 Figs. 6 " , 7, nn ⁇ Sa-Sc are pictorial representations of an intervertebral prosthetic device.
  • Fig. 9 is a pictorial representation of an. intervertebral prosthetic device including a biasing member.
  • Figs. 10-12 are pictorial representations of an intervertebral prosthetic device 0 according to another aspect.
  • Figs. 13-15 are pictorial representstions of the intervertebral prosthetic device of Figs. 10-12 disposed between vertebral bodies.
  • Fig, 16 is a pictorial representation of an intervertebral prosthetic device according to another aspect of &e device slsown in Figs. .10-12.
  • the present invention relates generally to vertebral reconstructive devices and, more particularly, to an intervertebral prosthetic device for implantation.
  • an intervertebral prosthetic device for implantation.
  • Fig. I shows a lateral view of a portion of a spinal column 10, illustrating a group of adjacent upper and lower vertebrae Vl, V2, V3, V4 separated by natural intervertebral discs Dl, Dl, D3.
  • the illustration of four vertebrae is ofcly intended as an example. Another example would be a sacrum and one vertebrae.
  • two of the vertebrae will be discussed with reference to Fig. 2.
  • the two vertebrae form a spinal segment .12 including an upper vertebrae 14 and a lower vertebrae 16,
  • Some types of disc arthroplasty require that some or all of the natural cfisc that would have been positioned between the two vertebrae 14, 16 be removed, via a discectomy or a similar surgical procedure.
  • FIG. 2 generally depicts the vertebral joint 12 as a . lumbar vertebral joint, it. is understood that, the devices, systems, and methods of this disclosure may also be applied to all regions of the vertebral column, including the cervical and thoracic regions.
  • Some conventional spinal prosthetic devices are installed using an anterior procedure, requiring a physician to access the spmal column using distressing and sometimes traumatic procedures. Once a prosthetic is installed using sm anterior procedure, scar tissue may build on sensitive vessels, ⁇ f a second procedure is required, a physician may be required to remove the scar tissue to access the previously placed prosthetic.
  • the intervertebral prosthetic device disclosed herein may be advantageous over prior devices because it- may be installed using a posterior procedure. Accordingly, a physician, need not access and disturb the critical vessels that reside at the anterior side of the spinal column. Further, if a second procedure becomes necessary, the physician lias easy access to the previously placed prosthetic without removing scar tissue off of sensitive vessels. Accordingly, the procedure may be simplified and may cause less distress to the patient.
  • Posterior implantation procedures often include removal of facet joints or processes. Because the joints and processes operate as connection locations for ligaments and muscles, their removal may limit the ability of the joint to control the degree or range of joint articulation.
  • Fig. 3 shows a side view of the vertebrae H 5 16 with an intervertebral prosthetic disc 18 in the disc space S.
  • the disc i 8 allows the vertebra 14 to articulate relative to the vertebra 16 to provide movement to the spinal joint. Sized to fit the disc space height in a manner similar to a natural intervertebral disc, such as any of discs D ⁇ -D4, the prosthetic disc 18 provides support and stabilisation to the vertebrae.
  • Figs. 4-8 show a number of views of at least a portion of the prosthetic disc 18, Fig. 4 shows a top view of the prosthetic disc 18 in place on the vertebra 16, and Fig. 5 shows a view of the prosthetic disc 18 in place on the vertebrae 14, ⁇ 6 y but with the vertebrae separated to display inner features of the prosthetic disc 18.
  • the prosthetic disc l ⁇ may include a pair of prosthetic devices including a left prosthetic device 20 and a. right prosthetic device 21 that cooperate together to take the place of fee natural disc. While it is recognized that the prosthetic disc 18 may include more than one prosthetic device, the following description is primarily directed to only the left prosthetic device 20. It should be readily apparent that the right prosthetic device 21 of the prosthetic disc 18 may be substantially similar in structure and function to the left prosthetic device 20 and therefore will not be described in further detail.
  • the prosthetic device 20 includes an upper articular 5 portion 22 and a lower articular portion 24.
  • the upper articular portion 22 includes an interdisca! section 26, a posterior section 28, and a bridge 30 extending between the interdj ⁇ ca! and posterior sections 26, 28.
  • the lower articular portion 24 includes an interdiscal section 32, a posterior section 34, and a bridge 36 extending between the interdiscal and posterior sections 32, 34.
  • the upper and lower articular portions 22, 24 may be formed of any suitable biocompatible material including metals such as cobalt-chrornium alloys, titanium alloys, nickel titanium alloys, and/or staitiiess steel alloys. Ceramic materials such as aluminum oxide or alumina, zirconium oxide or zirconia. compact of particulate diamond, and/or pyrolytic carbon .may also be suitable. Polymer materials may also be used, including any
  • PAE ⁇ Q polyaryletlierketone
  • PEEK polyetheretherketone
  • PEKK polyettierketoneketone
  • polysulfone polyetherir ⁇ ide
  • poiy ⁇ m ⁇ de ultra-high molecular weight polyethylene
  • UHMWPE ultra-high molecular weight polyethylene
  • the various sections comprising the ⁇ pper articular portion 22 and the lower articular portion 24 may be formed of different materials thus permitting metal on. metal, 0 metal on ceramic, metal on polymer, ceramic on ceramic, ceramic on polymer, or polymer on. polymer constructions.
  • each of the upper and lower articular portions 22, 24 are integrally formed or molded of a single piece of material.
  • one or more of the interdiscai, posterior, and bridge sections of either of the 5 upper or lower articular portions 22, 24 may be formed separately and attached to one or more of the other sections. Attachments in these embodiments may be accomplished using any fastening mechanism known in the art including, for example, a threaded connection, a bolted connection, or a latched connection, In those embodiments, the interdiscal, posterior, and bridge sections also may be formed of different materials.
  • the irsterdiscal section 26 of the upper articular portion 22 may include a bone contacting surface 3S and sm inner surface 44 opposite the bone contacting surface 38.
  • a first articular surface 42 inay form a part of the inner surface 44.
  • the first articular surface 42 AS a recess.
  • the lower articular portion 24 may include a bone contacting surface 40 opposite an inner surface 48, with & second articular surface 46 forming a part of the inner surface 4S and being configured to mate with the first articular surface 42.
  • the second articular surface 46 is a protrusion.
  • first and second articular surfaces 42, 46 may form an articulating joint that allows toe upper aod lower articular portions 22, 24 to articulate relative to each other. This articulation, in turn, may allow articulating movement of the upper vertebra 14 relative to the lower vertebra 16, and in some embodiments,, may allow movement similar to that provided by a natural spinal disc.
  • the second articular surface 46 is a partial sphere that may rotate or translate within the first articular surface 42, forming a loosely constrained ball and socket style joint.
  • first and second articular surfaces 42, 46 may beany shape or design that allows one of the upper and lower articular portions 22 S 24 to move relative to the other of the upper ami lower articular portions 22, 24.
  • first and second articular surfaces 42, 46 may include a trough and .recess, a ball and saucer, or other shaped features.
  • the interdiscal section 26 may be situated along an inferior surface of the upper vertebra 14 and the interdiscal section 32 may be situated above a superior surface of the lower vertebra 16.
  • the two isterdiscal sections 26, 32 are not limited to such an arrangement, and may be oriented in different positions and/or shaped differently than what is illustrated herein.
  • the bone contacting surfaces 38, 40 of the upper and lower articular portions 22, 24 may include features or coatings which enhance the fixation of the implanted prosthetic- device 20.
  • the surfaces 38, 40 may be roughened such as by chemical etching, bead-blasting, sanding, grinding, seriating, and/or diamond-cutting, AU or a portion of the bone contacting surfaces 3S, 40 of the upper and lower articular portions 22, 24 may also be coated with a biocompatible and osteoinductive material such as hydroxyapatite (HA), tricaicium phosphate (TCP), and/or calcium carbonate to promote bone in growth and fixation.
  • HA hydroxyapatite
  • TCP tricaicium phosphate
  • osteoinductive coatings such as proteins from transforming growth, factor (TGF) beta superfamily, or bone-morphogenic proteins, such as BM1?2 or BMP7, may be used.
  • TGF transforming growth, factor
  • BMP7 bone-morphogenic proteins
  • Other suitable features may .include spikes, ridges, and/or other surface textures.
  • optional upper and lower bone connectors 50, 52 are formed on the bone contacting surfaces 38.40, respectively. These bone connectors 50, 52 extend toward lhe upper and lower vertebrae 14, 16 In a manner to help secure the upper and lower articular portions 22, 24 in place.
  • the bone connectors 50, 52 are keels configured to extend into notches or grooves formed into the vertebral endpiates.
  • the bone connectors 50., 52 may be of any length, either shorter or longer than that shown, and in addition, may have some oilier orientation or features other than that shown
  • the bone eoa&eotors are a series of ridges, protrusions, or other surface features that help fix the prosthetic device 20 in place.
  • the upper articular portion 22 also includes additional features for affixing to the vertebrae 14.
  • the upper articular portion 22 includes a connecting aperture 54 (best seen in Figs. 6 and 7) configured to receive a bone fastener 56 (shown in Figs. 3 and 4), such as a screw.
  • the connecting aperture 54 may be disposed adjacent a rear of the interdiscal section 26 so that the bone fastener 56 may be driven through the aperture 54 into the rear of the vertebral, body of the vertebra 14.
  • the connecting aperture 34 may be disposed elsewhere so long as the bone fastener 56 in the aperture 54 may help hold the prosthetic device 20 in place, En the embodiment shown, the lower articular portion.24 does not include a connecting aperture.
  • one or more connecting apertures may be included,
  • the bridge sections 30, 36 extend rearward from the interdiscai sections 26, 32 respectively. In the embodiment shown, the bridge sections 30, 36 extend substantially along a longitudinal eenteriine 58 (Fig. 7) of the prosthetic device 20.
  • the bridge sections do not align with a longitudinal center! ine of the mierdiscal sections, but may be curved or angled to depart away from the longitudinal centerHne.
  • the posterior sections 28, 34 may be disposed at the end of the bridge sections 3O 5 36 and may be configured to fit adjacent to the processes of the vertebrae 14, 16.
  • the posterior section 34 of the lower articular portion 24 may include a post 60 having a bridge end 62 and a tail ersd 64.
  • the post.60 may be configured to extend generally ai a direction along the spinal column.
  • the bridge end 62 of the post 60 may connect to the bridge section 36.
  • the bridge end 62 of the post 60 Is formed by a ber*d in the bridge section 36, and includes a depression 65 that dips below the level of the bridge section 36.
  • the post 60 may extend upwardly so that the tail end 64 of the post 60 may he disposed at a location higher than die bridge section 36.
  • the tail end 64 may include a motion stop 66 configured to limit the range of articulation between the upper and lower articular portions 22, 24.
  • the motion stop 6 ⁇ is a bend in the post 60 having a length that is configured to work together with the upper articular portion 22 to limit the available range of articular rotation of the upper artd lower articular portions 22.. 24.
  • the post 60 may include a straight segment extending between the bridge end 62 and the tail end 64.
  • the post 60 may include a curve concentric with the curvature of the protruding articular surface 46.
  • the posterior section 2S of the upper articular portion 22 Includes a tab 68 having an aperture 70 formed therein that is configured to receive the post 60 of the lower articular portion 24.
  • the aperture 70 is a rectangular shaped hole having a width w (Fig. 7) that is less than the length of the tail ersd 64.
  • A. portion of the tab 68 forms a motion stop 69 that is configured to cooperate with the motion stop 66 on the post 60. Accordingly, when the upper and lower articular portions 22, 24 are assembled as shown in Fig. 6, the motion stop 66 and the motion stop 69 cooperate to limit the range of articulation of the prosthetic device 20.
  • the aperture 70 is configured so that when the articulating surfaces 42, 46 are mated, the post 60 extends through the aperture 70 in a manner that articulation may still freely occur within the range.
  • the upper and lower articular portions 22, 24 may be configured for assembly outside of the disc space S of Fig. 2.
  • trie upper articular portion.22 may be placed on the lower articular portion 24 when the upper and lower articular portions 22, 24 are outside the disc s ⁇ ac*s S.
  • the upper and lower articular portions 22, 24 may be difficult to disassemble with ⁇ n tbe disc space S. Therefore, the chance of the upper and lower articular portions 22, 24 becoming misaligned after implantation. Is virtually eliminated.
  • the post 60 and aperture 70 reduce axial rotation of one of the upper and lower articular portions 22, 24 about the other of the upper and lower articular portions 22, 24.
  • the upper and lower articular portion* 22, 24 are boirod. together so that axial rotation is limited to by the size of the aperture 70 and the post 60.
  • Figs. 4 and ? axe top views of the prosthetic device 20. As apparent in these views, the post 60 and aperture 70, while still aligned along the longitudinal cen.terli.ne 5& are also rotated. Accordingly, the tail end 64 is turned to point in a direction, offset from the longitudinal center ⁇ ne 58. Likewise, the rectangular or square aperture 70 is angled to match the angle of the tail end 6 ' 4.
  • the angle is formed in the posterior section 34 of the lower articular portion 24, and not in the bridge section 36 of the lower articular portion 24. As seen best in Fig. 4, this angle may assist irt fitting the prosthetic device 20 within the intervertebral space S by allowing the tail end to extend substantially rearward although the bridge sections and intervertebral disc sections extend into the intervertebral space S at an angle.
  • the right prosthetic device 21 includes a similar angied posterior end, but is angled rn a direction opposite that of the left prosthetic device 20.
  • the posterior sections are not angled at all, while in others the bridge sections are angled or turned.
  • Figs. Sa-Sc show one example of an articulation range of the articulating prosthetic device 20.
  • Fig. 8a shows the prosthetic device 20 articulated to a first limit
  • Fig. Sb shows the prosthetic device 20 articulated to a central position
  • aad Fig. 8c shows the prosthetic device 20 articulated to a second, limit.
  • the motion stop 69 on the posterior section 34 of the upper articular portion 22 is in contact with the motion, stop 66 of the lower articular portion 24, Accordingly, a flexion/extension and/or torsional articulation range of the prosthetic device 20 is limited to the amount allowed by the motion stops 66 and 69.
  • Fig. 8a shows the prosthetic device 20 articulated to a first limit
  • Fig. Sb shows the prosthetic device 20 articulated to a central position
  • aad Fig. 8c shows the prosthetic device 20 articulated to a second, limit.
  • Fig. Sc shows the prosthetic device 20 articulated to the second limit.
  • the bridge sections 30 > 36 act as motion stops to limit, the articulation between the upper and lower articular portions 22, 24.
  • the total range of motion, represented by Fig, 8a to 8c may be about 45 degrees. However, the range of motion could be more or less than this, as controlled by the .motion slops.
  • Fig. 9 shows an alternate embodiment of an articulating device, ⁇ n Fig, 9, a biasing member 72 is disposed about the post 60,
  • a biasing member 72 is disposed about the post 60.
  • the biasing member 72 in FIg. 9 may bias the prosthetic device 20 to a desired position, such as a neutral position. Accordingly, although some or all the muscles and ligaments that control the articulation of a healthy spinal disc are removed, the biasing member 72 may provide a stabilizing force that controls the articular movement.
  • the biasing member 72 is one or more springs disposed about the post 60 both above and below the posterior section 28 of the upper articular portion 22. This may provide dampening in both flexion and tension.
  • die biasing member is a elastomeric member.
  • the biasing member may be, for example, a friction element, an extendable band, or a bumper, such as a urethane bumper. Ia some embodiments, rather than being disposed both, above and below the posterior section 28 of the upper articular portion 22, the biasing member 72 is disposed only above or only below the posterior section 2S of the upper articular portion 22. ⁇ n other embodiments, the biasing member is disposed elsewhere, such as on the bridge sections 30, 36. In yet other embodiments, the biasing member may provide some torsional resistance to the articular device.
  • the articular prosthetic device 100 may have many features similar to the articular prosthetic device 20 described above, A description of these features will not be repeated here in detail.
  • the articular prosthetic device 100 includes sn upper articular portion 102 and a lower articular portion 104, each having an interdiscaf section 106, 108. respectively.
  • the interdiscal sections 106. .!OS define a longitudinal cevrterlin ⁇ 109.
  • a first connecting aperture 110 on the upper articular portion 102 as configured to allow introduction of a hone fastener 112, such as a screw, in a direction that is substantially aligned with the longitudinal centeriine 109 (Fig, 12) of the articular prosthetic device 100. so that the fastener 112 and the longitudinal cencerime 109 may lie substantially within the same plane.
  • a second connecting aperture 1 14 on the lower articular portion 104 is configured to allow introduction of a bone fastener 116 in a direction that is substantially aligned with the longitudinal ceateri ⁇ ae 109 of the articular prosthetic device 100 so that the fastener 116 and the longitudinal centerime 109 may lie substantially within the same plane.
  • any screws are driven into bone at an angle offset from the longitudinal eenterlme.
  • the device may be displaced and may move from its initial, set position. Displacement often occurs in the direction of the screw. Accordingly, if the direction of the screw is offset from the longitudinal centeriine of the device, thea when driven into the bone, the screw often displaces the device in. a direction offset Horn the longitudinal centeriine. This movement can create alignment discrepancies between the top and bottom articulating portions.
  • the articular prosthetic device I 00 is configured so that both the ⁇ rst and second connecting apertures 11.0, 1 14 are configured to align the respective fasteners 112, 116 so that the longitudinal centeriine 109 and the fasteners 1 12. 116 lie substantial! ⁇ ? within the same plane. Accordingly, when the fasteners 112, 116 draw the prosthetic device 100 tight against the bone, any movement or displacement- of the prosthetic device 100 from its position is in the direction of the longitudinal ee&terUne. Accordingly, the prosthetic device 100 may be better aligned and may sit closer to the actual desired location.
  • the articular prosthetic device 100 also is designed to be versatile and fit in either a right or left side of the vertebral space S. Accordingly, a physician need not determine whether the prosthetic device 100 is a left or a right device. This simplifies the surgical procedure and reduces chance of error. Further, a single prosthetic device usable for both the right and left sides may reduce and simplify manufacturing costs because only one design is required, rather than two. It should be noted, however, that the disclosed features may be included on symmetric devices, such as devices designed for use in either « left or tight position, or on asymmetric devices, such as devices designed for use in one of a left and a right position.
  • the prosthetic device 100 of Figs. 10-15 includes a posterior section U 8 of the lower articular portion 104 having an upwardly extending post 120,
  • the post 120 is disposed, along the centerline 109 and includes a tnotion stop 122 that cooperates with a posterior section 124 of the upper articular portioa 102 to limit the range of articulation.
  • the post 120 includes an aperture 126 extending therethrough, that provides access to the first connecting aperture ⁇ " 10 in the upper articular portion 102.
  • the second connecting aperture 114 is disposed Ln a lower portion of the post 120 and therefore can be easily accessed from the posterior side.
  • the posterior section 124 of the upper articular portion 102 includes a first extending ami 128 and a second extending arm 130.
  • the arms 12S 1 130 extend around the post 120 so that the post is constrained from both lateral movement and from displacement along the centerline 109.
  • Adjacent the post ⁇ 20, the arms 12-8, 130 include motion stops 132 configured to contact the motion stop 122 on the post 120.
  • the amis 128, 130 of the prosthetic device 100 do not connect to form a closed aperture through which the post extends. Instead, the arms 132 with the motion stops 132 do not connect, leaving a centrally disposed gap 134.
  • the second connecting aperture i 14 may be formed in the lower articular portion 104, and may be formed at the first mr ⁇ of the post 120. Accordingly, the first and second connecting apertures 110, 114 are not horizontally aligned, but are horizontally offset.
  • the upper connecting aperture ⁇ 10 is disposed so that the fastener 112 enters the rear of the anterior arch of the vertebra 14.
  • the lower connecting aperture i 14 is disposed so that the fastener 116 enters the pedicle and passes into the anterior arch of the lower vertebra 1.6.
  • the connecting apertures 110. .114 may horizontally aligned, and additionally, in other embodiments, the connecting aperture 114 may be disposed at any location adjacent to or between the post 120 and the articular portions.
  • an artificial intervertebral joint 100' in Fig. 16.
  • the artificial intervertebral joint. 100 may be installed between the vertebrae 14, 16 as wHl be described below, Although Installation will be described with respect to the left prosthetic device 2O 5 . it is understood that the right prosthetic device 21 may be installed in a similar .manner.
  • the prosthetic device 100 also may be installed in a similar manner.
  • the artificial intervertebral prosthetic device 20 may be implanted into a body using a posterior transforaminai approach similar to the known transforammal lumbar interbody fusion (TLII! 1' ) or posterior lumbar interbody fusion (IPLiF) procedures.
  • PLIF approaches are generally more medial and rely on more retraction of the traversing root and dura to access the vertebral interspace.
  • TOP approaches are typically more oblique, requiring less retraction, of the exiting root, and less epidural bleeding with less refraction of the traversing structures.
  • Et is also possible to access the interspace using a far lateral approach. Ia some instances it is possible to access the interspace via the far lateral without resecting the facets.
  • an incision such as a midline incision, may be made hi the patient's back and some or all of the affected disc and surrounding tissue may be removed via the foramma.
  • the superior endplate surface of the vertebra 14 may be milled, rasped, or otherwise resected to match the profile of the bone contacting surface 38 of the upper articular surface 22, to normalize stress distributions on the superior ersdplate surface of the vertebra 14, and/or to provide initial fixation prior to bone ingrowth.
  • the preparation of the endplate of vertebra 14 may result in a flattened surface or in surface contours such as pockets, grooves, or other contours that may match corresponding features on the bone contacting surface 38.
  • the inferior endplate of the vertebra 16 may be similarly prepared to receive the lower articular portion 24 to the extent allowed by the exiting nerve root and the dorsal root, ganglia. In some procedures. the natural facet joints of vertebrae 14, 16 may be trimmed or removed to make room for the posterior component 120.
  • the upper and lower articular portions 22, 24 of the prosthetic device 20 may then be oriented so Hurt the post 60 is extending through the aperture 70. Or with reference to the prosthetic device 100, so that the post 120 is extending between the two arms 128. 130.
  • the upper and lower articular portions then may be simultaneously introduced into the transforar ⁇ inal openings and are placed in the appropriate intervertebral disc space between the upper and lower vertebrae.
  • the upper and lower articular portions may be introduced through a cannula. If the pieces are modular, the prosthetic device may be implanted pieces at a time, with posterior sections of the upper and lower articular portions introduced last.
  • the bridge sections 30, 36 may extend in a posterior direction from the interd ⁇ scal sections 26, 3'2 and in a posterior direction from the intervertebral disc space S.
  • the posterior sections 28, 34 are positioned in a posterior direction of the intervertebral disc space to replace or supplement the function of the natural facet joints.
  • the fastener 56 may be inserted through the connecting aperture 58 into the upper vertebra. 14.
  • the fastener 112 may he introduced through the gap 134 and the aperture 126 in the posterior sections, through the aperture 110, and into the upper vertebra 14.
  • the fastener 136 may be inserted through the connecting aperture 11.4 in. the posterior section 118 of the lower articular portion 1.04 and into adjacent bone such as the pedicle of the vertebra 16.
  • the hall and socket type joint created fay the articular surfaces 42, 46 may be relatively stable and self-centering. Both the anterior joint and the posterior connection (formed by the post and aperture connection) allow the prosthetic device 20 to resist shear forces, particularly anterior-posterior forces. Further, rotational motion about a longitudinal centeriine defined by the cylindrical bodies 14, 16 may be limited both by the constraint in the post and aperture connection and by the combined constraint provided by the two prosthetic devices 20, 21.
  • the robust and forgiving structure of the anterior joint and the post and aperture connection permits misalignment and slight inaccuracy in the placement of the prosthetic devices 20, 21. For example, the ball and socket structure of the articular joint tolerates a certain amount of misalignment between the components.
  • the Interaction of the post and aperture may also accommodate parallel misalignment and/or anterior-posterior misalignment between the prosthetic devices 20, 21.
  • a single unilateral prosthetic device may be implanted, while in others, two devices, forming a right: and a left device may be implanted.
  • a three-piece articuiati ⁇ g disc may be used instead of only upper and lower articulating portions that provide articulation.
  • a third articulating component may be disposed between the upper and lower articulating portions to provide articulation.

Abstract

A prosthetic device (20) for posterior placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae may include an upper articular portion (22) configured to be at least partially disposed in the intervertebral space and a lower articular portion (24) configured to be at least partially disposed in the Intervertebral space below the tipper articular portion, the upper and lower articular portions being configured to provide articulating motion to the upper and lower vertebrae. The upper and lower articular portions each may include a posterior section (28) configured to be disposed in a location posterior of the intervertebral space. The posterior section of one of the upper and lower articular portions may include a post (SO), and the posterior section of the other of the upper and lower articular portions may include a receiving portion (70) configured to interact with the post during articulation.

Description

POSTERIOR JOINT REPLACEMENT BE VICE
Disc arthroplasty is one way of treating injured, degraded, or diseased spinal discs
Some disc mthroplasty treatments include replacing injured discs of the joint with a motion-preserving spi tml disc that allows some articulation or movement of the spinal joint. While the inserted disc may pros ide joint articulation to a patient inserting the spinal disc can be an invasive mid intensive procedure For example, anterior procedures often require displacement of organs, such as the aorta and vena cava, and must be performed with great care. Puither, because scar tissue may grow about the surgical she, any required second treatment can be more difficult and may introduce additional distress, to the patient.
What is needed is a prosthetic device for insertion into an intervertebral space that may be installed from a posterior position The posterior joint replacement device disclosed herein overcomes one or more problems in the prior art.
SUMMARY OF THB INVENTION
Ia one exemplary aspect, this disclosure ϊs directed to a prosthetic device for posterior placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae. 1 he device may include aa upper articular portion conϊiguied to be at least partially disposed in the Intervertebral space. It may also include a lower articular portion configured to be at least partially disposed in the intervertebral space below the upper articular portion. 1 he upper and lower articular portions may be configured to provide articulating motion to the upper and lower vertebrae. fa one aspect, the upper arid lower articular portions each may include a posterior section configured to bo disposed in a location posterior of the intervertebral space. The posterior section of one of the upper and lower articular portions may include a post, and the posterior section of the other of the upper and lower articular portions may include a receiving portion configured to interact with ihe post during articulation. Irs another aspect, at least one connecting hole may be associated with at least one of the upper and lower articular portions, The at least one of the «ρper and lower articular portions may define & longitudinal ceπterline and the at least one connecting hole may be aligned along the eenterllne. In another exemplary aspect, this disclosure is directed toward a joint replacement device for placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper a«d lower vertebrae. The joint replacement device may include a first joint replacement device and a second joint replacement device. The first and the second joint replacement devices each may include an upper articular device configured to be at least partially disposed in the intervertebral space and a lower articular device configured to be at least partially disposed in the intervertebral space. The upper and lower articular device may be configured to provide articulated motion to the upper and lower vertebrae. The upper and lower articular devices each may have a centerlme and a screw port aligned along the centerline. In yet another exemplary aspect, this disclosure is directed to a joint replacement device for placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae. The joint replacement device tnay include a .first joint replacement device configured to be implanted at least partially within the intervertebral disc space aad a second joint replacement device configured to be implanted at least partially within the intervertebral disc space adjacent the first joint replacement device. The first and the second joint replacement devices may be substantially identical so that each can be implanted on either of a right side or the left side of the intervertebral disc space. In some exemplary aspects, the joint replacement device disclosed herein may include one or more features disclosed in the following prior patent applications, incorporated herein in their entirety by reference:
U.S. Utility Patent Application Serial No. 11/031 „602, filed on January 7. 2005 and entitled "Spinal Arthroplasty Device and Method;"
U.S. Utility Patent Application Serial No. 11/031,603, filed on January 7, 2005 and entitled "Dual Articulating Spinal Device and Method;" U.S. Utility Patent Application Serial No. 11/031 J80, filed on January 7, 2005 ami entitled "Split Spinal Device and Method;"
U.S. Utility Patent Application Serial No. 11/031,904, filed on Jaαuary 7, 2005 and entitled "Interconnected Spinal Device
Figure imgf000004_0001
Method;**
5 U.S. Utility Patent Application Serial No. 11/031,700, filed on January 7, 2005 and entitled "Support Structure Device and Method;"
U.S. Utility Patent Application Serial No. 11/031,7S3, filed on January 7, 2005 and entitled "Mobile Bearing Spinal Device and Method;"
US, Utility Patent Application Serial No. 11/031,781, filed on January 7,. 2005 and Ϊ0 entitled "Centrally Articulating Spinal Device and Method;" and
U.S. Utility Patent Application Serial No. J 1/031,903, filed on January 7, 2005 and entitled "Posterior Spinal Device and Method."
BRIEF DESCRIPTION OF THE DRAWINGS
1.5 Fig. 1 is a pictorial representation of a lateral view of a portion, of a vertebral column.
Fig. 2 is a pictorial representation of a lateral view of a pair of adjacent vertebral foodies defining an intervertebral space.
Fig. 3 is a pictorial representation of an intervertebral prosthetic device disposed 0 between adjacent vertebral bodies.
Fig. 4 is a pictorial representation of a. top view of an intervertebral prosthetic device on a lower vertebral body.
Fig. 5 is a pictorial representation showing itmer features of an intervertebral prosthetic device between vertebral bodies. 5 Figs. 6", 7, nnά Sa-Sc are pictorial representations of an intervertebral prosthetic device.
Fig. 9 is a pictorial representation of an. intervertebral prosthetic device including a biasing member.
Figs. 10-12 are pictorial representations of an intervertebral prosthetic device 0 according to another aspect. Figs. 13-15 are pictorial representstions of the intervertebral prosthetic device of Figs. 10-12 disposed between vertebral bodies.
Fig, 16 is a pictorial representation of an intervertebral prosthetic device according to another aspect of &e device slsown in Figs. .10-12.
DETAILED DESCRIPTION
The present invention relates generally to vertebral reconstructive devices and, more particularly, to an intervertebral prosthetic device for implantation. For the purposes of promoting an understanding of the principles of the invention, reference will now be made to embodiments or examples illustrated in the drawings and specific language will be usaά to describe the same, ϊl will nevertheless be understood that, no i imitation of the scope of the invention is thereby intended. Any alterations and further modifications in the described embodiments, and any further applications of the principles of the invention as described herein are contemplated as would normally occur to one skilled in the art to which the invention relates.
Fig. I shows a lateral view of a portion of a spinal column 10, illustrating a group of adjacent upper and lower vertebrae Vl, V2, V3, V4 separated by natural intervertebral discs Dl, Dl, D3. The illustration of four vertebrae is ofcly intended as an example. Another example would be a sacrum and one vertebrae. For the sake of further example, two of the vertebrae will be discussed with reference to Fig. 2. The two vertebrae form a spinal segment .12 including an upper vertebrae 14 and a lower vertebrae 16, Some types of disc arthroplasty require that some or all of the natural cfisc that would have been positioned between the two vertebrae 14, 16 be removed, via a discectomy or a similar surgical procedure. Removal of the diseased or degenerated disc results i« the formation of an intervertebral space S between the upper and lower vertebrae 14, 16. Although the illustration of Fig. 2 generally depicts the vertebral joint 12 as a . lumbar vertebral joint, it. is understood that, the devices, systems, and methods of this disclosure may also be applied to all regions of the vertebral column, including the cervical and thoracic regions. Some conventional spinal prosthetic devices are installed using an anterior procedure, requiring a physician to access the spmal column using distressing and sometimes traumatic procedures. Once a prosthetic is installed using sm anterior procedure, scar tissue may build on sensitive vessels, ϊf a second procedure is required, a physician may be required to remove the scar tissue to access the previously placed prosthetic. This sensitive procedure can cause additional distress to the patient. The intervertebral prosthetic device disclosed herein may be advantageous over prior devices because it- may be installed using a posterior procedure. Accordingly, a physician, need not access and disturb the critical vessels that reside at the anterior side of the spinal column. Further, if a second procedure becomes necessary, the physician lias easy access to the previously placed prosthetic without removing scar tissue off of sensitive vessels. Accordingly, the procedure may be simplified and may cause less distress to the patient. Posterior implantation procedures often include removal of facet joints or processes. Because the joints and processes operate as connection locations for ligaments and muscles, their removal may limit the ability of the joint to control the degree or range of joint articulation. Accordingly, conventional prosthetic devices implanted through a posterior procedure provide articulations but it may be largely uncontrolled. With the removal of the muscles and ligaments, the repaired joint may become floppy. The intervertebral prosthetic devices disclosed herein limit, the range of articulation, thereby providing more stability and more control to the spinal column.
Fig. 3 shows a side view of the vertebrae H5 16 with an intervertebral prosthetic disc 18 in the disc space S. The disc i 8 allows the vertebra 14 to articulate relative to the vertebra 16 to provide movement to the spinal joint. Sized to fit the disc space height in a manner similar to a natural intervertebral disc, such as any of discs DΪ-D4, the prosthetic disc 18 provides support and stabilisation to the vertebrae.
Figs. 4-8 show a number of views of at least a portion of the prosthetic disc 18, Fig. 4 shows a top view of the prosthetic disc 18 in place on the vertebra 16, and Fig. 5 shows a view of the prosthetic disc 18 in place on the vertebrae 14, \6y but with the vertebrae separated to display inner features of the prosthetic disc 18. With reference to Fig. 4, the prosthetic disc lδ may include a pair of prosthetic devices including a left prosthetic device 20 and a. right prosthetic device 21 that cooperate together to take the place of fee natural disc. While it is recognized that the prosthetic disc 18 may include more than one prosthetic device, the following description is primarily directed to only the left prosthetic device 20. It should be readily apparent that the right prosthetic device 21 of the prosthetic disc 18 may be substantially similar in structure and function to the left prosthetic device 20 and therefore will not be described in further detail.
With reference to Fig. 4-8, the prosthetic device 20 includes an upper articular 5 portion 22 and a lower articular portion 24. The upper articular portion 22 includes an interdisca! section 26, a posterior section 28, and a bridge 30 extending between the interdjδca! and posterior sections 26, 28. Similarly, the lower articular portion 24 includes an interdiscal section 32, a posterior section 34, and a bridge 36 extending between the interdiscal and posterior sections 32, 34.
IQ The upper and lower articular portions 22, 24 may be formed of any suitable biocompatible material including metals such as cobalt-chrornium alloys, titanium alloys, nickel titanium alloys, and/or staitiiess steel alloys. Ceramic materials such as aluminum oxide or alumina, zirconium oxide or zirconia. compact of particulate diamond, and/or pyrolytic carbon .may also be suitable. Polymer materials may also be used, including any
1.5 member of the polyaryletlierketone (PAEϋQ family such as polyetheretherketone (PEEK), carbon-reinforced !PEEK5 or polyettierketoneketone (PEKK); polysulfone; polyetherirøide; poiyϊmϊde; ultra-high molecular weight polyethylene (UHMWPE); and/or cross-linked UHMWPE. The various sections comprising the υpper articular portion 22 and the lower articular portion 24 may be formed of different materials thus permitting metal on. metal, 0 metal on ceramic, metal on polymer, ceramic on ceramic, ceramic on polymer, or polymer on. polymer constructions. ϊn the exemplary embodiment shown,, each of the upper and lower articular portions 22, 24 are integrally formed or molded of a single piece of material. Ia other embodiments, one or more of the interdiscai, posterior, and bridge sections of either of the 5 upper or lower articular portions 22, 24 may be formed separately and attached to one or more of the other sections. Attachments in these embodiments may be accomplished using any fastening mechanism known in the art including, for example, a threaded connection, a bolted connection, or a latched connection, In those embodiments, the interdiscal, posterior, and bridge sections also may be formed of different materials. 0 The irsterdiscal section 26 of the upper articular portion 22 may include a bone contacting surface 3S and sm inner surface 44 opposite the bone contacting surface 38. A first articular surface 42 inay form a part of the inner surface 44. In the embodiment shown, the first articular surface 42 AS a recess. Similarly, the lower articular portion 24 may include a bone contacting surface 40 opposite an inner surface 48, with & second articular surface 46 forming a part of the inner surface 4S and being configured to mate with the first articular surface 42. In the embodiment, shown, the second articular surface 46 is a protrusion. Together, the first and second articular surfaces 42, 46 may form an articulating joint that allows toe upper aod lower articular portions 22, 24 to articulate relative to each other. This articulation, in turn, may allow articulating movement of the upper vertebra 14 relative to the lower vertebra 16, and in some embodiments,, may allow movement similar to that provided by a natural spinal disc. In the embodiment shown, the second articular surface 46 is a partial sphere that may rotate or translate within the first articular surface 42, forming a loosely constrained ball and socket style joint. Although shown as a ball and socket joint, the first and second articular surfaces 42, 46 may beany shape or design that allows one of the upper and lower articular portions 22S 24 to move relative to the other of the upper ami lower articular portions 22, 24. For example, the first and second articular surfaces 42, 46 may include a trough and .recess, a ball and saucer, or other shaped features.
As shown in. Fig. 5, waen implanted, the interdiscal section 26 may be situated along an inferior surface of the upper vertebra 14 and the interdiscal section 32 may be situated above a superior surface of the lower vertebra 16. However, it should be understood by one of ordinary skill in the art that the two isterdiscal sections 26, 32 are not limited to such an arrangement, and may be oriented in different positions and/or shaped differently than what is illustrated herein.
The bone contacting surfaces 38, 40 of the upper and lower articular portions 22, 24 may include features or coatings which enhance the fixation of the implanted prosthetic- device 20. For example, the surfaces 38, 40 may be roughened such as by chemical etching, bead-blasting, sanding, grinding, seriating, and/or diamond-cutting, AU or a portion of the bone contacting surfaces 3S, 40 of the upper and lower articular portions 22, 24 may also be coated with a biocompatible and osteoinductive material such as hydroxyapatite (HA), tricaicium phosphate (TCP), and/or calcium carbonate to promote bone in growth and fixation. Alternatively, osteoinductive coatings, such as proteins from transforming growth, factor (TGF) beta superfamily, or bone-morphogenic proteins, such as BM1?2 or BMP7, may be used, Other suitable features may .include spikes, ridges, and/or other surface textures.
M the exemplary embodiment shown, optional upper and lower bone connectors 50, 52 are formed on the bone contacting surfaces 38.40, respectively. These bone connectors 50, 52 extend toward lhe upper and lower vertebrae 14, 16 In a manner to help secure the upper and lower articular portions 22, 24 in place. In the example shown, the bone connectors 50, 52 are keels configured to extend into notches or grooves formed into the vertebral endpiates. Although shown as extending along a substantial length of the upper and lower articular portions, the bone connectors 50., 52 may be of any length, either shorter or longer than that shown, and in addition, may have some oilier orientation or features other than that shown For example, in some embodiments, the bone eoa&eotors are a series of ridges, protrusions, or other surface features that help fix the prosthetic device 20 in place. In the embodiment shown, the upper articular portion 22 also includes additional features for affixing to the vertebrae 14. For example, the upper articular portion 22 includes a connecting aperture 54 (best seen in Figs. 6 and 7) configured to receive a bone fastener 56 (shown in Figs. 3 and 4), such as a screw. The connecting aperture 54 may be disposed adjacent a rear of the interdiscal section 26 so that the bone fastener 56 may be driven through the aperture 54 into the rear of the vertebral, body of the vertebra 14. In other embodiments, the connecting aperture 34 may be disposed elsewhere so long as the bone fastener 56 in the aperture 54 may help hold the prosthetic device 20 in place, En the embodiment shown, the lower articular portion.24 does not include a connecting aperture. However, in other embodiments, one or more connecting apertures may be included, The bridge sections 30, 36 extend rearward from the interdiscai sections 26, 32 respectively. In the embodiment shown, the bridge sections 30, 36 extend substantially along a longitudinal eenteriine 58 (Fig. 7) of the prosthetic device 20. IΛ other embodiments, the bridge sections do not align with a longitudinal center! ine of the mierdiscal sections, but may be curved or angled to depart away from the longitudinal centerHne. The posterior sections 28, 34 may be disposed at the end of the bridge sections 3O5 36 and may be configured to fit adjacent to the processes of the vertebrae 14, 16. The posterior section 34 of the lower articular portion 24 may include a post 60 having a bridge end 62 and a tail ersd 64. The post.60 may be configured to extend generally ai a direction along the spinal column.
The bridge end 62 of the post 60 may connect to the bridge section 36. In. the example shown, the bridge end 62 of the post 60 Is formed by a ber*d in the bridge section 36, and includes a depression 65 that dips below the level of the bridge section 36. The post 60 may extend upwardly so that the tail end 64 of the post 60 may he disposed at a location higher than die bridge section 36. The tail end 64 may include a motion stop 66 configured to limit the range of articulation between the upper and lower articular portions 22, 24. ϊa the embodiment shown, the motion stop 6δ is a bend in the post 60 having a length that is configured to work together with the upper articular portion 22 to limit the available range of articular rotation of the upper artd lower articular portions 22.. 24. Jt should be noted that the post 60 may include a straight segment extending between the bridge end 62 and the tail end 64. In one exemplary embodiment, the post 60 may include a curve concentric with the curvature of the protruding articular surface 46.
The posterior section 2S of the upper articular portion 22 Includes a tab 68 having an aperture 70 formed therein that is configured to receive the post 60 of the lower articular portion 24. In the embodiment shown, the aperture 70 is a rectangular shaped hole having a width w (Fig. 7) that is less than the length of the tail ersd 64. A. portion of the tab 68 forms a motion stop 69 that is configured to cooperate with the motion stop 66 on the post 60. Accordingly, when the upper and lower articular portions 22, 24 are assembled as shown in Fig. 6, the motion stop 66 and the motion stop 69 cooperate to limit the range of articulation of the prosthetic device 20. In addition, the aperture 70 is configured so that when the articulating surfaces 42, 46 are mated, the post 60 extends through the aperture 70 in a manner that articulation may still freely occur within the range.
Because of the bend in the tail end 64 forming the motion stop 66, the upper and lower articular portions 22, 24 may be configured for assembly outside of the disc space S of Fig. 2. For example, trie upper articular portion.22 may be placed on the lower articular portion 24 when the upper and lower articular portions 22, 24 are outside the disc sρac*s S. Further, the upper and lower articular portions 22, 24 may be difficult to disassemble withϋn tbe disc space S. Therefore, the chance of the upper and lower articular portions 22, 24 becoming misaligned after implantation. Is virtually eliminated. Furthermore, the post 60 and aperture 70 reduce axial rotation of one of the upper and lower articular portions 22, 24 about the other of the upper and lower articular portions 22, 24. Accordingly, despite forming a ball mά socket joint, the upper and lower articular portion* 22, 24 are boirod. together so that axial rotation is limited to by the size of the aperture 70 and the post 60. Figs. 4 and ? axe top views of the prosthetic device 20. As apparent in these views, the post 60 and aperture 70, while still aligned along the longitudinal cen.terli.ne 5& are also rotated. Accordingly, the tail end 64 is turned to point in a direction, offset from the longitudinal centerϋne 58. Likewise, the rectangular or square aperture 70 is angled to match the angle of the tail end 6'4. in the embodiment shown, the angle is formed in the posterior section 34 of the lower articular portion 24, and not in the bridge section 36 of the lower articular portion 24. As seen best in Fig. 4, this angle may assist irt fitting the prosthetic device 20 within the intervertebral space S by allowing the tail end to extend substantially rearward although the bridge sections and intervertebral disc sections extend into the intervertebral space S at an angle. As shown in Fig. 4, the right prosthetic device 21 includes a similar angied posterior end, but is angled rn a direction opposite that of the left prosthetic device 20. In some embodiments, the posterior sections are not angled at all, while in others the bridge sections are angled or turned.
Figs. Sa-Sc show one example of an articulation range of the articulating prosthetic device 20. Fig. 8a shows the prosthetic device 20 articulated to a first limit, Fig. Sb shows the prosthetic device 20 articulated to a central position, aad Fig. 8c shows the prosthetic device 20 articulated to a second, limit. At the first limit in Fig. 8a, the motion stop 69 on the posterior section 34 of the upper articular portion 22 is in contact with the motion, stop 66 of the lower articular portion 24, Accordingly, a flexion/extension and/or torsional articulation range of the prosthetic device 20 is limited to the amount allowed by the motion stops 66 and 69. Fig. 8b shows the prosthetic device 20 articulated to a substantially central position, with the aperture 70 being disposed about the middle region I i of the post 60, Fig. Sc shows the prosthetic device 20 articulated to the second limit. At the- second limit, the bridge sections 30> 36 act as motion stops to limit, the articulation between the upper and lower articular portions 22, 24. In the example shown, the total range of motion, represented by Fig, 8a to 8c may be about 45 degrees. However, the range of motion could be more or less than this, as controlled by the .motion slops.
Fig. 9 shows an alternate embodiment of an articulating device, ϊn Fig, 9, a biasing member 72 is disposed about the post 60, As discussed above, in posterior procedures, muscles and ligaments supporting the vertebrae may be disconnected from the facet joints, and the facet joints may be removed. Accordingly, Implanting an articular device may allow unrestrained movement within the range of motion. To limit the undesirable ranges of motion, the biasing member 72 in FIg. 9 may bias the prosthetic device 20 to a desired position, such as a neutral position. Accordingly, although some or all the muscles and ligaments that control the articulation of a healthy spinal disc are removed, the biasing member 72 may provide a stabilizing force that controls the articular movement. In one example, the biasing member 72 is one or more springs disposed about the post 60 both above and below the posterior section 28 of the upper articular portion 22. This may provide dampening in both flexion and tension. In another embodiment, die biasing member is a elastomeric member. In yet other embodiments, the biasing member may be, for example, a friction element, an extendable band, or a bumper, such as a urethane bumper. Ia some embodiments, rather than being disposed both, above and below the posterior section 28 of the upper articular portion 22, the biasing member 72 is disposed only above or only below the posterior section 2S of the upper articular portion 22. ϊn other embodiments, the biasing member is disposed elsewhere, such as on the bridge sections 30, 36. In yet other embodiments, the biasing member may provide some torsional resistance to the articular device.
Another embodiment of an articular prosthetic device 100 is shown in Figs. 10-16, The articular prosthetic device 100 may have many features similar to the articular prosthetic device 20 described above, A description of these features will not be repeated here in detail. The articular prosthetic device 100 includes sn upper articular portion 102 and a lower articular portion 104, each having an interdiscaf section 106, 108. respectively. The interdiscal sections 106. .!OS define a longitudinal cevrterlinε 109. A first connecting aperture 110 on the upper articular portion 102 as configured to allow introduction of a hone fastener 112, such as a screw, in a direction that is substantially aligned with the longitudinal centeriine 109 (Fig, 12) of the articular prosthetic device 100. so that the fastener 112 and the longitudinal cencerime 109 may lie substantially within the same plane. Similarly, a second connecting aperture 1 14 on the lower articular portion 104 is configured to allow introduction of a bone fastener 116 in a direction that is substantially aligned with the longitudinal ceateriϊae 109 of the articular prosthetic device 100 so that the fastener 116 and the longitudinal centerime 109 may lie substantially within the same plane. ϊn a conventional prosthetic disc, any screws are driven into bone at an angle offset from the longitudinal eenterlme. As the screws are tightened, drawing the device against the bone, the device may be displaced and may move from its initial, set position. Displacement often occurs in the direction of the screw. Accordingly, if the direction of the screw is offset from the longitudinal centeriine of the device, thea when driven into the bone, the screw often displaces the device in. a direction offset Horn the longitudinal centeriine. This movement can create alignment discrepancies between the top and bottom articulating portions.
To assist in securing it in place* the articular prosthetic device I 00 is configured so that both the βrst and second connecting apertures 11.0, 1 14 are configured to align the respective fasteners 112, 116 so that the longitudinal centeriine 109 and the fasteners 1 12. 116 lie substantial!}? within the same plane. Accordingly, when the fasteners 112, 116 draw the prosthetic device 100 tight against the bone, any movement or displacement- of the prosthetic device 100 from its position is in the direction of the longitudinal ee&terUne. Accordingly, the prosthetic device 100 may be better aligned and may sit closer to the actual desired location.
The articular prosthetic device 100 also is designed to be versatile and fit in either a right or left side of the vertebral space S. Accordingly, a physician need not determine whether the prosthetic device 100 is a left or a right device. This simplifies the surgical procedure and reduces chance of error. Further, a single prosthetic device usable for both the right and left sides may reduce and simplify manufacturing costs because only one design is required, rather than two. It should be noted, however, that the disclosed features may be included on symmetric devices, such as devices designed for use in either « left or tight position, or on asymmetric devices, such as devices designed for use in one of a left and a right position.
Like the prosthetic device 20 described above, the prosthetic device 100 of Figs. 10-15 includes a posterior section U 8 of the lower articular portion 104 having an upwardly extending post 120, The post 120 is disposed, along the centerline 109 and includes a tnotion stop 122 that cooperates with a posterior section 124 of the upper articular portioa 102 to limit the range of articulation. Ia this embodiment, the post 120 includes an aperture 126 extending therethrough, that provides access to the first connecting aperture ϊ "10 in the upper articular portion 102. As shown in Fig. 15, the second connecting aperture 114 is disposed Ln a lower portion of the post 120 and therefore can be easily accessed from the posterior side.
The posterior section 124 of the upper articular portion 102 includes a first extending ami 128 and a second extending arm 130. The arms 12S1 130 extend around the post 120 so that the post is constrained from both lateral movement and from displacement along the centerline 109. Adjacent the post Ϊ20, the arms 12-8, 130 include motion stops 132 configured to contact the motion stop 122 on the post 120. Unlike the prosthetic device 20 described above, the amis 128, 130 of the prosthetic device 100 do not connect to form a closed aperture through which the post extends. Instead, the arms 132 with the motion stops 132 do not connect, leaving a centrally disposed gap 134. The gap 134 in the posterior section of the upper articular portion 102 of the prosthetic device ! 00 is aligned with the aperture 126 In the post 120 to provide access to the connecting aperture HO of the upper articular portion .102 of the prosthetic device 100, as shown in Fig. 15. With reference to Fig. 1 1 , the second connecting aperture i 14 may be formed in the lower articular portion 104, and may be formed at the first mrά of the post 120. Accordingly, the first and second connecting apertures 110, 114 are not horizontally aligned, but are horizontally offset. The upper connecting aperture ϊ 10 is disposed so that the fastener 112 enters the rear of the anterior arch of the vertebra 14. The lower connecting aperture i 14 is disposed so that the fastener 116 enters the pedicle and passes into the anterior arch of the lower vertebra 1.6. It should be noted that in. other embodiments, the connecting apertures 110. .114 may horizontally aligned, and additionally, in other embodiments, the connecting aperture 114 may be disposed at any location adjacent to or between the post 120 and the articular portions. One example of this is shown with reference to an artificial intervertebral joint 100' in Fig. 16. AH the features discussed with respect to the artificial intervertebral joint. 100 also may be applicable to the artificial intervertebral joint 100'. The artificial intervertebral joint. 100 may be installed between the vertebrae 14, 16 as wHl be described below, Although Installation will be described with respect to the left prosthetic device 2O5. it is understood that the right prosthetic device 21 may be installed in a similar .manner. Further, it is understood that the prosthetic device 100 also may be installed in a similar manner. Generally, as discussed above, the artificial intervertebral prosthetic device 20 may be implanted into a body using a posterior transforaminai approach similar to the known transforammal lumbar interbody fusion (TLII!1') or posterior lumbar interbody fusion (IPLiF) procedures. PLIF approaches are generally more medial and rely on more retraction of the traversing root and dura to access the vertebral interspace. TOP approaches are typically more oblique, requiring less retraction, of the exiting root, and less epidural bleeding with less refraction of the traversing structures. Et is also possible to access the interspace using a far lateral approach. Ia some instances it is possible to access the interspace via the far lateral without resecting the facets.
Furthermore, a direct lateral approach through the psoas Is known. This approach avoids the posterior neural elements completely . It is anticipated that embodiments of the prosthetic devices 20, 1.00 cotiid utilize any of these common approaches.
According to at least one of these approaches, an incision, such as a midline incision, may be made hi the patient's back and some or all of the affected disc and surrounding tissue may be removed via the foramma. The superior endplate surface of the vertebra 14 may be milled, rasped, or otherwise resected to match the profile of the bone contacting surface 38 of the upper articular surface 22, to normalize stress distributions on the superior ersdplate surface of the vertebra 14, and/or to provide initial fixation prior to bone ingrowth. The preparation of the endplate of vertebra 14 may result in a flattened surface or in surface contours such as pockets, grooves, or other contours that may match corresponding features on the bone contacting surface 38. The inferior endplate of the vertebra 16 may be similarly prepared to receive the lower articular portion 24 to the extent allowed by the exiting nerve root and the dorsal root, ganglia. In some procedures. the natural facet joints of vertebrae 14, 16 may be trimmed or removed to make room for the posterior component 120.
The upper and lower articular portions 22, 24 of the prosthetic device 20 may then be oriented so Hurt the post 60 is extending through the aperture 70. Or with reference to the prosthetic device 100, so that the post 120 is extending between the two arms 128. 130. The upper and lower articular portions then may be simultaneously introduced into the transforarøinal openings and are placed in the appropriate intervertebral disc space between the upper and lower vertebrae. In some procedures, because of the compact nature of the post, and aperture <or post and arms), the upper and lower articular portions may be introduced through a cannula. If the pieces are modular, the prosthetic device may be implanted pieces at a time, with posterior sections of the upper and lower articular portions introduced last. The bridge sections 30, 36 may extend in a posterior direction from the interdϊscal sections 26, 3'2 and in a posterior direction from the intervertebral disc space S. The posterior sections 28, 34 are positioned in a posterior direction of the intervertebral disc space to replace or supplement the function of the natural facet joints. Referring to the prostlietic device 20, the fastener 56 may be inserted through the connecting aperture 58 into the upper vertebra. 14. Referring to the prosthetic device 100, the fastener 112 may he introduced through the gap 134 and the aperture 126 in the posterior sections, through the aperture 110, and into the upper vertebra 14. Likewise, the fastener 136 may be inserted through the connecting aperture 11.4 in. the posterior section 118 of the lower articular portion 1.04 and into adjacent bone such as the pedicle of the vertebra 16.
As installed, the hall and socket type joint created fay the articular surfaces 42, 46 may be relatively stable and self-centering. Both the anterior joint and the posterior connection (formed by the post and aperture connection) allow the prosthetic device 20 to resist shear forces, particularly anterior-posterior forces. Further, rotational motion about a longitudinal centeriine defined by the cylindrical bodies 14, 16 may be limited both by the constraint in the post and aperture connection and by the combined constraint provided by the two prosthetic devices 20, 21. The robust and forgiving structure of the anterior joint and the post and aperture connection permits misalignment and slight inaccuracy in the placement of the prosthetic devices 20, 21. For example, the ball and socket structure of the articular joint tolerates a certain amount of misalignment between the components. The Interaction of the post and aperture may also accommodate parallel misalignment and/or anterior-posterior misalignment between the prosthetic devices 20, 21. ϊn some embodiments, a single unilateral prosthetic device may be implanted, while in others, two devices, forming a right: and a left device may be implanted. In yet other embodiments, instead of only upper and lower articulating portions that provide articulation, a three-piece articuiatiβg disc may be used. In this embodiment, a third articulating component may be disposed between the upper and lower articulating portions to provide articulation. Although only a few exemplary embodiments have been described in detail above, those skilled in the art. will readily appreciate thai many modifications are possible m the exemplary embodiments without materially departing from the novel teachings and advantages of this disclosure. Accordingly, ail such modifications and alternative are intended to be included within the scope of the invention as defined in the following claims. Those skilled in the art should also realize that, such modifications and equivalent, constructions or methods do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without, departing from the spirit and scope of the present disclosure, ϊt ts understood that all spatial references, such as "horizontal," "vertical," "top," "upper," "lower," "bottom/'' "left," "right," "cephalsd." "caudal," "upper," and "lower," are for illustrative purposes only and can be varied within the scope of the disclosure. In the claims, means-plus- function clauses are intended to cover the elements described herein as performing the recited function and not only structural equivalents, but a^lso equivalent elements.

Claims

We Claim:
1. A prosthetic device for placement m a« intervertebral βpaee defined between as upper vertebrae and a lower vertebrae to provide articulating motion to the upper and.
5 I o wer vertebrae, compri si ng: an upper articular portion configured to be at least partially disposed in the intervertebral space: and a lower articular portion configured to be at least partially disposed in the intervertebral space below the upper articular portion, the tipper and lower articular portions being O configured to provide articulating motion to the upper and lower vertebrae, the upper and lower articular portions each including a posterior section configured to be disposed in a location posterior of the intervertebral space, wherein the posterior section of one of the upper and lower articular portions includes a post, and wherein the posterior section of the other of the upper and lower articular S portions includes a receiving portion configured to interact with the post during articulation.
2. The prosthetic device of claim i , wherein the post is configured to extend in a direction along the spinal column.
3. The prosthetic- device of claim 1 „ wherein the post includes a motion stop that limits an articulation range of the upper and lower articular portions.
4. The prosthetic device of claim 3, wherein the motion stop is at one end of the post. 5
5. The prosthetic device of claim 1 , wherein the upper and lower articular portions each include; an interdiscal section configured to be disposed within the intervertebral space; and a bridge section connecting the interdiscal section to the posterior section, wherein the 0 post is an integral extension from the bridge section of said one of the upper and lower articular portions.
6t The prosthetic- device of claim 1 , wlierein the post includes a .first end and a second end. the first end being bent to angle away from a ceaterHae of the prosthetic device.
7. The prosthetic device of claim. L wherein the receiving portion is an aperture, the post extending through the aperture,
8, The prosthetic device of claim 1 ? wherein the receiving portion, is configured to extend about at least two sides of the post to limit motion of one of fee upper and lower articular portions relative to the other of the upper &«d lower articular portions.
9. The prosthetic device of claim 1 , wtierein the upper and lower articular portions each include: an intetdiscal section configured to be disposed within the intervertebral space; and a bridge section connecting the infeπliscal section to the posterior section, wherein the bridge sections are configured to limit a range of articulating motion of the device.
jø. The prosthetic device of claim 1, further comprising a biasing member associated with at least oae of the upper aad lower articular portions to dampen, articulation of the upper articular portion relative to the lower articular portion.
11. The prosthetic device of claim 10, wherein the biasing member is disposed at the posterior end of at least one of the upper and lower articular portions.
12. The prosthetic device of claim 10, wherein tlie biasing member is configured to resist motion of the post relative to the receiving member.
13, The prosthetic- device of claim 10, wherein the biasing member is configured to dampen motion ia both flexion and extension. \9
14, The prosthetic device of claim 10, wherein the biasing member is at least one of a spring, an elastomeric ring, a bigb-friction element, and a band.
15. The prosthetic device of claim 10, wherein the resistance member is disposed about the post.
16, The prosthetic device of claim 1 , further comprising at least one fastener configured to attach at least one of the upper a»d lower articular portions to at least one of die upper and lower vertebrae.
17. The prosthetic, device of claim 16, wherein the fasteners are screws substantially aligned along a ceiiterlme.
1 S. The prosthetic device of claim. L further comprising a connecting hole fanned iti at least one of the upper and lower articular portions.
19. The prosthetic device of claim 18, wherein the connecting hole is aligned with a centerline of the at. least, one of the upper and lower articular portions.
20. The prosthetic device of claim 1 > wherein the post includes an aperture formed therein for passage of a fastener.
21. A prosthetic device for implantation into an intervertebral space defined between an upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae, comprising: an upper articular portion configured to be at least partially disposed in the intervertebral space; a lower articular portion configured to be at least partially disposed in the intervertebral space below the upper articular portion, the upper and lower articular portions being configured to provide articulated motion to the upper and lower vertebrae; and at least one connecting hole associated with at least one of the upper and lower articular portions, said at least one of the upper and lower articular portions defining a .lo.ogiiud.mal centerline and the at least one connecting hole being aligned along the centerline.
22. The prosthetic device of claim 2I7 comprising at least one connecting hole associated with each of the upper and lower articular portions, the upper and lower articular portions defining a longitudinal centerline and the at least one connecting hole being aligned along the centeriine.
23, The prosthetic device of claim 22, wherein the at least one connecting hole associated with the upper articular portion is horizontally offset from the at least one connecting hole associated with the lower articular portion.
24. The prosthetic device of claim 21. wherein the upper and. lower articular portions each include: an interdiscal section configured to be disposed in the intervertebral space; and a posterior section configured to be disposed ΪΏ a location posterior of the respective upper or lower vertebrae.
25. The prosthetic device of cJaim 24, wherein the posterior section of one of the upper and Sower articular portions includes a. post and wherein the posterior section of the other of the upper and lower articular portions includes a receiving section configured to interact with the post during articulation.
26. The prosthetic device of cl aim 25, wherein the post i s aligned along the longitudinal centerline.
27, The prosthetic device of claim 26, whereiti the post, includes &n aperture formed therein, the aperture being configured to provide access to the at least one connecting hole.
28, The prosthetic device of claim 26, wherein the receiving section includes a gap formed therein, the gap being configured to provide access to the si least one connecting hole.
5 29. The prosthetic device of claim.26. wherein the receiving section is formed of at least one arm extending partially around the post.
30. The prosthetic device of claim 26, wherein the receiving section is formed by m aperture.
10
31. The prosthetic device of claim 26, wherein the at least one connecting hole is disposed at one end of the post,
32. The prosthetic device of claim.25, wherein the post is configured to extend in a 1.5 direction along the spinal column.
33. The prosthetic device of claim 25, wherein the post includes a motion stop that limits an articulation range of the upper and tower articular portions.
0 34. The prosthetic device of claim 33, wherein the motion stop is at one end of the post-
35. The prosthetic device of claim.25, wherein the upper and lower articular portions each include! a bridge section connecting the mterdiseal section to the posterior section, 5 wherein the post is an. integral extension from the bridge section of said one of the upper and lower articular portions.
36, The prosthetic device of claim 25, wherein the receiving portion is configured to extend about at least two sides of the post to limit motion of one of the upper and lower 0 articular portions relative to the other of the upper and lower articular portions.
37. The prosthetic device of claim 25, wherein the upper and lower articular portions each, include a bridge section connecting the interdiscal section to the posterior section- wherein the bridge sections are configured to limit a range of articulating motion of the device.
5
38. The prosthetic device of claim 21, further comprising a biasing member associated with at least one of the upper and lower articular portions to dampen articulation of the upper articular portion, relative to the lower articular portion.
10 39. The prosthetic device of claim 21, further comprising at least one fastener configured to cooperate wish the connecting hole to attach at least one of the upper and lower articular portions to at least one of the upper and lower vertebrae.
40. A joint replacement device- for placement in an intervertebral space defined 1.5 between an. upper vertebrae and a lower vertebrae to provide articulating motion to the upper and lower vertebrae, comprising: a first joint replacement device; a second joint replacement device, wherein the first, and the second joint replacement devices each include 20 an upper articular device configured to be at least partially disposed in the intervertebral space; a lower articular device configured to be at least partially disposed in the mterveitebra! space below the upper articular portion, the upper and lower articular portions being configured to provide articulated motion to the upper and lower vertebrae, the upper and 5 lower articular devices each having a centerliae and a screw port aligned along the centerline.
PCT/US2007/060549 2006-01-30 2007-01-16 Posterior joint replacement device WO2007089972A2 (en)

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EP07701237A EP1978898B1 (en) 2006-01-30 2007-01-16 Posterior joint replacement device
JP2008553436A JP2009525148A (en) 2006-01-30 2007-01-16 Posterior joint replacement device
CN200780010039XA CN101404957B (en) 2006-01-30 2007-01-16 Posterior joint replacement device
AU2007211165A AU2007211165B2 (en) 2006-01-30 2007-01-16 Posterior joint replacement device
AT07701237T ATE499080T1 (en) 2006-01-30 2007-01-16 REAR JOINT REPLACEMENT DEVICE
DE602007012659T DE602007012659D1 (en) 2006-01-30 2007-01-16 REAR FENDER

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US11/343,159 US7811326B2 (en) 2006-01-30 2006-01-30 Posterior joint replacement device

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JP (1) JP2009525148A (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011509747A (en) * 2008-01-16 2011-03-31 ウォーソー・オーソペディック・インコーポレーテッド Joint replacement device

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2897259B1 (en) 2006-02-15 2008-05-09 Ldr Medical Soc Par Actions Si INTERSOMATIC TRANSFORAMINAL CAGE WITH INTERBREBAL FUSION GRAFT AND CAGE IMPLANTATION INSTRUMENT
FR2824261B1 (en) 2001-05-04 2004-05-28 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS AND IMPLEMENTATION METHOD AND TOOLS
FR2827156B1 (en) 2001-07-13 2003-11-14 Ldr Medical VERTEBRAL CAGE DEVICE WITH MODULAR FASTENING
FR2846550B1 (en) 2002-11-05 2006-01-13 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS
GB0301085D0 (en) * 2003-01-17 2003-02-19 Krishna Manoj Articulating spinal disc prosthesis
CN1774220A (en) 2003-02-14 2006-05-17 德普伊斯派尔公司 In-situ formed intervertebral fusion device and method
US8419770B2 (en) 2003-12-10 2013-04-16 Gmedelaware 2 Llc Spinal facet implants with mating articulating bearing surface and methods of use
US7771479B2 (en) 2004-01-09 2010-08-10 Warsaw Orthopedic, Inc. Dual articulating spinal device and method
BRPI0507468A (en) 2004-02-04 2007-07-10 Ldr Medical intervertebral disc prosthesis
FR2865629B1 (en) 2004-02-04 2007-01-26 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS
US8333789B2 (en) 2007-01-10 2012-12-18 Gmedelaware 2 Llc Facet joint replacement
US8562649B2 (en) 2004-02-17 2013-10-22 Gmedelaware 2 Llc System and method for multiple level facet joint arthroplasty and fusion
FR2869528B1 (en) 2004-04-28 2007-02-02 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS
US7588578B2 (en) 2004-06-02 2009-09-15 Facet Solutions, Inc Surgical measurement systems and methods
US20060085076A1 (en) * 2004-10-15 2006-04-20 Manoj Krishna Posterior spinal arthroplasty-development of a new posteriorly inserted artificial disc and an artificial facet joint
US20060265074A1 (en) 2004-10-21 2006-11-23 Manoj Krishna Posterior spinal arthroplasty-development of a new posteriorly inserted artificial disc, a new anteriorly inserted artifical disc and an artificial facet joint
ATE524121T1 (en) 2004-11-24 2011-09-15 Abdou Samy DEVICES FOR PLACING AN ORTHOPEDIC INTERVERTEBRAL IMPLANT
FR2879436B1 (en) 2004-12-22 2007-03-09 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS
US8591583B2 (en) 2005-08-16 2013-11-26 Benvenue Medical, Inc. Devices for treating the spine
US8366773B2 (en) 2005-08-16 2013-02-05 Benvenue Medical, Inc. Apparatus and method for treating bone
AU2006279558B2 (en) 2005-08-16 2012-05-17 Izi Medical Products, Llc Spinal tissue distraction devices
FR2891135B1 (en) 2005-09-23 2008-09-12 Ldr Medical Sarl INTERVERTEBRAL DISC PROSTHESIS
FR2893838B1 (en) 2005-11-30 2008-08-08 Ldr Medical Soc Par Actions Si PROSTHESIS OF INTERVERTEBRAL DISC AND INSTRUMENTATION OF INSERTION OF THE PROSTHESIS BETWEEN VERTEBRATES
US7811326B2 (en) 2006-01-30 2010-10-12 Warsaw Orthopedic Inc. Posterior joint replacement device
US20070270862A1 (en) * 2006-03-30 2007-11-22 Sdgi Holdings, Inc. Instruments and methods for preparing an intervertebral space
US7905906B2 (en) 2006-06-08 2011-03-15 Disc Motion Technologies, Inc. System and method for lumbar arthroplasty
US8105382B2 (en) 2006-12-07 2012-01-31 Interventional Spine, Inc. Intervertebral implant
US8075596B2 (en) 2007-01-12 2011-12-13 Warsaw Orthopedic, Inc. Spinal prosthesis systems
US8465546B2 (en) 2007-02-16 2013-06-18 Ldr Medical Intervertebral disc prosthesis insertion assemblies
CA2678006C (en) 2007-02-21 2014-10-14 Benvenue Medical, Inc. Devices for treating the spine
US8864832B2 (en) 2007-06-20 2014-10-21 Hh Spinal Llc Posterior total joint replacement
FR2916956B1 (en) 2007-06-08 2012-12-14 Ldr Medical INTERSOMATIC CAGE, INTERVERTEBRAL PROSTHESIS, ANCHORING DEVICE AND IMPLANTATION INSTRUMENTATION
US8900307B2 (en) 2007-06-26 2014-12-02 DePuy Synthes Products, LLC Highly lordosed fusion cage
EP2471493A1 (en) 2008-01-17 2012-07-04 Synthes GmbH An expandable intervertebral implant and associated method of manufacturing the same
CA2720580A1 (en) 2008-04-05 2009-10-08 Synthes Usa, Llc Expandable intervertebral implant
US8535327B2 (en) 2009-03-17 2013-09-17 Benvenue Medical, Inc. Delivery apparatus for use with implantable medical devices
US9526620B2 (en) 2009-03-30 2016-12-27 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US20110040331A1 (en) * 2009-05-20 2011-02-17 Jose Fernandez Posterior stabilizer
CA2706233C (en) * 2009-06-04 2015-05-05 Howmedica Osteonics Corp. Orthopedic peek-on-polymer bearings
ES2659063T3 (en) 2009-09-17 2018-03-13 Ldr Holding Corporation Intervertebral implant incorporating expandable bone fixation members
US8764806B2 (en) 2009-12-07 2014-07-01 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
US9393129B2 (en) 2009-12-10 2016-07-19 DePuy Synthes Products, Inc. Bellows-like expandable interbody fusion cage
CA3003975A1 (en) 2009-12-31 2011-07-07 Ldr Medical Anchoring device, intervertebral implant and implantation instrument
US9592063B2 (en) 2010-06-24 2017-03-14 DePuy Synthes Products, Inc. Universal trial for lateral cages
US8979860B2 (en) 2010-06-24 2015-03-17 DePuy Synthes Products. LLC Enhanced cage insertion device
TW201215379A (en) 2010-06-29 2012-04-16 Synthes Gmbh Distractible intervertebral implant
US9402732B2 (en) 2010-10-11 2016-08-02 DePuy Synthes Products, Inc. Expandable interspinous process spacer implant
WO2012178018A2 (en) 2011-06-24 2012-12-27 Benvenue Medical, Inc. Devices and methods for treating bone tissue
US8845728B1 (en) 2011-09-23 2014-09-30 Samy Abdou Spinal fixation devices and methods of use
US20130226240A1 (en) 2012-02-22 2013-08-29 Samy Abdou Spinous process fixation devices and methods of use
FR2987256B1 (en) 2012-02-24 2014-08-08 Ldr Medical ANCHORING DEVICE FOR INTERVERTEBRAL IMPLANT, INTERVERTEBRAL IMPLANT AND IMPLANTATION INSTRUMENTATION
US9198767B2 (en) 2012-08-28 2015-12-01 Samy Abdou Devices and methods for spinal stabilization and instrumentation
US9320617B2 (en) 2012-10-22 2016-04-26 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
US9522070B2 (en) 2013-03-07 2016-12-20 Interventional Spine, Inc. Intervertebral implant
US10085783B2 (en) 2013-03-14 2018-10-02 Izi Medical Products, Llc Devices and methods for treating bone tissue
EP2777628B1 (en) * 2013-03-15 2018-02-28 Neos Surgery, S.L. Device for repairing an intervertebral disc
FR3005569B1 (en) 2013-05-16 2021-09-03 Ldr Medical VERTEBRAL IMPLANT, VERTEBRAL IMPLANT FIXATION DEVICE AND IMPLANTATION INSTRUMENTATION
FR3016793B1 (en) 2014-01-30 2021-05-07 Ldr Medical ANCHORING DEVICE FOR SPINAL IMPLANT, SPINAL IMPLANT AND IMPLANTATION INSTRUMENTATION
FR3020756B1 (en) 2014-05-06 2022-03-11 Ldr Medical VERTEBRAL IMPLANT, VERTEBRAL IMPLANT FIXATION DEVICE AND IMPLANT INSTRUMENTATION
US11426290B2 (en) 2015-03-06 2022-08-30 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US10857003B1 (en) 2015-10-14 2020-12-08 Samy Abdou Devices and methods for vertebral stabilization
CA3019527A1 (en) 2016-03-29 2017-10-05 Restorative Spine, LLC Facet joint replacement device and methods of use
JP7023877B2 (en) * 2016-06-28 2022-02-22 イーアイティー・エマージング・インプラント・テクノロジーズ・ゲーエムベーハー Expandable and angle-adjustable range-of-motion intervertebral cage
CN109688981A (en) 2016-06-28 2019-04-26 Eit 新兴移植技术股份有限公司 Distensible, adjustable angle intervertebral cage
US10744000B1 (en) 2016-10-25 2020-08-18 Samy Abdou Devices and methods for vertebral bone realignment
US10973648B1 (en) 2016-10-25 2021-04-13 Samy Abdou Devices and methods for vertebral bone realignment
US10888433B2 (en) 2016-12-14 2021-01-12 DePuy Synthes Products, Inc. Intervertebral implant inserter and related methods
EP3612115A4 (en) * 2017-04-17 2021-01-20 Marc Peterman Spinal osteotomy
US10398563B2 (en) 2017-05-08 2019-09-03 Medos International Sarl Expandable cage
US11344424B2 (en) 2017-06-14 2022-05-31 Medos International Sarl Expandable intervertebral implant and related methods
US10940016B2 (en) 2017-07-05 2021-03-09 Medos International Sarl Expandable intervertebral fusion cage
US11179248B2 (en) 2018-10-02 2021-11-23 Samy Abdou Devices and methods for spinal implantation
US11446156B2 (en) 2018-10-25 2022-09-20 Medos International Sarl Expandable intervertebral implant, inserter instrument, and related methods
EP3876873A4 (en) * 2018-11-09 2022-08-10 Marc Peterman Intervertebral spinal implant and surgical methods
US11839554B2 (en) 2020-01-23 2023-12-12 Robert S. Bray, Jr. Method of implanting an artificial disc replacement device
US11426286B2 (en) 2020-03-06 2022-08-30 Eit Emerging Implant Technologies Gmbh Expandable intervertebral implant
WO2022072806A1 (en) * 2020-10-02 2022-04-07 Facet Mobility, Llc Artificial spinal prosthesis
US11850160B2 (en) 2021-03-26 2023-12-26 Medos International Sarl Expandable lordotic intervertebral fusion cage
US11752009B2 (en) 2021-04-06 2023-09-12 Medos International Sarl Expandable intervertebral fusion cage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050171610A1 (en) * 2004-01-09 2005-08-04 Sdgi Holdings, Inc. Mobile bearing spinal device and method
US20050256578A1 (en) * 2004-05-11 2005-11-17 Geoffrey Blatt Artificial spinal disc, insertion tool, and method of insertion

Family Cites Families (233)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1146301A (en) 1980-06-13 1983-05-17 J. David Kuntz Intervertebral disc prosthesis
FR2553993B1 (en) 1983-10-28 1986-02-07 Peze William METHOD AND APPARATUS FOR DYNAMIC CORRECTION OF SPINAL DEFORMATIONS
DE3447583A1 (en) 1984-12-28 1986-07-10 Battelle-Institut E.V., 6000 Frankfurt METHOD FOR PRODUCING IMPLANTABLE BONE REPLACEMENT MATERIALS
US4743260A (en) * 1985-06-10 1988-05-10 Burton Charles V Method for a flexible stabilization system for a vertebral column
US4697586A (en) 1986-06-24 1987-10-06 Gazale William J Combined chisel-guide surgical instrument
CA1283501C (en) * 1987-02-12 1991-04-30 Thomas P. Hedman Artificial spinal disc
US4836196A (en) 1988-01-11 1989-06-06 Acromed Corporation Surgically implantable spinal correction system
US5772661A (en) 1988-06-13 1998-06-30 Michelson; Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
FR2642645B1 (en) * 1989-02-03 1992-08-14 Breard Francis FLEXIBLE INTERVERTEBRAL STABILIZER AND METHOD AND APPARATUS FOR CONTROLLING ITS VOLTAGE BEFORE PLACEMENT ON THE RACHIS
USRE36221E (en) 1989-02-03 1999-06-01 Breard; Francis Henri Flexible inter-vertebral stabilizer as well as process and apparatus for determining or verifying its tension before installation on the spinal column
US4932975A (en) 1989-10-16 1990-06-12 Vanderbilt University Vertebral prosthesis
US5266289A (en) 1989-11-16 1993-11-30 Nissan Chemical Industries Ltd. Process for producing high-purity silica by reacting crude silica with ammonium fluoride
FR2672202B1 (en) * 1991-02-05 1993-07-30 Safir BONE SURGICAL IMPLANT, ESPECIALLY FOR INTERVERTEBRAL STABILIZER.
FR2676911B1 (en) 1991-05-30 1998-03-06 Psi Ste Civile Particuliere INTERVERTEBRAL STABILIZATION DEVICE WITH SHOCK ABSORBERS.
GB9125798D0 (en) * 1991-12-04 1992-02-05 Customflex Limited Improvements in or relating to spinal vertebrae implants
US5258031A (en) * 1992-01-06 1993-11-02 Danek Medical Intervertebral disk arthroplasty
US5425773A (en) 1992-01-06 1995-06-20 Danek Medical, Inc. Intervertebral disk arthroplasty device
DE4208116C2 (en) * 1992-03-13 1995-08-03 Link Waldemar Gmbh Co Intervertebral disc prosthesis
DE4208115A1 (en) 1992-03-13 1993-09-16 Link Waldemar Gmbh Co DISC ENDOPROTHESIS
US5423825A (en) 1992-06-10 1995-06-13 Levine; Andrew S. Spinal fusion instruments and methods
US5676701A (en) 1993-01-14 1997-10-14 Smith & Nephew, Inc. Low wear artificial spinal disc
DE4303770C1 (en) 1993-02-09 1994-05-26 Plus Endoprothetik Ag Rotkreuz Stiffening and correction system for spinal vertebrae - comprises screw-ended holders with connecting rod supporting clamped distance pieces.
US5415661A (en) * 1993-03-24 1995-05-16 University Of Miami Implantable spinal assist device
FR2707480B1 (en) 1993-06-28 1995-10-20 Bisserie Michel Intervertebral disc prosthesis.
DE4328690B4 (en) 1993-08-26 2006-08-17 SDGI Holdings, Inc., Wilmington Intervertebral implant for vertebral body blocking and implantation instrument for positioning the intervertebral implant
FR2709246B1 (en) 1993-08-27 1995-09-29 Martin Jean Raymond Dynamic implanted spinal orthosis.
WO1995010238A1 (en) * 1993-10-08 1995-04-20 Chaim Rogozinski Spinal treatment apparatus and method including multi-directional attachment member
FR2712481B1 (en) 1993-11-18 1996-01-12 Graf Henry Improvements to flexible inter-vertebral stabilizers.
US5443515A (en) 1994-01-26 1995-08-22 Implex Corporation Vertebral body prosthetic implant with slidably positionable stabilizing member
EP0677277A3 (en) 1994-03-18 1996-02-28 Patrice Moreau Spinal prosthetic assembly.
CA2551185C (en) 1994-03-28 2007-10-30 Sdgi Holdings, Inc. Apparatus and method for anterior spinal stabilization
FR2721501B1 (en) 1994-06-24 1996-08-23 Fairant Paulette Prostheses of the vertebral articular facets.
US5674296A (en) 1994-11-14 1997-10-07 Spinal Dynamics Corporation Human spinal disc prosthesis
KR100279919B1 (en) * 1995-03-15 2001-03-02 가나이 쓰도무 Method and apparatus for processing ic card found
US5571191A (en) 1995-03-16 1996-11-05 Fitz; William R. Artificial facet joint
US6206922B1 (en) 1995-03-27 2001-03-27 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
FR2747034B1 (en) * 1996-04-03 1998-06-19 Scient X INTERSOMATIC CONTAINMENT AND MERGER SYSTEM
US6159214A (en) 1996-07-31 2000-12-12 Michelson; Gary K. Milling instrumentation and method for preparing a space between adjacent vertebral bodies
FR2751864B1 (en) 1996-08-01 1999-04-30 Graf Henry DEVICE FOR MECHANICALLY CONNECTING AND ASSISTING VERTEBRES BETWEEN THEM
US6852512B2 (en) 1996-10-04 2005-02-08 Hanil Synthetic Fiber Co., Ltd. Expression vectors for production of foreign proteins as soluble forms
US6190414B1 (en) * 1996-10-31 2001-02-20 Surgical Dynamics Inc. Apparatus for fusion of adjacent bone structures
US5895428A (en) * 1996-11-01 1999-04-20 Berry; Don Load bearing spinal joint implant
US5728098A (en) * 1996-11-07 1998-03-17 Sdgi Holdings, Inc. Multi-angle bone screw assembly using shape-memory technology
US6068630A (en) * 1997-01-02 2000-05-30 St. Francis Medical Technologies, Inc. Spine distraction implant
US5752957A (en) * 1997-02-12 1998-05-19 Third Millennium Engineering, Llc Polyaxial mechanism for use with orthopaedic implant devices
US6641614B1 (en) 1997-05-01 2003-11-04 Spinal Concepts, Inc. Multi-variable-height fusion device
US6042582A (en) * 1997-05-20 2000-03-28 Ray; Charles D. Instrumentation and method for facilitating insertion of spinal implant
CA2298652A1 (en) * 1997-08-04 1999-02-11 Dennis P. Gordon Multiple axis intervertebral prosthesis
US6146421A (en) 1997-08-04 2000-11-14 Gordon, Maya, Roberts And Thomas, Number 1, Llc Multiple axis intervertebral prosthesis
US20020138143A1 (en) 1997-08-27 2002-09-26 Grooms Jamie M. Cortical bone cervical Smith-Robinson fusion implant
US20010016773A1 (en) 1998-10-15 2001-08-23 Hassan Serhan Spinal disc
US5899941A (en) * 1997-12-09 1999-05-04 Chubu Bearing Kabushiki Kaisha Artificial intervertebral disk
US6986788B2 (en) 1998-01-30 2006-01-17 Synthes (U.S.A.) Intervertebral allograft spacer
US6019792A (en) * 1998-04-23 2000-02-01 Cauthen Research Group, Inc. Articulating spinal implant
US6179874B1 (en) * 1998-04-23 2001-01-30 Cauthen Research Group, Inc. Articulating spinal implant
US6679915B1 (en) * 1998-04-23 2004-01-20 Sdgi Holdings, Inc. Articulating spinal implant
CN2333369Y (en) * 1998-05-29 1999-08-18 中山医科大学孙逸仙纪念医院 Artificial lumbar intervertebral disc
US6126689A (en) 1998-06-15 2000-10-03 Expanding Concepts, L.L.C. Collapsible and expandable interbody fusion device
DE19826619A1 (en) * 1998-06-17 1999-12-30 Ulrich Gmbh & Co Kg Implant for the fusion of two vertebrae
US6682561B2 (en) 1998-06-18 2004-01-27 Pioneer Laboratories, Inc. Spinal fixation system
US6231609B1 (en) * 1998-07-09 2001-05-15 Hamid M. Mehdizadeh Disc replacement prosthesis
US5928284A (en) 1998-07-09 1999-07-27 Mehdizadeh; Hamid M. Disc replacement prosthesis
AU748746B2 (en) 1998-07-22 2002-06-13 Spinal Dynamics Corporation Threaded cylindrical multidiscoid single or multiple array disc prosthesis
DE29813139U1 (en) 1998-07-23 1998-12-03 Howmedica Gmbh Vertebral body reconstruction system
WO2000013619A1 (en) 1998-09-04 2000-03-16 Spinal Dynamics Corporation Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US6749635B1 (en) 1998-09-04 2004-06-15 Sdgi Holdings, Inc. Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
FR2784571B1 (en) * 1998-10-19 2001-02-02 Scient X ANTERIOR OSTEOSYNTHESIS PLATE FOR LUMBAR OR LUMBAR / SACRED VERTEBRES AND INSTRUMENT FOR POSITIONING SUCH A PLATE
JP4230666B2 (en) 1998-10-20 2009-02-25 ジンテーズ ゲゼルシャフト ミト ベシュレンクテル ハフツング Strain adjustment fixture for vertebral fixation surgery
EP1123054A4 (en) 1998-10-21 2006-06-21 Roger P Jackson Spinal fusion apparatus and method
US6113637A (en) 1998-10-22 2000-09-05 Sofamor Danek Holdings, Inc. Artificial intervertebral joint permitting translational and rotational motion
US6159211A (en) 1998-10-22 2000-12-12 Depuy Acromed, Inc. Stackable cage system for corpectomy/vertebrectomy
US6039763A (en) * 1998-10-27 2000-03-21 Disc Replacement Technologies, Inc. Articulating spinal disc prosthesis
US6174311B1 (en) * 1998-10-28 2001-01-16 Sdgi Holdings, Inc. Interbody fusion grafts and instrumentation
US6193757B1 (en) * 1998-10-29 2001-02-27 Sdgi Holdings, Inc. Expandable intervertebral spacers
CA2344891C (en) 1998-10-30 2008-01-08 Gary Karlin Michelson Self-broaching, rotatable, push-in interbody fusion implant and method for deployment thereof
FR2787015B1 (en) 1998-12-11 2001-04-27 Dimso Sa INTERVERTEBRAL DISC PROSTHESIS WITH COMPRESSIBLE BODY
FR2787016B1 (en) * 1998-12-11 2001-03-02 Dimso Sa INTERVERTEBRAL DISK PROSTHESIS
FR2787014B1 (en) 1998-12-11 2001-03-02 Dimso Sa INTERVERTEBRAL DISC PROSTHESIS WITH REDUCED FRICTION
FR2787017B1 (en) 1998-12-11 2001-04-27 Dimso Sa INTERVERTEBRAL DISC PROSTHESIS WITH IMPROVED MECHANICAL BEHAVIOR
US6159244A (en) 1999-07-30 2000-12-12 Suddaby; Loubert Expandable variable angle intervertebral fusion implant
US6206923B1 (en) 1999-01-08 2001-03-27 Sdgi Holdings, Inc. Flexible implant using partially demineralized bone
EP1217961B1 (en) * 1999-01-25 2010-04-21 Warsaw Orthopedic, Inc. Instrument for creating an intervertebral space for receiving an implant
US6325827B1 (en) 1999-02-01 2001-12-04 Blacksheep Technologies, Inc. Intervertebral implant
US6648895B2 (en) 2000-02-04 2003-11-18 Sdgi Holdings, Inc. Methods and instrumentation for vertebral interbody fusion
US6368350B1 (en) * 1999-03-11 2002-04-09 Sulzer Spine-Tech Inc. Intervertebral disc prosthesis and method
US6478805B1 (en) * 1999-04-16 2002-11-12 Nuvasive, Inc. System for removing cut tissue from the inner bore of a surgical instrument
US6224599B1 (en) * 1999-05-19 2001-05-01 Matthew G. Baynham Viewable wedge distractor device
US6491724B1 (en) 1999-08-13 2002-12-10 Bret Ferree Spinal fusion cage with lordosis correction
US6419705B1 (en) 1999-06-23 2002-07-16 Sulzer Spine-Tech Inc. Expandable fusion device and method
AU5701200A (en) 1999-07-02 2001-01-22 Petrus Besselink Reinforced expandable cage
FR2797179B1 (en) 1999-08-03 2002-03-08 Michel Gau INTERVERTEBRAL NUCLEAR PROSTHESIS AND SURGICAL IMPLANTATION METHOD
US6200322B1 (en) * 1999-08-13 2001-03-13 Sdgi Holdings, Inc. Minimal exposure posterior spinal interbody instrumentation and technique
US20040249461A1 (en) 1999-08-13 2004-12-09 Ferree Bret A. Coupled artificial disc replacements methods and apparatus
FR2799638B1 (en) * 1999-10-14 2002-08-16 Fred Zacouto FIXATOR AND VERTEBRAL JOINT
US6277122B1 (en) 1999-10-15 2001-08-21 Sdgi Holdings, Inc. Distraction instrument with fins for maintaining insertion location
CA2386504C (en) * 1999-10-22 2008-07-15 Mark A. Reiley Facet arthroplasty devices and methods
US6974478B2 (en) * 1999-10-22 2005-12-13 Archus Orthopedics, Inc. Prostheses, systems and methods for replacement of natural facet joints with artificial facet joint surfaces
US6811567B2 (en) 1999-10-22 2004-11-02 Archus Orthopedics Inc. Facet arthroplasty devices and methods
EP1233711B1 (en) * 1999-12-01 2006-08-23 Henry Graf Intervertebral stabilising device
TW447286U (en) 1999-12-10 2001-07-21 Lin Jr Yi Intervertebral restorer
US7066957B2 (en) * 1999-12-29 2006-06-27 Sdgi Holdings, Inc. Device and assembly for intervertebral stabilization
US6447512B1 (en) * 2000-01-06 2002-09-10 Spinal Concepts, Inc. Instrument and method for implanting an interbody fusion device
US6500205B1 (en) * 2000-04-19 2002-12-31 Gary K. Michelson Expandable threaded arcuate interbody spinal fusion implant with cylindrical configuration during insertion
US6709458B2 (en) * 2000-02-04 2004-03-23 Gary Karlin Michelson Expandable push-in arcuate interbody spinal fusion implant with tapered configuration during insertion
EP1645248B8 (en) * 2000-02-04 2010-06-16 Warsaw Orthopedic, Inc. Expandable interbody spinal fusion implant having pivotally attached blocker
ATE390100T1 (en) * 2000-02-22 2008-04-15 Warsaw Orthopedic Inc SPINAL IMPLANT AND INTRODUCTION DEVICE
US20020133155A1 (en) 2000-02-25 2002-09-19 Ferree Bret A. Cross-coupled vertebral stabilizers incorporating spinal motion restriction
FR2805733B1 (en) * 2000-03-03 2002-06-07 Scient X DISC PROSTHESIS FOR CERVICAL VERTEBRUS
US6514260B1 (en) * 2000-03-15 2003-02-04 Sdgi Holdings, Inc. Methods and instruments for laparoscopic spinal surgery
US6402750B1 (en) 2000-04-04 2002-06-11 Spinlabs, Llc Devices and methods for the treatment of spinal disorders
US6251112B1 (en) 2000-04-18 2001-06-26 Roger P. Jackson Thin profile closure cap for open ended medical implant
WO2001089428A2 (en) * 2000-05-25 2001-11-29 Neurortho Implants Design, Llc Inter-vertebral disc prosthesis for rachis for an anterior surgery thereof
US6641582B1 (en) 2000-07-06 2003-11-04 Sulzer Spine-Tech Inc. Bone preparation instruments and methods
US6610093B1 (en) * 2000-07-28 2003-08-26 Perumala Corporation Method and apparatus for stabilizing adjacent vertebrae
ATE547999T1 (en) * 2000-08-25 2012-03-15 Cleveland Clinic Foundation IMPLANTABLE DEVICE FOR EVALUATION OF STRESSES TO ADJACENT PAIRS OF VERTEBRATE
EP1576938B1 (en) * 2000-10-11 2006-08-02 Michael D. Mason Spinal fusion device
US6723128B2 (en) * 2000-10-17 2004-04-20 Chang Jong Uk Prosthetic device for correcting deformity of spine
US6599291B1 (en) 2000-10-20 2003-07-29 Sdgi Holdings, Inc. Methods and instruments for interbody surgical techniques
US6579319B2 (en) 2000-11-29 2003-06-17 Medicinelodge, Inc. Facet joint replacement
US6454807B1 (en) 2000-11-30 2002-09-24 Roger P. Jackson Articulated expandable spinal fusion cage system
US6443989B1 (en) 2000-12-04 2002-09-03 Roger P. Jackson Posterior expandable fusion cage
US6773460B2 (en) 2000-12-05 2004-08-10 Roger P. Jackson Anterior variable expandable fusion cage
FR2817929B1 (en) * 2000-12-07 2003-03-21 Spine Next Sa DEVICE FOR FIXING A ROD AND A SPHERICAL SYMMETRY SCREW HEAD
US6565605B2 (en) * 2000-12-13 2003-05-20 Medicinelodge, Inc. Multiple facet joint replacement
US6419703B1 (en) 2001-03-01 2002-07-16 T. Wade Fallin Prosthesis for the replacement of a posterior element of a vertebra
US6743257B2 (en) 2000-12-19 2004-06-01 Cortek, Inc. Dynamic implanted intervertebral spacer
US7153304B2 (en) 2000-12-29 2006-12-26 Zimmer Trabecular Metal Technology, Inc. Instrument system for preparing a disc space between adjacent vertebral bodies to receive a repair device
US6986772B2 (en) * 2001-03-01 2006-01-17 Michelson Gary K Dynamic lordotic guard with movable extensions for creating an implantation space posteriorly in the lumbar spine
US6576017B2 (en) 2001-02-06 2003-06-10 Sdgi Holdings, Inc. Spinal implant with attached ligament and methods
US6673113B2 (en) * 2001-10-18 2004-01-06 Spinecore, Inc. Intervertebral spacer device having arch shaped spring elements
US6989032B2 (en) * 2001-07-16 2006-01-24 Spinecore, Inc. Artificial intervertebral disc
US7371238B2 (en) 2001-02-16 2008-05-13 Queen's University At Kingston Method and device for treating scoliosis
US7090698B2 (en) 2001-03-02 2006-08-15 Facet Solutions Method and apparatus for spine joint replacement
US6849093B2 (en) 2001-03-09 2005-02-01 Gary K. Michelson Expansion constraining member adapted for use with an expandable interbody spinal fusion implant and method for use thereof
DE10116412C1 (en) 2001-04-02 2003-01-16 Ulrich Gmbh & Co Kg Implant to be inserted between the vertebral body of the spine
WO2002080823A1 (en) 2001-04-04 2002-10-17 Rapp Lawrence G Interbody spinal fusion device
US6974480B2 (en) 2001-05-03 2005-12-13 Synthes (Usa) Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
FR2824261B1 (en) 2001-05-04 2004-05-28 Ldr Medical INTERVERTEBRAL DISC PROSTHESIS AND IMPLEMENTATION METHOD AND TOOLS
US7186256B2 (en) 2001-06-04 2007-03-06 Warsaw Orthopedic, Inc. Dynamic, modular, single-lock anterior cervical plate system having assembleable and movable segments
DE10135771B4 (en) 2001-07-23 2006-02-16 Aesculap Ag & Co. Kg Facet joint implant
EP1281361A1 (en) 2001-08-02 2003-02-05 Lafitt, S.A. Device to prevent intervertebral disk degeneration
US6648917B2 (en) * 2001-10-17 2003-11-18 Medicinelodge, Inc. Adjustable bone fusion implant and method
US20030139812A1 (en) 2001-11-09 2003-07-24 Javier Garcia Spinal implant
FR2832054B1 (en) 2001-11-15 2004-09-10 Rene Louis POSTERIOR VERTEBRAL JOINT PROSTHESIS
US7025787B2 (en) * 2001-11-26 2006-04-11 Sdgi Holdings, Inc. Implantable joint prosthesis and associated instrumentation
FR2832917B1 (en) 2001-11-30 2004-09-24 Spine Next Sa ELASTICALLY DEFORMABLE INTERVERTEBRAL IMPLANT
US6572653B1 (en) * 2001-12-07 2003-06-03 Rush E. Simonson Vertebral implant adapted for posterior insertion
US7052515B2 (en) 2001-12-07 2006-05-30 Simonson Rush E Vertebral implant with dampening matrix adapted for posterior insertion
US7485134B2 (en) 2001-12-07 2009-02-03 Simonson Rush E Vertebral implants adapted for posterior insertion
US6740118B2 (en) 2002-01-09 2004-05-25 Sdgi Holdings, Inc. Intervertebral prosthetic joint
US7011684B2 (en) 2002-01-17 2006-03-14 Concept Matrix, Llc Intervertebral disk prosthesis
FR2836373B1 (en) 2002-02-26 2005-03-25 Materiel Orthopedique En Abreg CONNECTING INTERSOMATIC IMPLANTS FOR INSERTING BONE GRAFT FOR REALIZING INTERVERTEBRAL FUSION, INSTRUMENTS FOR CONNECTING THESE IMPLANTS
US6893464B2 (en) 2002-03-05 2005-05-17 The Regents Of The University Of California Method and apparatus for providing an expandable spinal fusion cage
US6669729B2 (en) 2002-03-08 2003-12-30 Kingsley Richard Chin Apparatus and method for the replacement of posterior vertebral elements
RU2303422C2 (en) 2002-03-12 2007-07-27 Сервитек Инк. Intervertebral prosthesis and system of intervertebral prostheses, in peculiar case, for cervical department of vertebral column
US8038713B2 (en) * 2002-04-23 2011-10-18 Spinecore, Inc. Two-component artificial disc replacements
US20080027548A9 (en) * 2002-04-12 2008-01-31 Ferree Bret A Spacerless artificial disc replacements
US20040030390A1 (en) * 2002-04-23 2004-02-12 Ferree Bret A. Intradiscal component installation apparatus and methods
US6706068B2 (en) 2002-04-23 2004-03-16 Bret A. Ferree Artificial disc replacements with natural kinematics
US7156848B2 (en) 2002-04-24 2007-01-02 Ferree Bret A Check reins for artificial disc replacements
US20040030391A1 (en) * 2002-04-24 2004-02-12 Bret Ferree Artificial intervertebral disc spacers
US7179294B2 (en) 2002-04-25 2007-02-20 Warsaw Orthopedic, Inc. Articular disc prosthesis and method for implanting the same
US7338525B2 (en) * 2002-04-30 2008-03-04 Ferree Bret A Methods and apparatus for preventing the migration of intradiscal devices
US20050261773A1 (en) 2002-05-15 2005-11-24 Ferree Bret A Lateral-approach artificial disc replacements
US8388684B2 (en) 2002-05-23 2013-03-05 Pioneer Signal Technology, Inc. Artificial disc device
US7674297B2 (en) * 2002-06-14 2010-03-09 U.S. Spinal Technologies, Llc Anatomic vertebral cage
US6770095B2 (en) 2002-06-18 2004-08-03 Depuy Acroned, Inc. Intervertebral disc
US7070598B2 (en) 2002-06-25 2006-07-04 Sdgi Holdings, Inc. Minimally invasive expanding spacer and method
EP1534194A2 (en) 2002-06-26 2005-06-01 Nuvasive, Inc. Total disc replacement system and related methods
AU2003204781A1 (en) * 2002-06-26 2004-01-22 Depuy Acromed, Inc. Endplate shaping device
US6793678B2 (en) * 2002-06-27 2004-09-21 Depuy Acromed, Inc. Prosthetic intervertebral motion disc having dampening
DE10236691B4 (en) * 2002-08-09 2005-12-01 Biedermann Motech Gmbh Dynamic stabilization device for bones, in particular for vertebrae
BR0313502A (en) 2002-08-15 2005-07-12 Justin K Coppes Intervertebral disc
US7044971B2 (en) 2002-08-30 2006-05-16 Loubert Suddaby Lordotic fusion implant
US6899735B2 (en) * 2002-10-02 2005-05-31 Sdgi Holdings, Inc. Modular intervertebral prosthesis system
DE10247762A1 (en) 2002-10-14 2004-04-22 Waldemar Link (Gmbh & Co.) Intervertebral prosthesis
US7267688B2 (en) 2002-10-22 2007-09-11 Ferree Bret A Biaxial artificial disc replacement
US7232463B2 (en) 2002-10-23 2007-06-19 U.S. Spinal Technologies, Llc Intervertebral cage designs
US7083649B2 (en) 2002-10-29 2006-08-01 St. Francis Medical Technologies, Inc. Artificial vertebral disk replacement implant with translating pivot point
US7833246B2 (en) * 2002-10-29 2010-11-16 Kyphon SÀRL Interspinous process and sacrum implant and method
US7497859B2 (en) 2002-10-29 2009-03-03 Kyphon Sarl Tools for implanting an artificial vertebral disk
US6685742B1 (en) * 2002-11-12 2004-02-03 Roger P. Jackson Articulated anterior expandable spinal fusion cage system
US6974479B2 (en) 2002-12-10 2005-12-13 Sdgi Holdings, Inc. System and method for blocking and/or retaining a prosthetic spinal implant
US6994727B2 (en) * 2002-12-17 2006-02-07 Amedica Corporation Total disc implant
US20040186577A1 (en) * 2003-01-29 2004-09-23 Ferree Bret A. In situ artificaial disc replacements and other prosthetic components
US20040158254A1 (en) 2003-02-12 2004-08-12 Sdgi Holdings, Inc. Instrument and method for milling a path into bone
US20040162562A1 (en) 2003-02-13 2004-08-19 Osteotech, Inc. Instrumentation system for treating end plates of adjacent vertebrae
US7094257B2 (en) 2003-02-14 2006-08-22 Zimmer Spine, Inc. Expandable intervertebral implant cage
US20040176764A1 (en) 2003-03-03 2004-09-09 Centerpulse Spine-Tech, Inc. Apparatus and method for spinal distraction using a flip-up portal
US6908484B2 (en) 2003-03-06 2005-06-21 Spinecore, Inc. Cervical disc replacement
AU2004220634B2 (en) 2003-03-06 2009-09-17 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US7270679B2 (en) 2003-05-30 2007-09-18 Warsaw Orthopedic, Inc. Implants based on engineered metal matrix composite materials having enhanced imaging and wear resistance
US7811329B2 (en) * 2003-07-31 2010-10-12 Globus Medical Transforaminal prosthetic spinal disc replacement and methods thereof
US7022138B2 (en) * 2003-07-31 2006-04-04 Mashburn M Laine Spinal interbody fusion device and method
US7621956B2 (en) * 2003-07-31 2009-11-24 Globus Medical, Inc. Prosthetic spinal disc replacement
US7785351B2 (en) 2003-08-05 2010-08-31 Flexuspine, Inc. Artificial functional spinal implant unit system and method for use
US7753958B2 (en) 2003-08-05 2010-07-13 Gordon Charles R Expandable intervertebral implant
US7794465B2 (en) 2003-09-10 2010-09-14 Warsaw Orthopedic, Inc. Artificial spinal discs and associated implantation instruments and methods
US20050065516A1 (en) 2003-09-24 2005-03-24 Tae-Ahn Jahng Method and apparatus for flexible fixation of a spine
US7641701B2 (en) * 2003-09-30 2010-01-05 X-Spine Systems, Inc. Spinal fusion system and method for fusing spinal bones
US7655012B2 (en) * 2003-10-02 2010-02-02 Zimmer Spine, Inc. Methods and apparatuses for minimally invasive replacement of intervertebral discs
DE20315611U1 (en) * 2003-10-08 2003-12-11 Aesculap Ag & Co. Kg Intervertebral implant
MXPA06004374A (en) 2003-10-20 2006-07-06 Blackstone Medical Inc Vertebral body replacement apparatus and method.
US7217293B2 (en) 2003-11-21 2007-05-15 Warsaw Orthopedic, Inc. Expandable spinal implant
US20050283237A1 (en) 2003-11-24 2005-12-22 St. Francis Medical Technologies, Inc. Artificial spinal disk replacement device with staggered vertebral body attachments
US20050154462A1 (en) 2003-12-02 2005-07-14 St. Francis Medical Technologies, Inc. Laterally insertable artificial vertebral disk replacement implant with translating pivot point
FR2864763B1 (en) 2004-01-07 2006-11-24 Scient X PROSTHETIC DISCALE FOR VERTEBRATES
US20050149196A1 (en) 2004-01-07 2005-07-07 St. Francis Medical Technologies, Inc. Artificial spinal disk replacement device with rotation limiter and lateral approach implantation method
US20050154467A1 (en) * 2004-01-09 2005-07-14 Sdgi Holdings, Inc. Interconnected spinal device and method
US7771479B2 (en) 2004-01-09 2010-08-10 Warsaw Orthopedic, Inc. Dual articulating spinal device and method
US7901459B2 (en) 2004-01-09 2011-03-08 Warsaw Orthopedic, Inc. Split spinal device and method
US20050171608A1 (en) * 2004-01-09 2005-08-04 Sdgi Holdings, Inc. Centrally articulating spinal device and method
US7556651B2 (en) * 2004-01-09 2009-07-07 Warsaw Orthopedic, Inc. Posterior spinal device and method
US7875077B2 (en) * 2004-01-09 2011-01-25 Warsaw Orthopedic, Inc. Support structure device and method
US20050165484A1 (en) 2004-01-22 2005-07-28 Ferree Bret A. Artificial disc replacement (ADR) fixation methods and apparatus
US20050165407A1 (en) 2004-01-23 2005-07-28 Diaz Robert L. Disk arthroplasty instrumentation and implants
US8070816B2 (en) * 2004-03-29 2011-12-06 3Hbfm, Llc Arthroplasty spinal prosthesis and insertion device
US7282065B2 (en) * 2004-04-09 2007-10-16 X-Spine Systems, Inc. Disk augmentation system and method
US7531002B2 (en) 2004-04-16 2009-05-12 Depuy Spine, Inc. Intervertebral disc with monitoring and adjusting capabilities
US20050256576A1 (en) 2004-05-13 2005-11-17 Moskowitz Nathan C Artificial expansile total lumbar and thoracic discs for posterior placement without supplemental instrumentation and its adaptation for anterior placement of artificial cervical, thoracic and lumbar discs
EP1748737A4 (en) 2004-05-27 2009-06-17 Depuy Spine Inc Tri-joint implant
US7351261B2 (en) * 2004-06-30 2008-04-01 Depuy Spine, Inc. Multi-joint implant
DE202004015198U1 (en) 2004-09-24 2004-11-25 Aesculap Ag & Co. Kg Intervertebral implant system, includes facette joint implant with two parts for cooperating with adjacent vertebrae bodies
US20060069438A1 (en) * 2004-09-29 2006-03-30 Zucherman James F Multi-piece artificial spinal disk replacement device with multi-segmented support plates
US7481840B2 (en) * 2004-09-29 2009-01-27 Kyphon Sarl Multi-piece artificial spinal disk replacement device with selectably positioning articulating element
US20060085076A1 (en) * 2004-10-15 2006-04-20 Manoj Krishna Posterior spinal arthroplasty-development of a new posteriorly inserted artificial disc and an artificial facet joint
US20060247650A1 (en) 2004-12-13 2006-11-02 St. Francis Medical Technologies, Inc. Inter-cervical facet joint fusion implant
EP1685811A1 (en) 2005-01-26 2006-08-02 Cervitech, Inc. Cervical intervertebral prostheses
US8911498B2 (en) 2005-02-10 2014-12-16 DePuy Synthes Products, LLC Intervertebral prosthetic disc
US7635389B2 (en) 2006-01-30 2009-12-22 Warsaw Orthopedic, Inc. Posterior joint replacement device
US7811326B2 (en) 2006-01-30 2010-10-12 Warsaw Orthopedic Inc. Posterior joint replacement device
US20070270862A1 (en) 2006-03-30 2007-11-22 Sdgi Holdings, Inc. Instruments and methods for preparing an intervertebral space
US20080027547A1 (en) * 2006-07-27 2008-01-31 Warsaw Orthopedic Inc. Prosthetic device for spinal joint reconstruction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050171610A1 (en) * 2004-01-09 2005-08-04 Sdgi Holdings, Inc. Mobile bearing spinal device and method
US20050256578A1 (en) * 2004-05-11 2005-11-17 Geoffrey Blatt Artificial spinal disc, insertion tool, and method of insertion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011509747A (en) * 2008-01-16 2011-03-31 ウォーソー・オーソペディック・インコーポレーテッド Joint replacement device

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DE602007012659D1 (en) 2011-04-07
US20070179616A1 (en) 2007-08-02
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US7811326B2 (en) 2010-10-12
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KR20080093143A (en) 2008-10-20
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