WO2006020464B1 - Replacement facet joint and method - Google Patents

Replacement facet joint and method

Info

Publication number
WO2006020464B1
WO2006020464B1 PCT/US2005/027469 US2005027469W WO2006020464B1 WO 2006020464 B1 WO2006020464 B1 WO 2006020464B1 US 2005027469 W US2005027469 W US 2005027469W WO 2006020464 B1 WO2006020464 B1 WO 2006020464B1
Authority
WO
WIPO (PCT)
Prior art keywords
flat
prosthesis
slightly curvilinear
mounting portion
joined
Prior art date
Application number
PCT/US2005/027469
Other languages
French (fr)
Other versions
WO2006020464A2 (en
WO2006020464A8 (en
WO2006020464A3 (en
Inventor
Kevin T Foley
Original Assignee
Sasso Ricardo
Kevin T Foley
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 Sasso Ricardo, Kevin T Foley filed Critical Sasso Ricardo
Priority to AU2005274043A priority Critical patent/AU2005274043B2/en
Priority to CA2579570A priority patent/CA2579570C/en
Priority to JP2007525663A priority patent/JP2008509735A/en
Priority to EP05782738.8A priority patent/EP1799132B1/en
Publication of WO2006020464A2 publication Critical patent/WO2006020464A2/en
Publication of WO2006020464A3 publication Critical patent/WO2006020464A3/en
Publication of WO2006020464B1 publication Critical patent/WO2006020464B1/en
Publication of WO2006020464A8 publication Critical patent/WO2006020464A8/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4405—Joints for the spine, e.g. vertebrae, spinal discs for apophyseal or facet joints, i.e. between adjacent spinous or transverse processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
    • A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/08—Muscles; Tendons; Ligaments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30756—Cartilage endoprostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30159—Concave polygonal shapes
    • A61F2002/30168—L-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
    • A61F2002/30685—Means for reducing or preventing the generation of wear particulates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/0043—L-shaped

Abstract

Prostheses and methods for repair of a cervical fact joint. The articulating surfaces of the natural facets of the facet joint are removed only a sufficient amount to allow the insertion of flat or slightly curvilinear portions of protheses therebetween in an overlapping relationship. The portions are so inserted and the prostheses mounted by attachment to adjacent vertebrae. Also, a single natural facet may be similarly repaired with a single prosthesis.

Claims

AMENDED CLAIMS received by the International Bureau on 20 November 2006 (20.11.2006)
1. A prosthesis for the repair of a cervical facet joint comprising: a superior component having a first substantially flat or slightly curvilinear portion and a mounting portion; an inferior component having a second substantially flat or slightly curvilinear portion and a mounting portion; said mounting portions being adapted for connection to adjacent cervical vertebrae with said first and second portions articulating with each other between the facets of the adjacent cervical vertebrae.
2. The prosthesis of claim 1 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of about
45°.
3. The prosthesis of claim 1 wherein said second flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of about 135°.
4. The prosthesis of claim 3 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of about 45°.
5. The prosthesis of claim 1 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of 45°.
6. The prosthesis of claim 1 wherein said second flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of 135°.
7. The prosthesis of claim 6 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of 45°.
8. The prosthesis of claim 1 additionally comprising a first bone anchor member for attaching said superior component to a first vertebra, a second bone anchor member for attaching said inferior component to a second vertebra and a flexible tethering system connecting said first bone anchor and said second bone anchor.
9. The prosthesis of claim 8, wherein said flexible tethering system comprises a flexible elongated member secured to said first bone anchor member and to said second bone anchor member.
10. The prosthesis of claim 9 wherein said first and second bone anchor members are screws.
11. A prosthesis for the repair of a cervical facet joint comprising: a component having a substantially flat or slightly curvilinear portion and a mounting portion, said substantially flat or slightly curvilinear portion being adapted for replacing the articulating surface of one of the facets of the articulating facet joint between two adjacent cervical vertebrae.
12. The prosthesis of claim 11 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 45°.
13. The prosthesis of claim 11 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of 45°.
14. The prosthesis of claim 11 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 135°.
15. The prosthesis of claim 11 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of 135°.
16
16. A method for repairing a cervical facet joint of adjacent vertebrae comprising:
(a) providing a superior component having a first substantially flat or slightly curvilinear portion and a mounting portion,
(b) providing an inferior component having a second substantially flat or slightly curvilinear portion and a mounting portion,
(c) removing the articulating surfaces of the facets of the facet joint only a sufficient amount to allow the insertion of said flat or slightly curvilinear portions therebetween in an overlapping relationship,
(d) inserting said flat portions between the facets with the flat or slightly curvilinear portions in an overlapping relationship,
(e) and securing the component to the adjacent vertebrae by attaching the mounting portions to the posterior arches of the adjacent vertebrae.
17. The method of claim 16 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of about 45°.
18. The method of claim 16 wherein said second flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of about 135°.
19. The method of claim 18 wherein said first flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of about 45°
20. The method of claim 16 wherein said first flat or slightly curvilinear portion is joined to said superior mounting portion at an angle of 45°.
21. The method of claim 16 wherein said second flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of 135°.
17
22. The method of claim 21 wherein said first flat or slightly curvilinear portion is joined to said inferior mounting portion at an angle of 45°.
23. A method for repairing a cervical facet joint between a first vertebra and a second vertebra comprising:
(a) providing a component having a substantially flat or slightly curvilinear portion and a mounting portion,
(b) removing the natural facet surface of the first vertebra only a sufficient amount to allow the insertion of said flat or slightly curvilinear portion into overlapping relationship with the natural facet surface of the second vertebra,
(c) inserting said flat portion into overlapping relationship with the natural facet surface of the second vertebra, and;
(d) securing the component to the first vertebra by attaching the mounting portion to the posterior arch of the first vertebra.
24. The method of claim 23 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 45°.
25. The method of claim 23 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of 45°.
26. The method of claim 23 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 135°.
27. The method of claim 23 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of 135°.
28. A prosthesis for the repair of a cervical facet joint comprising: a component having a substantially flat or slightly curvilinear portion and a mounting portion, said substantially flat or slightly curvilinear portion being adapted for replacing the articulating surface of one of the facets of the articulating facet joint between two adjacent cervical vertebrae; and
18 a bone anchor member configured for placement in a vertebra for attaching said component to the vertebra, wherein said bone anchor member can be selectively oriented in at least two positions relative to said component when attaching said component to the vertebra.
29. The prosthesis of claim 28 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 45°.
30. The prosthesis of claim 28 wherein said flat or slightly curvilinear portion is joined to said mounting portion at an angle of about 135°.
31. A prosthesis for the repair of a cervical facet joint comprising: a superior component having a first substantially flat or slightly curvilinear portion and a mounting portion; an inferior component having a second substantially flat or slightly curvilinear portion and a mounting portion; a first bone anchor member for attaching said superior component to a first vertebra; a second bone anchor member for attaching said inferior component to a second vertebra; and a flexible tethering system connecting said first bone anchor and said second bone anchor, said mounting portions being adapted for connection to adjacent cervical vertebrae with said first and second portions articulating with each other between the facets of the adjacent cervical vertebrae, wherein said first bone anchor member can be selectively oriented in at least two positions relative to said superior component when attaching said superior component to the first vertebra, wherein said second bone anchor member can be selectively oriented in at least two positions relative to said inferior component when attaching said inferior component to the second vertebra.
19
32. The prosthesis of claim 11, wherein said flat or slightly curvilinear portion is comprised of one or more of the same materials as said mounting portion.
33. The prosthesis of claim 11, wherein said flat or slightly curvilinear portion is comprised of one or more different materials than said mounting portion.
34. The prosthesis of claim 33, wherein said flat or slightly curvilinear portion is comprised of one or more of the same materials as said mounting portion.
35. The prosthesis of claim 11 , wherein at least one of said flat or slightly curvilinear portion and said mounting portion comprises a metallic material.
36. The prosthesis of claim 11, wherein at least one of said flat or slightly curvilinear portion and said mounting portion comprises a polymeric material.
37. The prosthesis of claim 11, wherein at least one of said flat or slightly curvilinear portion and said mounting portion comprises a ceramic material.
38. The prosthesis of claim 11 , further comprising a coating material coating a surface of said component.
39. The prosthesis of claim 38, wherein said coating material coats a surface of said flat or slightly curvilinear portion.
40. The prosthesis of claim 38, wherein said coating material coats a surface of said mounting portion.
20
41. The prosthesis of claim 39, wherein said coating material is comprised of biologic material.
42. The prosthesis of claim 11, wherein said flat or slightly curvilinear portion is comprised of biologic material.
43. The prosthesis of claim 42, wherein said flat or slightly curvilinear portion is comprised of cartilage.
21
PCT/US2005/027469 2004-08-13 2005-08-03 Replacement facet joint and method WO2006020464A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2005274043A AU2005274043B2 (en) 2004-08-13 2005-08-03 Replacement facet joint and method
CA2579570A CA2579570C (en) 2004-08-13 2005-08-03 Replacement facet joint and method
JP2007525663A JP2008509735A (en) 2004-08-13 2005-08-03 Small joint surface joint for replacement and method therefor
EP05782738.8A EP1799132B1 (en) 2004-08-13 2005-08-03 Replacement facet joint

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/918,541 2004-08-13
US10/918,541 US7846184B2 (en) 2004-08-13 2004-08-13 Replacement facet joint and method
US11/195,057 2005-08-02

Publications (4)

Publication Number Publication Date
WO2006020464A2 WO2006020464A2 (en) 2006-02-23
WO2006020464A3 WO2006020464A3 (en) 2006-12-28
WO2006020464B1 true WO2006020464B1 (en) 2007-02-08
WO2006020464A8 WO2006020464A8 (en) 2007-05-03

Family

ID=35800961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/027469 WO2006020464A2 (en) 2004-08-13 2005-08-03 Replacement facet joint and method

Country Status (7)

Country Link
US (2) US7846184B2 (en)
EP (1) EP1799132B1 (en)
JP (1) JP2008509735A (en)
CN (1) CN101043852A (en)
AU (1) AU2005274043B2 (en)
CA (1) CA2579570C (en)
WO (1) WO2006020464A2 (en)

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