WO1997030661A1 - Trial wedges with magnetic attachments - Google Patents
Trial wedges with magnetic attachments Download PDFInfo
- Publication number
- WO1997030661A1 WO1997030661A1 PCT/US1997/002805 US9702805W WO9730661A1 WO 1997030661 A1 WO1997030661 A1 WO 1997030661A1 US 9702805 W US9702805 W US 9702805W WO 9730661 A1 WO9730661 A1 WO 9730661A1
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- WO
- WIPO (PCT)
- Prior art keywords
- trial
- joint replacement
- wedges
- orthopaedic joint
- surgical orthopaedic
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1668—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1659—Surgical rasps, files, planes, or scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1735—Guides or aligning means for drills, mills, pins or wires for rasps or chisels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- 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
- A61F2/30721—Accessories
- A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
-
- 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
- A61F2/38—Joints for elbows or knees
-
- 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
- A61F2/38—Joints for elbows or knees
- A61F2/3859—Femoral components
-
- 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
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30079—Properties of materials and coating materials magnetic
-
- 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
-
- 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
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
-
- 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
- A61F2/30721—Accessories
- A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
- A61F2002/30736—Augments or augmentation pieces, e.g. wedges or blocks for bridging a bone defect
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3652—Connections of necks to shafts
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
Definitions
- U.S. Patent 5,425,763 discloses a magnet arrangement for fastening prostheses, in particular epitheses, such as for example artificial ears and the like.
- a magnet arrangement for the fastening of prostheses in which a magnet can be inserted into a prosthesis and a magnet to be implanted or to be fastened on an implant are provided.
- a guide by which the two magnets are guided one on the other in such a manner that they are displaceable telescopically relative to one another in the holding direction of the prosthesis is also provided, to achieve a more reliable mounting during a displacement movement of the prosthesis.
- An artificial joint with magnetic attraction or repulsion is the subject of U.S. Patent 4,024,588.
- the 588 patent discloses an artificial joint for implantation into the living body. It comprises a head portion adapted to be anchored in one bone of the body and a socket portion adapted to be anchored in another bone.
- One of the head and socket portions includes a permanent magnet and the other portion ei her a magnetizable element or another permanent magnet.
- the two interacting magnetic elements may be polarized for either attraction or 5 repulsion.
- the head and socket portions are shaped to permit translatory movement relative to each other in addition to rotary movements of the head portion about at least one axis of rotation.
- the present invention provides a magnetic orthopaedic trial apparatus that enables trial wedges to be easily attached to trial components (e.g., femoral components, tibial components, hip replacement components), cutting blocks or 0 other instruments that are used during total knee or total hip replacement surgery.
- trial components e.g., femoral components, tibial components, hip replacement components
- cutting blocks or 0 other instruments that are used during total knee or total hip replacement surgery.
- the present invention provides a surgical orthopaedic joint replacement trial instrument that includes a trial body having a stem portion that fits a patients intramedullary canal.
- a plurality of trial wedges removably attach to the trial body enabling a surgeon to vary the size and shape of the trial body such as during 5 the fitting of a trial to a patients femur or tibia tissue.
- At least some of the trial wedges have opposed surfaces that are generally parallel to one another.
- a magnetic member holds a selected of the trial wedges and the trial body together.
- the magnetic member is a magnet that is o embedded within each trial wedge.
- at least some of the trial wedges have opposed surfaces that define an acute angle.
- the trial body preferably has at least one flat surface that receives a correspondingly flat surface of a trial wedge.
- the trial body can have two spaced apart surfaces that enable a surgeon to attach two trial wedges simultaneously to the respective spaced apart surfaces of the trial body.
- Each of the spaced apart surfaces is preferably flat. At least some of the wedges are shaped to stack one upon the other. In this fashion, the surgeon can place a first wedge on one of the flat surfaces of the trial body. The surgeon can then place another trial wedge on a second flat surface of the trial body. Alternatively, the surgeon can place an additional trial wedge on top of one of the previously placed trial wedges so that at least two of the trial wedges are stacked one upon the other at one of the flat surfaces of the trial body.
- the trial body and at least some of the wedges are embossed with correspondingly shaped embossed surfaces to prevent rotation once a wedge is attached to a trial body.
- the trial body and at least some of the wedges have corresponding interlocking portions such as, for example, a cylindrically-shaped socket on the trial body and a correspondingly shaped cylindrical projection on the trial wedge.
- the interlocking portions can include interlocking socket and projecting portions that are correspondingly shaped.
- a collection of trial wedges are provided having differing thicknesses and differing shapes.
- the trial body can have an articulating surface portion for articulating with a corresponding articulating surface of another orthopaedic prosthetic component.
- the surgical orthopaedic joint replacement trial is in the fo ⁇ n of a tibial trial having a stem, a tibial tray, and trial wedges that are fixed to distal surfaces of the tray portion of the trial body.
- the trial instrument is in the form of a femoral trial component having trial wedges that affix to distal non-articulating surfaces of the trial body and to the posterior condylar non-articulating surface portions of the trial body.
- trial wedges can be sized and shaped to provided surfaces that simultaneously abut both the distal non-articulating surface and the condylar non-articulating surface of the trial body-
- a broach that is in the shape of a trial hip prosthesis that is sized and shaped to fit the patients proximal femur during hip joint replacement surgery.
- the trial hip replacement prosthesis is in the form of a broach having a proximal end that removably accepts a trial neck member wherein a plurality of the removable trial members provide different neck geometry, enabling the surgeon to vary the configuration of a trial that fits the patients proximal femur during hip joint replacement surgery.
- FIGURE 1 is a partial side view of the first embodiment of the apparatus of the present invention showing a trial femoral component
- FIGURE 2 is a partial side view of the first embodiment of the apparatus of the present invention showing a trial femoral component with a trial wedge attached;
- FIGURE 3 is a partial side view of the first embodiment of the apparatus of the present invention showing a trial femoral component with a pair of stacked trial wedges attached; -6-
- FIGURE 4 is a partial side view of the first embodiment of the apparatus of the present invention showing a trial femoral component with a pair of stacked trial wedges attached;
- FIGURE 5 is a perspective exploded view of the first embodiment of the apparatus of the present invention.
- FIGURE 6 is a fragmentary perspective view of the first embodiment of the apparatus of the present invention showing the stacking tray portion thereof;
- FIGURE 7 is a perspective view of the first embodiment of the apparatus of the present invention
- FIGURE 8 is a fragmentary top view of the first embodiment of the apparatus of the present invention illustrating a trial wedge that can be attached to the femoral trial body of Figures 1-4;
- FIGURE 9 is a fragmentary elevational view taken along lines 9-9 of Figure 8;
- FIGURE 10 is a sectional view taken along lines 10-10 of Figure 8;
- FIGURE 11 is a fragmentary top view of the first embodiment of the apparatus of the present invention illustrating a trial wedge that can be attached to the trial body of Figures 1-4;
- FIGURE 12 is a side elevational view taken along lines 12-12 of Figure 11;
- FIGURE 13 is an end, elevational view taken along lines 13-13 of Figure
- FIGURE 14 is a fragmentary top view of the first embodiment of the apparatus of the present invention illustrating a trial wedge that can be attached to the femoral trial body of Figures 1-4;
- FIGURE 15 is an end, elevational view taken along lines 15-15 of Figure
- FIGURE 19 is a fragmentary perspective view of the second embodiment of the apparatus of the present invention showing the tibial tray;
- FIGURE 20 is a fragmentary view of the second embodiment of the apparatus of the present invention illustrating the distal surface of the tibial trial body;
- FIGURE 22 is an end view taken along lines 22-22 of Figure 20;
- FIGURE 23 is a fragmentary top view of the second embodiment of the apparatus of the present invention illustrating one of the trial wedge portions thereof;
- FIGURE 24 is an end view taken along lines 24-24 of Figure 23;
- FIGURE 25 is a side view taken along lines 25-25 of Figure 23;
- FIGURE 25 A is a side view of a trial wedge portion of the second embodiment of the apparatus of the present invention.
- FIGURE 26 is a sectional view taken along lines 26-26 of Figure 23;
- FIGURE 27 is a fragmentary top view of the second embodiment of the apparatus of the present invention illustrating one of the trial wedge portions thereof;
- FIGURE 28 is an end view taken along lines 28-28 of Figure 27;
- FIGURE 28A is an end view of a trial wedge portion of the second embodiment of the apparatus of the present invention.
- FIGURE 29 is a side taken along lines 29-29 of Figure 27;
- FIGURE 30 is a plane, fragmentary top view of the second embodiment of the apparatus of the present invention illustrating one of the trial wedge portions thereof;
- FIGURE 31 is an end view taken along lines 31-31 of Figure 30;
- FIGURE 32 is an elevational view of the second embodiment of the apparatus of the present invention.
- FIGURE 33 is an elevational view of the second embodiment of the apparatus of the present invention.
- FIGURE 34 is a perspective view of the second embodiment of the apparatus of the present invention illustrating its use with a tibial wedge cutting block;
- FIGURE 35 is a partial perspective view of the second embodiment of the apparatus of the present invention illustrating the tibial wedge cutting block portion thereof and its handle;
- FIGURE 36 is a side elevational view of the second embodiment of the apparatus of the present invention shown attached to a tibial wedge cutting guide and its handle;
- FIGURE 37 is a side view of a third embodiment of the apparatus of the present invention.
- FIGURE 38 is an exploded side view of the third embodiment of the apparatus of the present invention.
- FIGURE 39 is a side view of the third embodiment of the apparatus of the present invention with the removable neck portion removed;
- FIGURE 42 is a sectional view taken along lines 42-42 of Figure 37;
- FIGURE 43 is a perspective view of a fourth embodiment of the apparatus of the present invention.
- FIGURE 44 is a side view of the fourth embodiment of the apparatus of the present invention. DETAILED DESCRIPTION OF THE INVEN ⁇ ON
- Figures 1-4 show generally the preferred embodiment of the apparatus of the present invention designated by the numeral 10A in Figures 2-4, 5, and 7.
- Femoral trial prosthesis 10A includes a trial body 11 that is generally of a size and shape that corresponds to the shape of a final femoral prosthesis. A surgeon can use one or more such trials to obtain a correct fit Using the apparatus of the present invention and the method of the present invention, wedges can be added to the trial body 11 in order to compensate for bone loss and/or bone defect.
- Trial body 11 includes a distal articulating surface 12, an anterior articulating surface 13, and a posterior articulating surface 14 in the form of a pair of space-apart condylar portions.
- a plurality of five non-articulating surfaces are also provided on trial body 11 including flat non-articulating surfaces 15, 16, 17, 18, and 19. These five surfaces 15-19 correspond in size, shape, and positioning to surgical cuts that are made by a surgeon on a patients distal femur.
- Trial body 11 has sockets HA, 1 IB that are receptive of projecting portions of trial wedges 20, 30.
- two trial wedges 20 illustrate that further thickness can be provided to trial body 11 by stacking the two wedges 20 as shown.
- two differing wedges 20 and 30 are shown stacked upon the non-articulating surfaces 16, 17, 18, 19.
- the wedge 20 receives trial wedge 30, stacked thereon as shown in Figure 4.
- FIG. 5-7 an additional stacking member is shown in the form of stacking tray 100.
- the tray 100 has a stem portion 101 with a threaded end 102. This enables modular stem extensions to be threadably attached to the stacking tray 100 at threaded end 102.
- the tray 100 has a distal surface 104 that carries a pair of spaced apart cylindrically-shaped projections 105, 106. These projections 105, 106 register in correspondingly-shaped sockets 11 A, 1 IB of femoral trial 11.
- a magnetic member 29 is embedded within each trial wedge 115, 115 A, 116 as shown in Figures 14-16.
- the overall shape and configuration of each of the trial wedges 115, 115A, and 116 are substantially the same, the difference being in the increased thickness of the wedge 115A compared to the wedge 115 and the increased length of the wedge 115 when compared to the wedge 116.
- FIGS 18-19 show a second embodiment of the apparatus of the present invention designated generally by the numeral 10B in Figure 18.
- the embodiment of Figures 18 and 19 shows a tibial trial.
- the tibial trial includes a trial body tray 41 having a flat distal surface 42 that includes spaced apart flat surface areas 43, 44 to which magnetic trial wedges can be attached.
- a flat proximal surface 45 is provided that can receive a polymeric liner 52 (see Figures 32, 33).
- Stem 46 extends from distal surface 42 at angles thereto.
- the stem 46 can have a threaded portion 47 for attaching a modular stem extension thereto when the surgeon is attempting to obtain a proper fit with the patients proximal tibia during knee joint replacement surgery.
- the recess 60 is defined by intersecting shoulders 62 and 63.
- the cutout 61 is defined by intersecting shoulders 64 and 65.
- Each wedge 56, 56A has a peripheral curved surface 66 and a flat surface 67. Cutout 68 accommodates slot 55 as shown in Figures 18 and 20.
- the trial wedges 56 and 56A have flat surfaces 57, 58 that are opposed and generally parallel. This differs from the trial wedges 5 69, 69A of Figures 27-29 and 28A and the trial wedge 84 of Figures 30-31 that have opposed surfaces forming an acute angle.
- trial wedges of differing configuration are shown attached to the trial body 41.
- trial wedges 69 and 69A are shown 5 attached to the distal surface 42 of trial body 41.
- trial wedges 56 and 56A are shown attached to the distal surface 42 of trial body 41.
- Removable neck member 135 also has a rectangular section 143 that corresponds in size and shape to the rectangular slot 139 at proximal end 131 of broach member 130.
- the rectangular section 143 of removable neck section 135 fits into and closely conforms to slot 139 of broach member 130.
- the projecting portion 138 of broach member 130 conforms to and occupies cylindrically-shaped socket 137 of removable neck section 135. This connection is illustrated by the arrows 144 in Figure 38.
- the rectangular slot 139 has a flat surface portion 142 that forms a magnetic connection with magnet 140 that is embedded in socket 141 of removable neck section 135.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97915841A EP0888098A4 (en) | 1996-02-21 | 1997-02-21 | Trial wedges with magnetic attachments |
CA 2247195 CA2247195A1 (en) | 1996-02-21 | 1997-02-21 | Trial wedges with magnetic attachments |
JP52633997A JP2001503283A (en) | 1996-02-21 | 1997-02-21 | Trial wedge with magnetic mounting |
AU23166/97A AU2316697A (en) | 1996-02-21 | 1997-02-21 | Trial wedges with magnetic attachments |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1203096P | 1996-02-21 | 1996-02-21 | |
US60/013,030 | 1996-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997030661A1 true WO1997030661A1 (en) | 1997-08-28 |
Family
ID=21753054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/002805 WO1997030661A1 (en) | 1996-02-21 | 1997-02-21 | Trial wedges with magnetic attachments |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0888098A4 (en) |
JP (1) | JP2001503283A (en) |
AU (1) | AU2316697A (en) |
WO (1) | WO1997030661A1 (en) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2001028467A1 (en) * | 1999-10-20 | 2001-04-26 | Smith & Nephew, Inc. | Tibial trial system |
WO2001032106A1 (en) * | 1999-10-30 | 2001-05-10 | Eberhard-Karls-Universität Tübingen | Endoprosthesis |
US6974481B1 (en) | 1999-10-20 | 2005-12-13 | Smith & Nephew, Inc. | Tibial trial system |
US7306609B2 (en) | 1999-03-02 | 2007-12-11 | Plus Orthopedics Ag | Femoral slideway |
US20080215157A1 (en) * | 2007-03-01 | 2008-09-04 | Zimmer Technology, Inc. | Modular femoral provisional |
WO2009089581A1 (en) * | 2008-01-18 | 2009-07-23 | Atlax Pty Ltd | An augment for use in a knee replacement system and method of performing a knee replacement operation |
CN101972178A (en) * | 2010-11-25 | 2011-02-16 | 高若云 | Magnetic suspension artificial knee joint |
US7892288B2 (en) | 2001-08-27 | 2011-02-22 | Zimmer Technology, Inc. | Femoral augments for use with knee joint prosthesis |
US8187283B2 (en) | 2008-09-30 | 2012-05-29 | Depuy Products, Inc. | Reusable orthopaedic instrument having drain holes |
USD684693S1 (en) | 2002-08-22 | 2013-06-18 | Zimmer, Inc. | Prosthetic implant support structure |
US8506645B2 (en) | 2001-08-27 | 2013-08-13 | Zimmer, Inc. | Tibial augments for use with knee joint prostheses |
US8535385B2 (en) | 2001-08-27 | 2013-09-17 | Zimmer, Inc. | Prosthetic implant support structure |
US20140081408A1 (en) * | 2012-09-20 | 2014-03-20 | Jay R. Lieberman | Femoral knee prosthesis system with augments and multiple lengths of sleeves sharing a common geometry |
US8900317B2 (en) | 2011-05-20 | 2014-12-02 | Zimmer, Inc. | Stabilizing prosthesis support structure |
US9320603B2 (en) | 2012-09-20 | 2016-04-26 | Depuy (Ireland) | Surgical instrument system with multiple lengths of broaches sharing a common geometry |
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US20170172764A1 (en) * | 2015-04-03 | 2017-06-22 | Biomet Manufacturing, Llc | Glenoid trial and implant assembly for reverse total shoulder arthroplasty and method of use |
US20170333208A1 (en) * | 2016-05-18 | 2017-11-23 | Depuy Ireland Unlimited Company | System including femoral augment trials and method of performing an orthopaedic joint replacement procedure |
US10470898B2 (en) | 2016-05-18 | 2019-11-12 | Depuy Ireland Unlimited Company | Orthopaedic instrument system for surgically-preparing a patient's tibia |
US10537446B2 (en) | 2017-09-20 | 2020-01-21 | Depuy Ireland Unlimited Company | Method and instruments for assembling an orthopaedic prosthesis |
US10537440B2 (en) | 2016-05-18 | 2020-01-21 | Depuy Ireland Unlimited Company | Method of using an orthopaedic instrument system in surgically-preparing a patient's femur |
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US10543001B2 (en) | 2017-09-20 | 2020-01-28 | Depuy Ireland Unlimited Company | Method and instruments for assembling a femoral orthopaedic prosthesis |
US11083585B2 (en) | 2019-05-09 | 2021-08-10 | Howmedica Osteonics Corp. | Spring retained femoral augment |
US11141276B2 (en) | 2017-01-20 | 2021-10-12 | Biomet Manufacturing, Llc | Modular augment component |
US11266509B2 (en) * | 2017-11-30 | 2022-03-08 | Corentec Co., Ltd. | Anatomically shaped knee joint augment |
WO2022119777A1 (en) * | 2020-12-01 | 2022-06-09 | Encore Medical, L.P. DBA DJO Surgical | Knee replacement implant having stackable spacers |
US11439409B2 (en) | 2019-09-18 | 2022-09-13 | Depuy Ireland Unlimited Company | Cutting block |
US11826267B2 (en) | 2017-04-12 | 2023-11-28 | Depuy Ireland Unlimited Company | Femoral trialling kit and assembly |
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- 1997-02-21 EP EP97915841A patent/EP0888098A4/en not_active Withdrawn
- 1997-02-21 WO PCT/US1997/002805 patent/WO1997030661A1/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
---|---|
EP0888098A4 (en) | 2000-03-01 |
EP0888098A1 (en) | 1999-01-07 |
JP2001503283A (en) | 2001-03-13 |
AU2316697A (en) | 1997-09-10 |
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