EP0689406A1 - Endoprothese d'articulation du genou - Google Patents

Endoprothese d'articulation du genou

Info

Publication number
EP0689406A1
EP0689406A1 EP95904493A EP95904493A EP0689406A1 EP 0689406 A1 EP0689406 A1 EP 0689406A1 EP 95904493 A EP95904493 A EP 95904493A EP 95904493 A EP95904493 A EP 95904493A EP 0689406 A1 EP0689406 A1 EP 0689406A1
Authority
EP
European Patent Office
Prior art keywords
tibia
bearing surface
knee joint
shaped
bearing
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95904493A
Other languages
German (de)
English (en)
Inventor
Bruno E. Dr. Gerber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Synthes GmbH
Original Assignee
Plus Endoprothetik AG
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 Plus Endoprothetik AG filed Critical Plus Endoprothetik AG
Publication of EP0689406A1 publication Critical patent/EP0689406A1/fr
Withdrawn legal-status Critical Current

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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3868—Joints for elbows or knees with sliding tibial bearing
    • 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
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
    • A61B2017/922—Devices for impaction, impact element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
    • 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
    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting 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
    • A61F2002/30316—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
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
    • 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
    • A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Definitions

  • the invention relates to a knee-joint endoprosthesis with a femur part, a tibia part and a plastic bearing body arranged between the femur and tibia part, in particular polyethylene, the bearing body being supported on a spherical-shell-shaped bearing surface of the tibia part facing the femur part.
  • Such a knee joint endoprosthesis is known from US-A-4,224,696. This knee joint endoprosthesis allows both a rotary movement and a sliding movement of the
  • knee joint endoprostheses that only allow the bearing body to rotate relative to the tibia bearing surface, but no transverse displacement (TACK knee joint prosthesis system from aldemar Link GmbH & Co., Hamburg, prospectus 736 d-en 3.92) .
  • This knee joint prosthesis is a relatively uncomplicated one
  • the present invention is based on the object of further developing a knee joint endoprosthesis of the type mentioned at the outset in such a way that an exact rotation and longitudinal guidance is guaranteed. Furthermore, a "rocking out" of the bearing body beyond the tibia plate should be avoided.
  • the flexion resistance does not increase with increasing flexion or knee flexion.
  • the inclination of the tibial bearing surface according to the invention ensures that the flexion resistance remains relatively low even in the final phase of knee flexion or flexion, in particular in connection with a femur part with a radius that becomes increasingly smaller towards the rear.
  • Figure 1 is a front view of a knee joint endoprosthesis according to the invention in the inserted state.
  • FIG. 2 shows a side view of the knee joint endoprosthesis according to FIG. 1;
  • Figure 3 shows the tibia bearing surface in plan view.
  • FIG. 4 a top view of a bearing body made of plastic, in particular polyethylene, inserted between the femur part and the tibia part;
  • FIG. 5 shows the bearing body according to FIG. 4 in a front view, showing different heights and widths
  • FIGS. 4 ' and 5 shows the bearing body according to FIGS. 4 ' and 5 in
  • Fig. 7 shows a retaining screw for the bearing body according to FIGS. 4 to 6 on the tibia bearing surface
  • Fig. 8 shows an instrument for preparing the tibia for the implantation of the tibia part of the knee joint endoprosthesis according to the invention, in perspective
  • FIG. 9 shows a part of the instrument according to FIG. 8 in a perspective view
  • Fig. 10 is a side view of a tibial milling machine.
  • the knee joint endoprosthesis shown in FIGS. 1 and 2 consists of a femur part 10, tibia part 11, and a bearing body 12 made of plastic, in particular polyethylene, arranged between the femur and tibia part.
  • Femur part 10 and Tibia ⁇ part 11 are in a known manner by mandrels 13, 14 and 15 with the thigh or. Shin bone connected.
  • the femoral part further comprises a so-called femoral slide 16 with two convexly curved sliding surfaces 17, 18, which, in the implanted state, correspond to complementary concave sliding surfaces on the upper side of the bearing body 12 in such a way that a so-called roll-sliding surface between the bearing body 12 and the Movement takes place.
  • a tibia bearing plate 19 is attached to the end of the tibia part 11 facing the femur part 10.
  • the tibia bearing surface 20 facing the femur part 10 is spherical-shell-shaped or spherically curved.
  • the underside of the bearing body 12 assigned to the bearing surface is designed in a corresponding manner, so that the bearing body 12 is supported both rotatably and displaceably in the knee bend plane without risk of lifting off the tibia bearing surface.
  • the bearing body 12 is guided on the tibia bearing surface 20.
  • a pin-like stop 21 protrudes from the tibia bearing surface 20 and enters a slot-like opening 22 on the support or sliding surface of the bearing body 12 facing the tibia bearing surface 20, as is shown in FIGS. 1 and 2 is recognizable.
  • the pin-like stop 21 is screwed onto the tibia bearing surface 20 (see screw thread 23 in FIGS. 1 and 2).
  • the upper side or the side of the pin 21 facing the femur part 10 is hemispherical.
  • the cross-section and the inner corners of the slot-like opening or recess 22 in the bearing body 12 are adapted to the contour of the stop pin 21.
  • the described shape of the stop pin 21 does not prevent the shin from rotating relative to the thigh.
  • the tibia bearing plate 19 is asymmetrical in plan view. 4, in plan view, the bearing body 12 has an approximately kidney-shaped outline. It is made in one piece from plastic, in particular
  • the bearing shells assigned to the convex sliding surfaces 17, 18 of the femoral slide 16 are identified in FIG. 4 by the reference number 24.
  • the slot-like opening 22 in the bearing body 12 mentioned with reference to FIGS. 1 and 2 is designed as a continuous passage 25 in the embodiment according to FIGS. 4 to 6.
  • the threaded and shaft part of a cap screw 26 can be passed through this passage, as is shown, for example, in FIG. 7.
  • the cap screw 26 is screwed into the tibia bearing plate 19 or its bearing surface 20.
  • the corresponding threaded bore is identified in FIG. 3 with the reference number 27.
  • the complementary threaded section of the cap screw 26 is provided with the reference number 28 in FIG. 7. 7 has the shape of a lens. This screw head is in the assembled
  • the screw 26 can have an internal thread with which the screw 26 can be screwed onto a threaded pin at the upper end of the tibial dome 15.
  • the lines 32 in FIGS. 5 and 6 indicate a differently high bearing body 12, while the lines 33 show the possible widths of the bearing body 12. In this respect, it is a graphical representation of different sizes of the bearing body 12 in height and width.
  • the lower boundary surface 34 of the cylindrical section 31 of the cap screw 26 is flat.
  • a ring which is convexly curved on one side is interposed.
  • bearing body 12 All parts with the exception of the bearing body 12 are preferably made of titanium or a titanium alloy.
  • the bearing surfaces can additionally be provided with a ceramic layer.
  • the angle of inclination with respect to the horizontal is marked with a.
  • the angle ⁇ between the spherical shell-shaped bearing surface 20 and the tibial axis, which coincides with the geometric central longitudinal axis 37 of the tibial dome 15, is smaller than 90 ° by the angle ⁇ .
  • the angle of inclination is preferably 5 to 15 °, in particular approximately 10 °. Accordingly, the angle ⁇ is 75 ° to 85 °, in particular approximately 80 °.
  • the inclination of the spherical shell-shaped bearing surface 20 is defined by the inclination of the connecting straight line between the two end points of the bearing surface in the knee-bend plane (in FIG. 2, the plane of the drawing).
  • the geometric center 36 of the spherical shell-shaped bearing surface 20 of the tibia part 11 is opposite the central longitudinal axis 37 of the tibial dome 15, which coincides with the tibia axis and accordingly with the central longitudinal axis of the extended knee joint endoprosthesis or knee joint endoprosthesis in the extended position. moved backwards.
  • the described inclination of the spherical shell-shaped bearing surface 20 of the tibia part 11 towards the back ensures that the resistance to flexion does not increase in the final phase of the knee flexion, as is the case with the natural knee.
  • the sphericity of the bearing surface 20 also ensures that there is still sufficient resistance in the end-knee flexion position to prevent the bearing body from sliding off beyond the rear edge of the bearing surface.
  • the tibial mandrel 15 is displaced forward relative to the central longitudinal axis of the spherical shell-shaped bearing surface 20 of the tibia part 11 (see also FIG. 2).
  • This relative position between the spherical shell-shaped bearing surface 20 and the mandrel 15 also approaches the proximal end of the tibia to the naturally lying knee joint.
  • the force application into the tibia is then perpendicular to the implant contact surfaces, so that loosening of the tibia part is unlikely even after prolonged use.
  • the force transmission into the tibia is optimal.
  • the tibial bearing surface 20 is formed by a plate shaped like a spherical shell, the plate of which Thickness is about 1.0 to 2.0 mm. This measure makes it possible to remove only a minimum of bone material from the proximal end of the tibia. However, it is necessary to make the proximal end of the tibia correspondingly concave.
  • an instrument according to FIG. 1 is an instrument according to FIG.
  • the tibia shaped part 38 can be plugged onto the proximal end of the impact device 43 in the direction of the arrow 44.
  • the striking surface 39 is located exactly above the shaping surface 40, so that the spongiosa on the proximal, initially flat cutting surface of the tibia can be formed in a correspondingly concave manner by one or more strikes on the striking surface 39 with a hammer or the like striking tool so that the tibia bearing plate 19 can be fitted exactly, as indicated in FIG. 2.
  • a bore for the tibial mandrel 15 is made through it by means of a bone cutter.
  • a bore 41 for guiding the bone cutter 42 according to FIG. 10 is formed in the tibia shaped part 38.
  • the bore 41 is placed in such a way that the tibial mandrel bore can be produced in exact association with the bearing surface 20 of the tibia part 11 to be implanted.
  • the tibia shaped part 38 has two transverse slots 45, of which only one is visible in FIG. 8.
  • Complementary holding forks 46 of the impact device 43 can be inserted into these transverse slots 45.
  • Legs 47 of a U-shaped holder 48 which are of correspondingly flat shape, can also be pushed into the transverse slots 45.
  • the tibia shaped part 38 can be held in position by means of the holder 48 in order then to be tion 41 through the bone cutter 42 to form the tibial dome bore.
  • the distal end of the impact device 43 has a protruding nose 50.
  • this nose 50 rests on the upper side thereof. The impact is thus transmitted from the impact surface 39 via the shaft and the mentioned nose 50 of the impact device 42 to the tibia shaped part 38.
  • Tibial part is inclined backwards downwards, as shown in FIG. 2.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)

Abstract

Endoprothèse d'articulation du genou avec partie fémur (10), partie tibia (11) et un corps de palier (12) en matière plastique, en particulier en polyéthylène, disposé entre les parties fémur et tibia. Le corps de palier (12) appuie par un palier lisse sur une surface d'appui en forme de rotule (20) de la partie tibia (11) dirigée vers la partie fémur (10). Sur la surface d'appui (20) du tibia fait saillie une butée en forme de tenon ou de goupille (21) pénétrant dans une ouverture longitudinale (22) sur la surface de support et de glissement (32) du corps de palier (12) dirigée vers la surface d'appui du tibia (20), de telle sorte que le corps de palier (12), sur la surface d'appui du tibia (20), peut être déplacé soit en rotation, soit - dans une mesure limitée - en longueur dans le plan de flexion du genou.
EP95904493A 1993-12-30 1994-12-16 Endoprothese d'articulation du genou Withdrawn EP0689406A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4345032 1993-12-30
DE4345032 1993-12-30
PCT/EP1994/004194 WO1995017860A1 (fr) 1993-12-30 1994-12-16 Endoprothese d'articulation du genou

Publications (1)

Publication Number Publication Date
EP0689406A1 true EP0689406A1 (fr) 1996-01-03

Family

ID=6506556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95904493A Withdrawn EP0689406A1 (fr) 1993-12-30 1994-12-16 Endoprothese d'articulation du genou

Country Status (4)

Country Link
US (1) US5755802A (fr)
EP (1) EP0689406A1 (fr)
JP (1) JPH08507245A (fr)
WO (1) WO1995017860A1 (fr)

Cited By (1)

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GB2474408B (en) * 2008-07-10 2012-11-21 Imp Innovations Ltd Modular knee implants

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CA2225375A1 (fr) * 1996-12-23 1998-06-23 Mark Manasas Guide d'alignement pour l'insertion de composants orthopediques canneles ou clavetes
AT405014B (de) * 1997-07-18 1999-04-26 Implantech Medizintechnik Ges Gelenk-prothesenimplantat
US6123728A (en) * 1997-09-17 2000-09-26 Smith & Nephew, Inc. Mobile bearing knee prosthesis
US6010534A (en) * 1997-09-25 2000-01-04 Johnson & Johnson Professional, Inc. Rotatable tibial prosthesis with keyed axial securement
US6053945A (en) * 1997-09-25 2000-04-25 Johnson & Johnson Professional, Inc. Joint prosthesis having controlled rotation
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US6428577B1 (en) 1998-05-20 2002-08-06 Smith & Nephew, Inc. Mobile bearing knee prosthesis
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US6165223A (en) * 1999-03-01 2000-12-26 Biomet, Inc. Floating bearing knee joint prosthesis with a fixed tibial post
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US7338529B1 (en) 2004-03-30 2008-03-04 Biomet Manufacturing Corp. Methods and apparatuses for enhancing prosthetic implant durability
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RU2599212C2 (ru) 2010-07-24 2016-10-10 Зиммер, Инк. Семейство большеберцовых протезов (варианты)
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EP2535020A1 (fr) * 2011-06-16 2012-12-19 Deru GmbH Prothèses articulaires rotatives dotées d'un palier nu
DE102011054731A1 (de) * 2011-10-21 2013-04-25 Aesculap Ag Kniegelenkendoprothese und Tibiateil einer Kniegelenkendoprothese
EP3372201B1 (fr) 2011-11-18 2020-05-20 Zimmer, Inc. Élément porteur tibial pour prothèse du genou présentant des caractéristiques articulaires améliorées
US8758444B2 (en) 2011-11-21 2014-06-24 Zimmer, Inc. Tibial baseplate with asymmetric placement of fixation structures
EP2809273B1 (fr) 2012-01-30 2021-05-05 Zimmer, Inc. Éléments tibiaux asymétriques pour une prothèse de genou
EP2996634B1 (fr) 2013-05-17 2017-11-01 Brainlab AG Endoprothèse ajustable
US9925052B2 (en) 2013-08-30 2018-03-27 Zimmer, Inc. Method for optimizing implant designs
CN108135701B (zh) 2015-09-21 2019-12-24 捷迈有限公司 包括胫骨承载组件的假体系统
EP4014930A1 (fr) 2017-03-10 2022-06-22 Zimmer, Inc. Prothèse tibiale présentant un élément de fixation pour l'élément porteur tibial
JP6898470B2 (ja) 2017-05-12 2021-07-07 ジンマー，インコーポレイティド 拡大縮小能力を有する大腿骨プロテーゼ
US11426282B2 (en) 2017-11-16 2022-08-30 Zimmer, Inc. Implants for adding joint inclination to a knee arthroplasty
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US5755802A (en) 1998-05-26
WO1995017860A1 (fr) 1995-07-06
JPH08507245A (ja) 1996-08-06

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