FR2575920A1 - Knee prosthesis - Google Patents

Knee prosthesis Download PDF

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Publication number
FR2575920A1
FR2575920A1 FR8500529A FR8500529A FR2575920A1 FR 2575920 A1 FR2575920 A1 FR 2575920A1 FR 8500529 A FR8500529 A FR 8500529A FR 8500529 A FR8500529 A FR 8500529A FR 2575920 A1 FR2575920 A1 FR 2575920A1
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France
Prior art keywords
tibial
tibial element
shielding
hand
intended
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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.)
Granted
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FR8500529A
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French (fr)
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FR2575920B1 (en
Inventor
Michel Allal
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MATCO
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MATCO
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Publication date
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Priority to FR8500529A priority Critical patent/FR2575920B1/en
Publication of FR2575920A1 publication Critical patent/FR2575920A1/en
Application granted granted Critical
Publication of FR2575920B1 publication Critical patent/FR2575920B1/en
Expired legal-status Critical Current

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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
    • A61F2/389—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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30159—Concave polygonal shapes
    • A61F2002/30164—Concave polygonal shapes dovetail-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
    • 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
    • A61F2002/3082—Grooves
    • 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
    • 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
    • A61F2002/30879—Ribs
    • A61F2002/30883—Ribs dovetail-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
    • 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
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
    • 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
    • A61F2002/3895—Joints for elbows or knees unicompartimental
    • 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

Landscapes

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

Abstract

Knee prosthesis constituted by a condyloid element, a shielding plate or dish intended to hold a tibial element made of an acceptable appropriate material, for example very high density polyethylene, fitted with a radiographic locating organ, characterised in that the shielding plate or dish 4 has a two-thirds circular plan shape whose peripheral edge has a variable height and whose bottom comprises, on the one hand, striae 4a interacting with the orthopaedic cement and, on the other hand, a longitudinal window 7 intended to receive the fastening spikes 8, 9, 10 adapted to hook the tibial element 11 to the shielding dish 4 and to anchor this tibial element in the upper part of the tibia 3.

Description

La présente invention a pour objet une prothèse de genou hémi-compartirnentale à glissement avec plateau tibial blindé et elle se rapporte plus particulièrement à la protection du blindage du plateau tibial. The subject of the present invention is a sliding semi-compartment knee prosthesis with an armored tibial plateau and it relates more particularly to the protection of the armor of the tibial plateau.

Lorsque lton est amené en chirurgie osseuse à remplacer l'articulation naturelle du genou par une prothèse calquant anatomiquement la nature, il est important que sa résection soit minimale et conserve tous les ligaments. When it is necessary in bone surgery to replace the natural knee joint with a prosthesis that is anatomically similar to nature, it is important that its resection is minimal and preserves all the ligaments.

Il est également nécessaire de permettre une angu laiton de plus de 100 et d'obtenir la rotation naturelle. It is also necessary to allow a brass angle of more than 100 and to obtain natural rotation.

Ces interventions chirurgicales sont effectuées à la suite d'arthrite, d'arthrite rhumastismale,d'arthrose,de lésion polyarthritique,de genou instable et douloureux mais également à la suite de traumatismes particulièrement chez les grands sportifs. Par conséquent, il ess indispensable que ces prothèses permettent la correction des valgus ou varus anormaux par l'implantation de plaseaux de différentes épaisseurs mais en utilisant une quantité minimale de ciment. These surgical procedures are carried out following arthritis, rheumastismal arthritis, osteoarthritis, polyarthritic lesion, unstable and painful knee, but also following trauma, particularly among sports enthusiasts. Consequently, it is essential that these prostheses allow the correction of abnormal valgus or varus by the implantation of plates of different thicknesses but using a minimum quantity of cement.

De plus, cette prothèse doit permettre d'obtenir des surfaces parfaitement lisses supprimant ainsi tout risque de rupture. In addition, this prosthesis must make it possible to obtain perfectly smooth surfaces thus eliminating any risk of rupture.

Finalement, elle autorise sans problème la réimplan talion d'autres prothèses. Finally, it allows without problem the reimplan talion of other prostheses.

Conformément à l'invention, l'articulation du genou, devant etre constituée, comporte une prothèse définitive condylienne, un plateau de blindage et un élément tibial en général réalisé en une matière synthétique assemblable telle que le polyéthylène de très haute densité (RCH 1000) combinant un repérage radiographique, arsicu- laiton dans laquelle le plateau de blindage destiné à maintenir un élément tibial en matière appropriée acceptable, par exemple en polyéthylène de très haute densité, muni d'un organe de repérage radiographiqueet est caractérisée en ce que le plateau ou coupelle de blindage présente une forme en plan aux deux tiers circulaire dont le rebord périphérique a une hauteur variable et dont le fond comporce, d'une part, des stries coopérant avec le ciment orthopédique ei, d'autre part, une fenêtre longitudinale destinée à recevoir les picots d'accrochage adaptés pour accrocher l'élément tibial à la coupelle de blindage et à ancrer cet élément tibial dans la partie supérieure du tibia. According to the invention, the knee joint, to be constituted, comprises a final condylar prosthesis, an armor plate and a tibial element generally made of an assemblable synthetic material such as very high density polyethylene (RCH 1000) combining radiographic tracking, arsicu- brass in which the armor plate intended to hold a tibial element made of an acceptable acceptable material, for example made of very high density polyethylene, provided with a radiographic positioning element and is characterized in that the plate or shielding cup has a circular two-thirds plan shape whose peripheral rim has a variable height and whose bottom comprises, on the one hand, grooves cooperating with orthopedic cement and, on the other hand, a longitudinal window intended to receive the attachment pins adapted to hang the tibial element to the armor cup and to anchor this tibial element in the su the tibia.

Diverses autres caractéristiques de 1 'invention ressortent d'ailleurs de la description détaillée qui suit. Various other characteristics of the invention will become apparent from the detailed description which follows.

Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif, au dessin annexé. An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawing.

La fig. 1 est une vue en perspective partielle d'un genou muni d'une prothèse. Fig. 1 is a partial perspective view of a knee provided with a prosthesis.

La fig. 2 est une vue de dessous du blindage de 11 élément tibial. Fig. 2 is a bottom view of the armor of the tibial element.

La fig. 3 est une vue de dessus du blindage, côté tibia. Fig. 3 is a top view of the armor, tibia side.

La fig. 4 est une vue en perspective du blindage muni des éléments d'accrochage tibiaux (côté tibia). Fig. 4 is a perspective view of the shield provided with tibial attachment elements (tibia side).

La fig. 5 est une vue en perspective du blindage des éléments, côsé fémur, vue de dessus, pour coopérer avec la prothèse condylienne. Fig. 5 is a perspective view of the shielding of the elements, side of the femur, seen from above, to cooperate with the condylar prosthesis.

La fig. 6 est une vue en perspective arrière du blindage maintenant l'élément tibial. Fig. 6 is a rear perspective view of the shield holding the tibial element.

A la fig. l,-on a représenté partiellement un fémur 1 muni de sa prothèse condylienne 2. De plus, le tibia 3, après avoir été entaillé convenablement, a reçu le plateau de blindage 4 contenant intérieurement une prothèse tibiale 5 en matière synthétique.Bien entendu, après la miseen place de ce blindage, l'intervention chirurgicale permet la remise en place des ligaments et des muscles de façon à reconstituer complètement l'articulation du genou en assurant au patient une annulation normale de plus de 100 avec rotation nacurelle.  In fig. l, -a partial femur 1 has been shown fitted with its condylar prosthesis 2. In addition, the tibia 3, after having been suitably notched, has received the armor plate 4 internally containing a tibial prosthesis 5 made of synthetic material. after the placement of this shield, the surgical intervention allows the ligaments and muscles to be replaced so as to completely reconstruct the knee joint, ensuring the patient a normal cancellation of more than 100 with natural rotation.

Le plateau de blindage 4, tel que vu aux fig. 2 et 3, se compose d'une coupelle normalement en alliage d'acier (316 L austénitique) dont le fond 6 est lisse et est percé d'une fenêtre lo-ngitudinale 7 destinée à recevoir des picots d'accrochage 8, 9, 10 de grandeurs diverses mais adapté pour, d'une part, accrocher l'les ment tibial en matière plastique li et, d'autre part, servir d'ancrage dans la partie supérieure du tibia 3 après perchage correct de ce dernier. La coupelle 4 est tronquée de façon à laisser libre la partie arrière de l'extrémité supérieure du tibia en dégageant ainsi la partie supérieure légèrement hémisphérique de l'élément tibial 11 destiné à coopérer avec la prothèse condylienne 2 fixée d'une manière connue en soi sur la tête de fémur 1.Comme cela vient d'être décrit, la prothèse tibiale, formant le plan de rotation, est simplement encliquetée dans le plateau de blindage 4 qui forme une coquille aux deux tiers circulaire à fond plat et qui présente, sur sa face postérieure 4a, des stries parallèles ou cannelures 13 augmentant -ainsi l'ancrage du ciment orthopédique dans la liaison os-tibia-implant,
De même, l'élément tibial 11 présente sur sa face avant une rainure 14 pour l'ancrage du ciment orthopédi- que.The shield plate 4, as seen in figs. 2 and 3, consists of a cup normally made of alloy steel (316 L austenitic), the bottom 6 of which is smooth and is pierced with a lo-ngitudinal window 7 intended to receive attachment pins 8, 9, 10 of various sizes but suitable for, on the one hand, hanging the tibial ment in plastic li and, on the other hand, serve as an anchor in the upper part of the tibia 3 after correct perching of the latter. The cup 4 is truncated so as to leave free the rear part of the upper end of the tibia, thereby freeing the slightly hemispherical upper part of the tibial element 11 intended to cooperate with the condylar prosthesis 2 fixed in a manner known per se on the femur head 1.As described above, the tibial prosthesis, forming the plane of rotation, is simply snapped into the armor plate 4 which forms a two-thirds circular shell with a flat bottom and which, on its posterior face 4a, parallel ridges or grooves 13 increasing -so the anchoring of the orthopedic cement in the bone-tibia-implant connection,
Likewise, the tibial element 11 has on its front face a groove 14 for anchoring the orthopedic cement.

Les prothèses condyliennes et tibiales 2 et 5 étant réalisées le plus souvent en trois dimensions pour concorder avec la conformation du genou de chaque patient, la coquille ou plateau de blindage 4 est réalisée égale- ment en trois dimensions correspondant aux cotes de la prothèse. De même, les épaisseurs peuvent varier suivant la morphologie du patient. Since the condylar and tibial prostheses 2 and 5 are most often made in three dimensions to match the conformation of the knee of each patient, the shell or shielding plate 4 is also made in three dimensions corresponding to the dimensions of the prosthesis. Likewise, the thicknesses can vary according to the morphology of the patient.

L'ensemble plateau de blindage 4 es prothèse tibial 5 ainsi monté devient Triécaniquement souhaite el monobloc offrant au praticien chirurgien un ensemble cohérent d'une longévité remarquable et d'un emploi facile.  The set of shielding plate 4 es tibial prosthesis 5 thus mounted becomes Triechanically desired el monobloc offering to the surgeon practitioner a coherent set of remarkable longevity and easy to use.

Claims (2)

REVENDICATIONS 1 - Prothèse de genou constituée par un élément condylien, un plateau ou c#oupelle de blindage destinés à maintenir un élément tibial en matière appropriée acceptable par exemple en polyéthylène de très haute densité, muni d'un organe de repérage radiographique, caractérisée en ce que le plateau ou coupelle de blindage(4)présente une forme en plan aux deux tiers circulaire dont le rebord périphérique a une hauteur variable et dont le fond comporte > d'une part, des stries (4a) coopérant avec le ciment orthopédique et,J'autre part, une fenetre longitudinale (7) destinée à recevoir les picots d'accrochage (8,9,10) adaptés pour accrocher l'élément tibial (11) à la coupelle de blindage (4) et à ancrer cet élément tibial dans la partie supérieure du tibia (3). 1 - Knee prosthesis constituted by a condylar element, a plate or c # or shielding sheath intended to maintain a tibial element in suitable material acceptable for example in very high density polyethylene, provided with a radiographic locating organ, characterized in that that the shielding plate or cup (4) has a two-thirds circular plan shape, the peripheral rim of which has a variable height and the bottom of which comprises> on the one hand, ridges (4a) cooperating with the orthopedic cement and, On the other hand, a longitudinal window (7) intended to receive the attachment pins (8, 9, 10) adapted to hang the tibial element (11) on the armor cup (4) and to anchor this tibial element in the upper part of the tibia (3). 2 - Prothèse de genou suivant la revendication 1, caractérisée en ce que l'épaisseur de la coupelle de blindage varie suivant la morphologie du genou du patient et en ce que cette pièce (4) est réalisée en alliage d'acier -(316 L austénitique).  2 - Knee prosthesis according to claim 1, characterized in that the thickness of the shielding cup varies according to the morphology of the patient's knee and in that this piece (4) is made of alloy steel - (316 L austenitic).
FR8500529A 1985-01-15 1985-01-15 KNEE PROSTHESIS Expired FR2575920B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8500529A FR2575920B1 (en) 1985-01-15 1985-01-15 KNEE PROSTHESIS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8500529A FR2575920B1 (en) 1985-01-15 1985-01-15 KNEE PROSTHESIS

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FR2575920A1 true FR2575920A1 (en) 1986-07-18
FR2575920B1 FR2575920B1 (en) 1989-12-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002881A1 (en) * 1985-11-14 1987-05-21 Jean Manuel Aubaniac Tibial plateau for knee endoprosthesis
US4743261A (en) * 1986-01-27 1988-05-10 Epinette Jean Alain Tibial component for unicompartmental knee prosthesis for a cementness implantation
US4964865A (en) * 1988-02-03 1990-10-23 Intermedics Orthopedics, Inc. Glenoid prosthesis and method of use
FR2692140A1 (en) * 1992-06-11 1993-12-17 Corum Ste Civile Partial prosthesis for replacement of knee joint - comprises condylar component implanted into lower end of femur, cooperating with shaped tibial plate supported by bone-embedded metal bar
EP1927328A3 (en) * 2006-11-30 2008-07-02 Biomet Manufacturing Corp. Arthroscopic unicompartmental knee implantation system and related method
FR2971701A1 (en) * 2011-02-17 2012-08-24 Ohst Medizintechnik Ag Knee prosthesis element for restoration of knee bone joint between femur and tibia, has connection element interposed between contact and resected bone surfaces, where ratio between areas of portions of surfaces is equal to specific value

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229382A1 (en) * 1973-05-17 1974-12-13 Charnley John
EP0032828A2 (en) * 1980-01-17 1981-07-29 Howmedica International Inc. Tibial prosthesis component and total prosthesis devices employing such components
US4340978A (en) * 1979-07-02 1982-07-27 Biomedical Engineering Corp. New Jersey meniscal bearing knee replacement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229382A1 (en) * 1973-05-17 1974-12-13 Charnley John
US4340978A (en) * 1979-07-02 1982-07-27 Biomedical Engineering Corp. New Jersey meniscal bearing knee replacement
EP0032828A2 (en) * 1980-01-17 1981-07-29 Howmedica International Inc. Tibial prosthesis component and total prosthesis devices employing such components

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002881A1 (en) * 1985-11-14 1987-05-21 Jean Manuel Aubaniac Tibial plateau for knee endoprosthesis
US4743261A (en) * 1986-01-27 1988-05-10 Epinette Jean Alain Tibial component for unicompartmental knee prosthesis for a cementness implantation
US4964865A (en) * 1988-02-03 1990-10-23 Intermedics Orthopedics, Inc. Glenoid prosthesis and method of use
FR2692140A1 (en) * 1992-06-11 1993-12-17 Corum Ste Civile Partial prosthesis for replacement of knee joint - comprises condylar component implanted into lower end of femur, cooperating with shaped tibial plate supported by bone-embedded metal bar
EP1927328A3 (en) * 2006-11-30 2008-07-02 Biomet Manufacturing Corp. Arthroscopic unicompartmental knee implantation system and related method
US7896923B2 (en) 2006-11-30 2011-03-01 Biomet Manufacturing Corp. Arthroscopic unicompartmental knee implantation system and related method
FR2971701A1 (en) * 2011-02-17 2012-08-24 Ohst Medizintechnik Ag Knee prosthesis element for restoration of knee bone joint between femur and tibia, has connection element interposed between contact and resected bone surfaces, where ratio between areas of portions of surfaces is equal to specific value

Also Published As

Publication number Publication date
FR2575920B1 (en) 1989-12-22

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