[go: up one dir, main page]

WO1999034755A1 - Knee prosthesis - Google Patents

Knee prosthesis Download PDF

Info

Publication number
WO1999034755A1
WO1999034755A1 PCT/FR1998/002924 FR9802924W WO9934755A1 WO 1999034755 A1 WO1999034755 A1 WO 1999034755A1 FR 9802924 W FR9802924 W FR 9802924W WO 9934755 A1 WO9934755 A1 WO 9934755A1
Authority
WO
WIPO (PCT)
Prior art keywords
tibial
plate
prosthesis
femoral
keel
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.)
Ceased
Application number
PCT/FR1998/002924
Other languages
French (fr)
Inventor
Philippe Legay
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.)
EURO MEDIC
Original Assignee
EURO MEDIC
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 EURO MEDIC filed Critical EURO MEDIC
Publication of WO1999034755A1 publication Critical patent/WO1999034755A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • A61F2/3886—Joints for elbows or knees for stabilising knees against anterior or lateral dislocations
    • 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
    • A61F2/3868—Joints for elbows or knees with sliding tibial bearing
    • 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
    • A61F2/3877—Patellae or trochleae

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

The invention concerns a modular knee prosthesis comprising a metal tibial seat (T1 to T8), a plastic tibial plateau (PM1, PF1, PM2, PF2), a plastic kneecap and a metal femoral prosthesis (F1 to F8). The tibial seat (T1 to T8) comprises a plate with a rear outline defining a first planar support surface for receiving the tibial plateau and a second raised support surface for forming first positioning means for the tibial plateau. Second positioning means for the tibial plateau are formed in the plate front central portion and means are arranged on the plate lower face for receiving a tibial insertion wedge. The tibial plateau (PM1, PF1, PM2, PF2) has a planar main lower face co-operating with the tibial seat first support surface, an indentation formed at the plateau rear lower part for defining a planar raised lower surface co-operating with the tibial seat second planar raised support surface, and a main upper surface comprising two cups. The femoral prosthesis (F1 to F8) comprises a trochlea with large radius of curvature in the medio-lateral direction and a regular radius of curvature in the antero-posterior coil.

Claims

17REVENDICATIONS 17 CLAIMS 1. Prothèse du genou, comprenant une assise tibiale métallique (100), un plateau tibial en matière plastique (210 ; 220), une rotule en matière plastique (400) et une prothèse fémorale métallique (300), caractérisée en ce que l'assise tibiale (100) comprend une plaque (1 10) présentant un contour postérieur (112) essentiellement en forme de W et définissant une première surface d'appui plane (111) pour recevoir le plateau tibial (210 ; 220) et une deuxième surface d'appui plane surélevée (113) parallèle à la première surface d'appui (1 1 1) et formée sur une surépaisseur (120) au voisinage du contour postérieur (112) de la plaque (1 10) en ménageant une gorge (125) dans la face antérieure de la surépaisseur (120), pour former des premiers moyens de positionnement du plateau tibial (210 ; 220), des seconds moyens (121) de positionnement du plateau tibial (210 ; 220) formés dans la partie centrale antérieure de la plaque (1 10) et des moyens (127) disposés sur la face inférieure de la plaque (1 10) pour recevoir une quille (129) d'insertion tibiale, en ce que le plateau tibial (210 ; 220) présente un contour (208 ; 238) essentiellement en forme de haricot, une face inférieure principale plane (219 ; 229) coopérant avec la première surface d'appui (1 1 1) de l'assise tibiale (100), une échancrure (209 ; 239) formée à la partie postérieure inférieure du plateau (210 ; 220) pour définir une surface inférieure plane surélevée (219a ; 229a) coopérant avec la deuxième surface d'appui plane surélevée ( 1 13) de l'assise tibiale (100), et une face supérieure principale comprenant deux cuvettes (212, 213 ; 222, 223) constituées par des portions de sphères à grand rayon de courbure qui forment des parties antérieures relevées (205, 206 ; 235, 236) ; en ce que la prothèse fémorale (300) comporte une face antérieure ou trochlée (310) à large rayon de courbure dans le sens médio-latéral et à rayon de courbure régulier dans le sens de l'enroulement antéro-postérieur, des premier et deuxième condyles (302, 303) constitués de portions de sphères congruentes avec les cuvettes sphériques (212, 213 ; 222, 223) du plateau tibial (210 ; 220) et définissant entre eux une large échancrure (350) intercondylienne, et des moyens (305) disposés sur la face supérieure de la l o1. Knee prosthesis, comprising a metal tibial seat (100), a plastic tibial plate (210; 220), a plastic ball joint (400) and a metal femoral prosthesis (300), characterized in that the tibial seat (100) comprises a plate (1 10) having a posterior contour (112) essentially in the shape of a W and defining a first planar bearing surface (111) for receiving the tibial plateau (210; 220) and a second surface raised flat support (113) parallel to the first support surface (1 1 1) and formed on an extra thickness (120) in the vicinity of the posterior contour (112) of the plate (1 10) by providing a groove (125 ) in the anterior face of the extra thickness (120), to form first means for positioning the tibial plateau (210; 220), second means (121) for positioning the tibial plateau (210; 220) formed in the anterior central part of the plate (1 10) and means (127) arranged on the underside of the plate (110) to receive a keel (129) for tibial insertion, in that the tibial plate (210; 220) has an outline (208; 238) essentially in the form of a bean, a flat main lower face (219; 229) cooperating with the first bearing surface (1 1 1) of the tibial base (100), a notch (209; 239) formed at the lower rear part of the plate (210; 220) to define a raised planar lower surface (219a; 229a) cooperating with the second raised planar support surface (1 13) of the tibial base ( 100), and a main upper face comprising two bowls (212, 213; 222, 223) constituted by portions of spheres with large radius of curvature which form raised front parts (205, 206; 235, 236); in that the femoral prosthesis (300) has an anterior or trochlated face (310) with a wide radius of curvature in the medio-lateral direction and with a regular radius of curvature in the direction of the anteroposterior winding, of the first and second condyles (302, 303) consisting of portions of spheres congruent with the spherical cups (212, 213; 222, 223) of the tibial plateau (210; 220) and defining between them a wide intercondylar notch (350), and means (305 ) arranged on the upper face of the lo partie centrale de la prothèse fémorale (300) devant les premier et deuxième condyles (302, 303) pour recevoir une quille fémorale (320 ; 520) ; et en ce que la rotule (400) présente un dôme (401 ) avec un rayon de courbure identique au large rayon de courbure de la trochlée (310) de la prothèse fémorale (300).central part of the femoral prosthesis (300) in front of the first and second condyles (302, 303) to receive a femoral keel (320; 520); and in that the patella (400) has a dome (401) with a radius of curvature identical to the wide radius of curvature of the trochlea (310) of the femoral prosthesis (300). 2. Prothèse selon la revendication 1, caractérisée en ce que les seconds moyens de positionnement (121, 130) du plateau tibial (210 ; 220) sont formés de façon périphérique dans la partie centrale antérieure de la plaque (1 10) et coopèrent avec une échancrure antérieure (21 1 ; 221) du plateau tibial (210 ; 220) dont la forme contribue à définir le caractère fixe ou mobile dudit plateau tibial (210 ; 220).2. Prosthesis according to claim 1, characterized in that the second positioning means (121, 130) of the tibial plateau (210; 220) are formed peripherally in the anterior central part of the plate (1 10) and cooperate with an anterior notch (21 1; 221) of the tibial plateau (210; 220), the shape of which contributes to defining the fixed or mobile character of said tibial plateau (210; 220). 3. Prothèse selon la revendication 1 ou la revendication 2, caractérisée en ce que le plateau tibial (210) est maintenu en position fixe sur l'assise tibiale (100) d'une part à l'aide des seconds moyens de positionnement (121, 130) engagés dans une échancrure verticale étroite (21 1) formée à la partie antérieure du plateau (210) et d'autre part à l'aide de l'échancrure (209) formée à la partie postérieure inférieure du plateau (210) de manière à venir en butée contre la surépaisseur (120) formée dans l'assise tibiale (100) en s'engageant dans ladite gorge (125) formée dans la face antérieure de la surépaisseur (120).3. Prosthesis according to claim 1 or claim 2, characterized in that the tibial plate (210) is held in a fixed position on the tibial seat (100) on the one hand using the second positioning means (121 , 130) engaged in a narrow vertical notch (21 1) formed at the front part of the plate (210) and on the other hand using the notch (209) formed at the lower rear part of the plate (210) so as to abut against the extra thickness (120) formed in the tibial base (100) by engaging in said groove (125) formed in the front face of the extra thickness (120). 4. Prothèse selon la revendication 1 ou la revendication 2, caractérisée en ce que le plateau tibial (220) disposé sur l'assise tibiale (100) comprend une large échancrure verticale (221) à profil en arc de cercle formée à la partie antérieure du plateau (220) et une échancrure (239) formée en retrait à la partie postérieure inférieure du plateau (220) de manière à pouvoir présenter des déplacements médio- latéraux (dM ), un déplacement antéro-postérieur (dap) et des déplacements en rotation (α, et α2) par rapport à un axe central peφendiculaire à la face inférieure plane du plateau tibial, les déplacements étant limités par les seconds moyens de positionnement (121, ι 30) et par la surépaisseur (120) de l'assise tibiale (100) munie de la gorge (125) formée dans la face antérieure de la surépaisseur (120).4. Prosthesis according to claim 1 or claim 2, characterized in that the tibial plateau (220) disposed on the tibial seat (100) comprises a wide vertical notch (221) with an arcuate profile formed at the front of the plate (220) and a notch (239) formed recessed at the lower rear part of the plate (220) so as to be able to present medio-lateral displacements (d M ), an anteroposterior displacement (d ap ) and rotational movements (α, and α 2 ) relative to a central axis peφendicular to the flat underside of the tibial plateau, the movements being limited by the second positioning means (121, ι 30) and by the extra thickness (120) of the tibial base (100) provided with the groove (125) formed in the anterior face of the extra thickness (120). 5. Prothèse selon l'une quelconque des revendications 1 à 4, caractérisée en ce que, en l'absence de quille d'ancrage fémorale (320) ou tibiale (129), la prothèse du genou est symétrique par rapport à un plan (a a' ; bib', ; b2b'2 ; ce') peφendiculaire à la direction médio-latérale.5. Prosthesis according to any one of claims 1 to 4, characterized in that, in the absence of a femoral anchoring keel (320) or tibial (129), the knee prosthesis is symmetrical with respect to a plane (aa ';bib',; b 2 b '2;ce') peφendicular to the medio-lateral direction. 6. Prothèse selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la face supérieure principale du plateau tibial (210 ; 220) forme un dôme central (214 ; 224) creusé à sa partie postérieure de manière à présenter une pente arrière (215 ; 225).6. Prosthesis according to any one of claims 1 to 5, characterized in that the main upper face of the tibial plateau (210; 220) forms a central dome (214; 224) hollowed out at its rear part so as to have a slope rear (215; 225). 7. Prothèse selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la prothèse fémorale (300) comprend sur ses faces internes des parties en retrait (308, 309, 31 1, 312) et des moyens de fixation (306,307) disposés sur au moins deux parties en retrait (308, 309) formées sur les premier et deuxième condyles (302, 303).7. Prosthesis according to any one of claims 1 to 6, characterized in that the femoral prosthesis (300) comprises on its internal faces recessed parts (308, 309, 31 1, 312) and fixing means (306,307 ) arranged on at least two recessed parts (308, 309) formed on the first and second condyles (302, 303). 8. Prothèse selon la revendication 7, caractérisée en ce que la prothèse fémorale (300) comprend en outre un troisième condyle amovible (304) disposé entre les premier et deuxième condyles (302, 303), du côté interne de ceux-ci, le troisième condyle (304) comprenant des parties saillantes (341 à 344) et des orifices (316, 317) coopérant respectivement avec les parties en retrait (308, 309, 311, 312) et les moyens de fixation (306,307) disposés sur les faces internes de la prothèse fémorale (300).8. Prosthesis according to claim 7, characterized in that the femoral prosthesis (300) further comprises a third removable condyle (304) disposed between the first and second condyles (302, 303), on the internal side thereof, the third condyle (304) comprising projecting parts (341 to 344) and orifices (316, 317) cooperating respectively with the recessed parts (308, 309, 311, 312) and the fixing means (306,307) arranged on the faces internal of the femoral prosthesis (300). 9. Prothèse selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la quille (129) d'insertion tibiale présente une forme dissymétrique avec une première face principale (131) parallèle à un axe (aa') peφendiculaire à la surface d'appui plane ( 1 1 1) de la plaque ( 1 10) de l'assise tibiale (100) et une deuxième face principale (132) formant un angle d'environ 5° par rapport audit axe (aa'), la quille (129) pouvant être positionnée dans les moyens (127) de réception de quille formés sur la face inférieure de la plaque (110) de telle manière que lors du montage de la prothèse la face avant de la quille (129) soit constituée au choix par la première (131 ) ou la deuxième ( 132) face principale.9. Prosthesis according to any one of claims 1 to 8, characterized in that the keel (129) of tibial insertion has an asymmetrical shape with a first main face (131) parallel to an axis (aa ') peφendicular to the flat bearing surface (1 1 1) of the plate (1 10) of the tibial base (100) and a second main face (132) forming an angle of approximately 5 ° relative to said axis (aa '), the keel (129) being able to be positioned in the means (127) for receiving the keel formed on the underside of the plate (110) in such a way that during assembly of the prosthesis the front face of the keel (129) is constituted optionally by the first (131) or second (132) main face. 10. Prothèse selon la revendication 9, caractérisée en ce que les moyens (127) de réception de quille formés sur la face inférieure de la plaque (1 10) de l'assise tibiale (100) comprennent une partie hémisphérique dans laquelle est ménagé un trou borgne (128) de réception d'un plot (128a) de positionnement de la quille ( 129).10. Prosthesis according to claim 9, characterized in that the means (127) for receiving the keel formed on the underside of the plate (110) of the tibial base (100) comprise a hemispherical part in which is formed a blind hole (128) for receiving a pin (128a) for positioning the keel (129). 1 1. Prothèse selon l'une quelconque des revendications 1 à 10, caractérisée en ce qu'elle comprend une quille fémorale amovible (320) 201 1. Prosthesis according to any one of claims 1 to 10, characterized in that it comprises a removable femoral keel (320) 20 présentant un axe incliné d'environ 7° par rapport à la normale (d, d') à une surface de base munie d'une cavité d'ancrage (315) coopérant avec les moyens de fixation (305) disposés sur la face supérieure de la partie centrale de la prothèse fémorale (300), de telle sorte que la quille fémorale amovible (320) puisse être positionnée lors du montage sur la prothèse fémorale (300) avec une inclinaison choisie librement à droite ou à gauche.having an axis inclined about 7 ° relative to normal (d, d ') to a base surface provided with an anchoring cavity (315) cooperating with the fixing means (305) arranged on the upper face of the central part of the femoral prosthesis (300), so that the removable femoral keel (320) can be positioned during mounting on the femoral prosthesis (300) with a freely chosen inclination to the right or to the left. 12. Prothèse selon l'une quelconque des revendications 1 à 11, caractérisée en ce que la trochlée (310) de la prothèse fémorale (300) présente un rayon de courbure dans le sens médio-latéral compris entre environ 80 et 100 mm.12. Prosthesis according to any one of claims 1 to 11, characterized in that the trochlea (310) of the femoral prosthesis (300) has a radius of curvature in the medio-lateral direction of between approximately 80 and 100 mm. 13. Prothèse selon la revendication 4, caractérisée en ce que le plateau tibial (220) est disposé par rapport à l'assise tibiale ( 100) de manière à présenter des déplacements en rotation (α, et α ) maximaux de part et d'autre d'une position moyenne, de l'ordre de 15°. 13. Prosthesis according to claim 4, characterized in that the tibial plateau (220) is disposed relative to the tibial base (100) so as to have rotational displacements (α, and α) maximum share and another from an average position, of the order of 15 °. 14. Prothèse selon l'une quelconque des revendications 1 à 13, caractérisée en ce qu'elle comprend une assise tibiale (100) choisie parmi un jeu d'assises tibiales de tailles différentes (T] à T8) en nombre N compris entre 6 et 12, un plateau tibial (210, 220) choisi parmi un jeu de plateaux tibiaux fixes de tailles et épaisseurs différentes (PF,, PF2) en nombre n, compris entre 10 et 20 ou parmi un jeu de plateaux tibiaux mobiles de tailles et épaisseurs différentes (PMi, PM2) en nombre n2 compris entre 10 et 20, et une prothèse fémorale (300) choisie parmi un jeu de prothèses fémorales de tailles différentes (F] à F8) en nombre M compris entre 6 et 12.14. Prosthesis according to any one of claims 1 to 13, characterized in that it comprises a tibial seat (100) chosen from a set of tibial seats of different sizes (T] to T 8 ) in number N between 6 and 12, a tibial plate (210, 220) chosen from a set of fixed tibial plates of different sizes and thicknesses (PF, PF 2 ) in number n, between 10 and 20 or from a set of mobile tibial plates of different sizes and thicknesses (PMi, PM 2 ) in number n 2 between 10 and 20, and a femoral prosthesis (300) chosen from a set of femoral prostheses of different sizes (F] to F 8 ) in number M between 6 and 12. 15. Prothèse selon la revendication 14, caractérisée en ce que les nombres N, ni , n2 et M sont respectivement égaux à 8, 10, 10 et 8.15. Prosthesis according to claim 14, characterized in that the numbers N, ni, n 2 and M are respectively equal to 8, 10, 10 and 8. 16. Prothèse selon la revendication 14 ou la revendication 15, caractérisée en ce que le jeu d'assises tibiales de tailles différentes (T, à T8) est obtenu à partir d'une assise tibiale de taille maximale T8 dont la dimension (ML) dans le sens médio-latéral est de l'ordre de 85 mm et la dimension (AP) dans le sens antéro-postérieur est de l'ordre de 55 mm.16. Prosthesis according to claim 14 or claim 15, characterized in that the set of tibial seats of different sizes (T, to T 8 ) is obtained from a tibial seat of maximum size T 8 whose dimension ( ML) in the medio-lateral direction is around 85 mm and the dimension (AP) in the antero-posterior direction is around 55 mm. 17. Prothèse selon l'une quelconque des revendications 14 à 16, caractérisée en ce que dans le jeu d'assises tibiales de tailles différentes (Ti à T8), certaines assises tibiales ne diffèrent d'autres assises tibiales de tailles différentes que par une seule dimension choisie parmi la dimension (ML) 2117. Prosthesis according to any one of claims 14 to 16, characterized in that in the set of tibial bases of different sizes (Ti to T 8 ), certain tibial bases differ from other tibial bases of different sizes only by only one dimension chosen from dimension (ML) 21 dans le sens médio-latéral et parmi la dimension (AP) dans le sens antéro- postérieur.in the medio-lateral direction and among the dimension (AP) in the anteroposterior direction. 18. Prothèse selon l'une quelconque des revendications 14 à 17, caractérisée en ce que le jeu de prothèses fémorales de tailles différentes (F] à F8) est obtenu à partir d'une ou deux pièces de base définissant un cercle dont le rayon (R,) est compris entre environ 45 et 60 mm.18. Prosthesis according to any one of claims 14 to 17, characterized in that the set of femoral prostheses of different sizes (F] to F 8 ) is obtained from one or two basic parts defining a circle whose radius (R,) is between approximately 45 and 60 mm. 19. Prothèse selon la revendication 7, caractérisée en ce qu'elle comprend un module (500) de quille fémorale comportant un coφs (510) définissant une cavité hémisphérique, le coφs (510) étant prolongé vers le haut par une quille proprement dite (520) et étant muni latéralement à sa base de parties saillantes (531, 532, 534, 535) et d'orifices (556, 557, 555) coopérant respectivement avec les parties en retrait (308, 309, 31 1 , 312) et les moyens de fixation (306, 307, 305) formés sur les faces internes de la prothèse fémorale (300), et un module fémoro-tibial (600) comprenant une tête sphérique (610) destinée à s'engager dans la cavité hémisphérique du coφs (510) du module (500) de quille fémorale, et une plaque de base (620) munie de moyens (601, 602) de positionnement coopérant avec lesdits seconds moyens (121) de positionnement du plateau tibial (210) et des troisièmes moyens (122) de positionnement formés dans la partie centrale antérieure de la surépaisseur ( 120) de l'assise tibiale (100).19. Prosthesis according to claim 7, characterized in that it comprises a module (500) of the femoral keel comprising a coφs (510) defining a hemispherical cavity, the coφs (510) being extended upwards by a keel proper ( 520) and being provided laterally at its base with projecting parts (531, 532, 534, 535) and orifices (556, 557, 555) cooperating respectively with the recessed parts (308, 309, 31 1, 312) and the fixing means (306, 307, 305) formed on the internal faces of the femoral prosthesis (300), and a femoro-tibial module (600) comprising a spherical head (610) intended to engage in the hemispherical cavity of the coφs (510) of the femoral keel module (500), and a base plate (620) provided with positioning means (601, 602) cooperating with said second means (121) for positioning the tibial plateau (210) and thirds positioning means (122) formed in the front central part of the s thickness (120) of the tibial base (100). 20. Prothèse selon la revendication 9, caractérisée en ce que les moyens ( 127) de réception de quille formés sur la face inférieure de la plaque (1 10) de l'assise tibiale (100) comprennent une partie d'aspect premier hémisphérique (133) pourvue de cannelures (134) prolongée vers le bas par un élément en forme de tronc de cône (135) dont la grande base est raccordée à la partie cannelée, qui présente une pente d'environ 5°, et qui est muni d'un trou borgne ( 128) de réception d'un plot (128a) de positionnement de la quille (129). 20. Prosthesis according to claim 9, characterized in that the means (127) for receiving the keel formed on the underside of the plate (110) of the tibial base (100) comprise a portion of first hemispherical appearance ( 133) provided with grooves (134) extended downwards by a truncated cone-shaped element (135) whose large base is connected to the grooved part, which has a slope of approximately 5 °, and which is provided with 'A blind hole (128) for receiving a pin (128a) for positioning the keel (129).
PCT/FR1998/002924 1997-12-31 1998-12-31 Knee prosthesis Ceased WO1999034755A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9716776A FR2773059B1 (en) 1997-12-31 1997-12-31 KNEE PROSTHESIS
FR97/16776 1997-12-31

Publications (1)

Publication Number Publication Date
WO1999034755A1 true WO1999034755A1 (en) 1999-07-15

Family

ID=9515361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1998/002924 Ceased WO1999034755A1 (en) 1997-12-31 1998-12-31 Knee prosthesis

Country Status (3)

Country Link
CN (1) CN1143352C (en)
FR (1) FR2773059B1 (en)
WO (1) WO1999034755A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568486B2 (en) 2010-07-24 2013-10-29 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9283082B2 (en) 2010-07-24 2016-03-15 Zimmer, Inc. Methods related to seating of bearing component on tibial tray
US9308096B2 (en) 2011-11-21 2016-04-12 Zimmer, Inc. Tibial baseplate with asymmetric placement of fixation structures
US9314343B2 (en) 2010-09-10 2016-04-19 Zimmer, Inc. Motion facilitating tibial components for a knee prosthesis
US9381090B2 (en) 2010-07-24 2016-07-05 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
EP3015092A4 (en) * 2013-06-27 2017-02-15 Kyocera Medical Corporation Artificial knee joint implant
US10188530B2 (en) 2010-12-17 2019-01-29 Zimmer, Inc. Provisional tibial prosthesis system
US10278827B2 (en) 2015-09-21 2019-05-07 Zimmer, Inc. Prosthesis system including tibial bearing component
US10675153B2 (en) 2017-03-10 2020-06-09 Zimmer, Inc. Tibial prosthesis with tibial bearing component securing feature
US10835380B2 (en) 2018-04-30 2020-11-17 Zimmer, Inc. Posterior stabilized prosthesis system
US10898337B2 (en) 2011-11-18 2021-01-26 Zimmer, Inc. Tibial bearing component for a knee prosthesis with improved articular characteristics
US11324599B2 (en) 2017-05-12 2022-05-10 Zimmer, Inc. Femoral prostheses with upsizing and downsizing capabilities
US11324598B2 (en) 2013-08-30 2022-05-10 Zimmer, Inc. Method for optimizing implant designs
US11426282B2 (en) 2017-11-16 2022-08-30 Zimmer, Inc. Implants for adding joint inclination to a knee arthroplasty

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2854792B1 (en) * 2003-05-12 2005-09-09 Tornier Sa GAME OF PROTHETIC ELEMENTS FOR A TIBIAL PROTHETIC SET
DE102020118499A1 (en) * 2020-07-14 2022-01-20 Aesculap Ag Knee replacement kit, patient knee replacement kit and knee replacement system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936853A (en) * 1989-01-11 1990-06-26 Kirschner Medical Corporation Modular knee prosthesis
FR2653992A1 (en) * 1989-11-09 1991-05-10 Berakassa Richard Total sliding knee prosthesis
US5226916A (en) * 1990-08-28 1993-07-13 British Technology Group Limited Prosthetic femoral components
US5326359A (en) * 1991-11-29 1994-07-05 Etablissements Tornier Knee prosthesis with adjustable centro-medullary stem
EP0631764A1 (en) * 1993-06-22 1995-01-04 ESKA Implants GmbH & Co. Tibial part of a knee joint endoprosthesis
FR2718952A1 (en) * 1994-04-25 1995-10-27 Landanger Landos Complete knee prosthesis
FR2719466A1 (en) * 1994-05-04 1995-11-10 Ysebaert Sa Knee prosthesis with movable meniscus.
GB2296443A (en) * 1994-12-30 1996-07-03 Jbs Sa Sliding knee prosthesis with interchangeable components

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936853A (en) * 1989-01-11 1990-06-26 Kirschner Medical Corporation Modular knee prosthesis
FR2653992A1 (en) * 1989-11-09 1991-05-10 Berakassa Richard Total sliding knee prosthesis
US5226916A (en) * 1990-08-28 1993-07-13 British Technology Group Limited Prosthetic femoral components
US5326359A (en) * 1991-11-29 1994-07-05 Etablissements Tornier Knee prosthesis with adjustable centro-medullary stem
EP0631764A1 (en) * 1993-06-22 1995-01-04 ESKA Implants GmbH & Co. Tibial part of a knee joint endoprosthesis
FR2718952A1 (en) * 1994-04-25 1995-10-27 Landanger Landos Complete knee prosthesis
FR2719466A1 (en) * 1994-05-04 1995-11-10 Ysebaert Sa Knee prosthesis with movable meniscus.
GB2296443A (en) * 1994-12-30 1996-07-03 Jbs Sa Sliding knee prosthesis with interchangeable components

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568486B2 (en) 2010-07-24 2013-10-29 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US12239540B2 (en) 2010-07-24 2025-03-04 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9283082B2 (en) 2010-07-24 2016-03-15 Zimmer, Inc. Methods related to seating of bearing component on tibial tray
US9295557B2 (en) 2010-07-24 2016-03-29 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US11224519B2 (en) 2010-07-24 2022-01-18 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US10470889B2 (en) 2010-07-24 2019-11-12 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9381090B2 (en) 2010-07-24 2016-07-05 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US10543099B2 (en) 2010-07-24 2020-01-28 Zimmer, Inc. Tibial prosthesis
US9861490B2 (en) 2010-07-24 2018-01-09 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9763794B2 (en) 2010-07-24 2017-09-19 Zimmer, Inc. Tibial prosthesis
US10195041B2 (en) 2010-07-24 2019-02-05 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9918844B2 (en) 2010-07-24 2018-03-20 Zimmer, Inc. Tibial prosthesis with a fixed bearing component
US9192480B2 (en) 2010-07-24 2015-11-24 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US9763796B2 (en) 2010-07-24 2017-09-19 Zimmer, Inc. Asymmetric tibial components for a knee prosthesis
US10413415B2 (en) 2010-09-10 2019-09-17 Zimmer, Inc. Motion facilitating tibial components for a knee prosthesis
US9763795B2 (en) 2010-09-10 2017-09-19 Zimmer, Inc. Motion facilitating tibial components for a knee prosthesis
US11471288B2 (en) 2010-09-10 2022-10-18 Zimmer, Inc. Motion facilitating tibial components for a knee prosthesis
US9314343B2 (en) 2010-09-10 2016-04-19 Zimmer, Inc. Motion facilitating tibial components for a knee prosthesis
US10188530B2 (en) 2010-12-17 2019-01-29 Zimmer, Inc. Provisional tibial prosthesis system
US10898337B2 (en) 2011-11-18 2021-01-26 Zimmer, Inc. Tibial bearing component for a knee prosthesis with improved articular characteristics
US12383407B2 (en) 2011-11-18 2025-08-12 Zimmer, Inc. Tibial bearing component for a knee prosthesis with improved articular characteristics
US10265181B2 (en) 2011-11-21 2019-04-23 Zimmer, Inc. Tibial baseplate with asymmetric placement of fixation structures
US9707089B2 (en) 2011-11-21 2017-07-18 Zimmer, Inc. Tibial baseplate with asymmetric placement of fixation structures
US9308096B2 (en) 2011-11-21 2016-04-12 Zimmer, Inc. Tibial baseplate with asymmetric placement of fixation structures
US9839520B2 (en) 2013-06-27 2017-12-12 Kyocera Corporation Artificial knee joint implant
EP3015092A4 (en) * 2013-06-27 2017-02-15 Kyocera Medical Corporation Artificial knee joint implant
US11324598B2 (en) 2013-08-30 2022-05-10 Zimmer, Inc. Method for optimizing implant designs
US10278827B2 (en) 2015-09-21 2019-05-07 Zimmer, Inc. Prosthesis system including tibial bearing component
US11160659B2 (en) 2015-09-21 2021-11-02 Zimmer, Inc. Prosthesis system including tibial bearing component
US11547571B2 (en) 2017-03-10 2023-01-10 Zimmer, Inc. Tibial prosthesis with tibial bearing component securing feature
US10675153B2 (en) 2017-03-10 2020-06-09 Zimmer, Inc. Tibial prosthesis with tibial bearing component securing feature
US12458502B2 (en) 2017-03-10 2025-11-04 Zimmer, Inc. Tibial prosthesis with tibial bearing component securing feature
US11324599B2 (en) 2017-05-12 2022-05-10 Zimmer, Inc. Femoral prostheses with upsizing and downsizing capabilities
US11426282B2 (en) 2017-11-16 2022-08-30 Zimmer, Inc. Implants for adding joint inclination to a knee arthroplasty
US11911279B2 (en) 2018-04-30 2024-02-27 Zimmer, Inc. Posterior stabilized prosthesis system
US10835380B2 (en) 2018-04-30 2020-11-17 Zimmer, Inc. Posterior stabilized prosthesis system

Also Published As

Publication number Publication date
FR2773059A1 (en) 1999-07-02
CN1285953A (en) 2001-02-28
CN1143352C (en) 2004-03-24
FR2773059B1 (en) 2000-06-02

Similar Documents

Publication Publication Date Title
WO1999034755A1 (en) Knee prosthesis
EP1025819B1 (en) Knee prosthesis with an insert, which is mobile in relation to a post
EP1470800B1 (en) Modular guide post for knee prothesis with posterior stabilisation.
EP0758218A1 (en) Knee prosthesis with a movable meniscus
FR2772593A1 (en) Knee prosthesis femoral implant
EP1308142A2 (en) Patella implant and knee prosthesis comprising such an implant
EP1719478A2 (en) Total knee prothesis
EP0890347A1 (en) Knee joint prosthesis
EP0950387A1 (en) Knee prosthesis
FR2760352A1 (en) Total knee joint prosthesis
FR2805454A1 (en) KNEE PROSTHESIS WITH CAVITY IN THE TROCHLE
EP0709074A1 (en) Tibial-prosthetic part for knee prosthesis
EP2887910B1 (en) Prosthetic tibial base, and prosthetic tibial insert which is to be immobilized on such a prosthetic tibial base
FR2755847A1 (en) Shoulder joint articulation prosthesis
FR2721820A1 (en) KNEE PROSTHETIC JOINT, IN PARTICULAR ONE-COMPARTMENTAL KNEE PROSTHESIS, OR JOINT PROSTHESIS
FR2755601A1 (en) TOTAL KNEE PROSTHESIS
FR2750036A1 (en) Knee prosthesis assembly
FR2677880A1 (en) Single-compartment knee prosthesis
FR2913591A1 (en) Posterior stabilized type complete knee prosthesis, has femoral condyles of femoral implant and glenoid surfaces corresponding to intermediate plateau are such that medial lobe engages in round cavity during flexion movement of joint
EP3338740B1 (en) Knee prosthesis with fixed bearing
FR2692140A1 (en) 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
FR2794640A1 (en) Knee joint prosthesis comprises a femoral component fixed in the lower extremity of the femur and comprising two condyles, an intermediate component keyed to the condyles via its upper hollowed surface, a tibial component
FR2585236A1 (en) Unconstrained sliding knee endoprosthesis and method for manufacture thereof
FR2830435A1 (en) Tibial implant for replacement knee joint comprises base plate with notch in shape of arc of circle in its rear edge and pin on its front edge which cooperate with seatings on tibial plate
FR3083692A1 (en) TIBIAL PART AND TIBIAL INSERT OF A KNEE PROSTHESIS COMPRISING A PROMONTORY AND AN ASSOCIATED CUT

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA