WO2002009624A1 - Double-compartment knee prosthesis - Google Patents

Double-compartment knee prosthesis Download PDF

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Publication number
WO2002009624A1
WO2002009624A1 PCT/FR2001/002257 FR0102257W WO0209624A1 WO 2002009624 A1 WO2002009624 A1 WO 2002009624A1 FR 0102257 W FR0102257 W FR 0102257W WO 0209624 A1 WO0209624 A1 WO 0209624A1
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WO
WIPO (PCT)
Prior art keywords
implant
condylar
tibial
level
internal
Prior art date
Application number
PCT/FR2001/002257
Other languages
French (fr)
Inventor
Jean-Manuel Aubaniac
Original Assignee
Aubaniac Jean Manuel
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 Aubaniac Jean Manuel filed Critical Aubaniac Jean Manuel
Priority to AU2001278528A priority Critical patent/AU2001278528A1/en
Publication of WO2002009624A1 publication Critical patent/WO2002009624A1/en

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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
    • A61F2/3868—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
    • A61F2/3886—Joints for elbows or knees for stabilising knees against anterior or lateral dislocations

Definitions

  • the invention relates to the technical sector of orthopedic implants, in particular knee prostheses.
  • the invention relates to a two-compartment anatomical prosthesis for the sliding knee comprising a femoral implant and a tibial implant.
  • the knee joint is made up of three compartments, namely:
  • osteoarthritis of the knee does not necessarily concern these three compartments, but is most often limited to the femorotibial compartments, without however reaching the femoro-patellar compartment.
  • total sliding knee prostheses whatever their embodiments, are shaped to replace the three compartments, including the femoro-patellar compartment, even if the latter is perfectly healthy.
  • the Applicant has proposed a solution according to which the femoral implant has two condylar pads joined at the level of the median intercondylar notch by a solid part, said pads being profiled at the posterior level to wrap the condyles. bony, being united at the anterior level directly by the solid part without forming a trochlea.
  • This absence of trochlea makes it possible to produce a much more closed femoral implant so as to adapt completely to the bone anatomy, as well as to the functional anatomy of the knee.
  • the problem which the invention proposes to solve is to produce an original bicompartmental prosthesis, anatomical, postero-stabilized, with high flexion and with a movable r plateautatory plate.
  • an anatomical knee-sliding knee prosthesis comprising a femoral implant and a tibial implant
  • a femoral implant comprises two internal and external condylar pads joined at the level of the intercondylar midline notch with a solid part
  • the condylar pads are profiled at the posterior level to wrap the bony condyles;
  • the condylar pads are joined at the anterior level directly by the solid part, without forming a trochlea;
  • the condylar pads have at the level of the notch posterior stabilized guide arrangements cooperating with arrangements complementary to part of the tibial implant;
  • the tibial implant has a tibial polyethylene plate mounted with limited displacement capacity in rotation in a horizontal plane, in a fixed metal tibial base.
  • the internal and external condylar pads have, in plan, a symmetrical profile with respect to the median axis of the implant, so that the internal condylar pad for a right knee represents the external condylar pad for a left knee and vice versa .
  • FIG. 1 is a schematic longitudinal sectional view of the two-compartment prosthesis according to the invention
  • FIG. 2 and 3 are side views of the femoral implant
  • FIG. 4 is a plan view of the femoral implant.
  • the anatomical bicompartmental knee prosthesis comprises a femoral implant (1) mounted in abutment and sliding on a mobile tibial plate (2) of a tibial base (3), fixed, by any known and appropriate means.
  • the femoral implant (1) comprises two internal (la) and external (lb) condylar pads joined at the level of the intercondylar midline by a solid part (le).
  • the condylar pads (la, lb) have, at the level of the notch, postero-stabilized guide arrangements (ld) capable of cooperating with complementary arrangements (2a) which present part of the tibial implant, in particular the tibial plateau (2 ) advantageously made of polyethylene.
  • the tibial plateau (2) is mounted with limited displacement capacity in rotation in a horizontal plane in the metal tibial base (3).
  • the tibial plateau (2) may have an overflow from its underside, a median stud (2b) capable of being engaged in a cylindrical well (3 a) of the tibial base (3).
  • the tibial plateau (2) and the tibial base (3) may have complementary arrangements for angular indexing in rotation of the plate.
  • the internal and external condylar pads (la) and (lb) are profiled at the posterior level to envelop the bony condyles which are joined at the anterior level directly by the solid part (le), without forming a trochlea.
  • the condylar pads (la) and (lb) present at the posterior level an external curvature (le) capable of completely enveloping the posterior face of the bony condyles.
  • Each of the internal and external condylar pads (la) and (lb) have, on the internal side, a series of cut sides delimiting flat bearing surfaces (a), (b), (c), (d). These bearing surfaces are intended to cooperate with the femoral bone cuts obtained by any known and appropriate means.
  • the bearing surface (a), considered from the anterior edge of the femoral implant, is located in a vertical plane corresponding substantially to that of the mechanical axis of the femur, in a knee extension position.
  • the horizontal surface (a) is extended by the surface (b) which is inclined, constituting a connection surface oriented at an obtuse angle of approximately 130 ° relative to said surface (a).
  • the inclined surface (b) is extended by the surface (c) which is oriented substantially perpendicular to the surface (a).
  • the surface (d) is located in the extension of the surface (c), being oriented in a substantially symmetrical manner with respect to the inclined connection surface (b).
  • the two surfaces (b) and (d) are substantially perpendicular to each other.
  • the internal (la) and external (lb) condylar pads have, seen in plan, a profile symmetrical with respect to the median axis of the implant, so that the internal condylar pad (la) for a right knee represents the external condylar pad for a left knee and vice versa.
  • the external edges (lai) and (lbl) of each condylar pad converge at the posterior level in the direction of the median axis of the implant.
  • the internal edges (la2) and (lb2) of each condylar pad form, at the posterior level, a radius of curvature oriented in a diverging manner relative to the median axis of the implant.

Abstract

The invention concerns a sliding anatomical double-compartment knee prosthesis comprising a femoral implant and a tibial implant: the femoral implant (1) comprises two internal (1a) and external (1b) condylar pads assembled at the intercondylar median indentation by a solid part (1c); the condylar pads (1a, 1b) are profiled at the rear to enclose the bone condyles; the condylar pads (1a, 1b) are assembled, at the front, directly by the solid part (1c) without forming a trochlea; the condylar pads (1a, 1b) have, at the indentation, fittings for postero-stabilised guiding (1d) co-operating with complementary fittings (2a) of part of the tibial implant; the tibial implant has a polyethylene tibial plateau (2) mounted mobile in limited rotation in a horizontal plane, in a fixed metal tibial base plate (3); the internal (1a) and external (1b) condylar pads have, in plane view, a symmetrical profile relative to the median axis of the implant, such that the internal condylar pad (1a) for the right knee represents the external condylar pad (1b) for the left knee, and vice versa.

Description

PROTHESEBICOMPARTIMENTALEDUGENOU. PROTHESEBICOMPARTIMENTALEDUGENOU.
L'invention se rattache au secteur technique des implants orthopédiques notamment des prothèses du genou.The invention relates to the technical sector of orthopedic implants, in particular knee prostheses.
Plus particulièrement, l'invention concerne une prothèse bicompartimentale anatomique du genou à glissement comprenant un implant fémoral et un implant tibial.More particularly, the invention relates to a two-compartment anatomical prosthesis for the sliding knee comprising a femoral implant and a tibial implant.
Sur un plan anatomique, l'articulation du genou est composée de trois compartiments à savoir :Anatomically, the knee joint is made up of three compartments, namely:
- un compartiment fémor'p-tibial interne,- a fémor compartment internal p-tibial,
- un compartiment fémoro-tibial externe,- an external femoro-tibial compartment,
- un compartiment fémoro-patellaire.- a femoro-patellar compartment.
Il s'avère que l'arthrose du genou ne concerne pas obligatoirement ces trois compartiments, mais se limite le plus souvent aux compartiments fémoro- tibiaux, sans pour autant atteindre le compartiment fémoro-patellaire. Or, il apparaît que les prothèses totales du genou à glissement, quelles que soient leurs formes de réalisation, sont conformées pour remplacer les trois compartiments, dont le compartiment fémoro-patellaire, même si ce dernier est parfaitement sain.It turns out that osteoarthritis of the knee does not necessarily concern these three compartments, but is most often limited to the femorotibial compartments, without however reaching the femoro-patellar compartment. However, it appears that total sliding knee prostheses, whatever their embodiments, are shaped to replace the three compartments, including the femoro-patellar compartment, even if the latter is perfectly healthy.
Par expérience, il s'avère que dans 80 % des cas, le compartiment fémoro-patellaire est sain, alors qu'il a été prothèse.From experience, it turns out that in 80% of cases, the femoro-patellar compartment is healthy, whereas it was prosthetic.
Il en résulte des complications mécaniques, suite à un défaut de course rotulienne, à une instabilité rotulienne, à une subluxation, à une luxation ou une fracture de fatigue de la rotule prothésée, à une rupture du tendon rotulien, ou bien à une rupture du tendon quadricépital. Ces complications de l'appareil extenseur de la fémoro-patellaire représente 50 % des causes de reprise d'une prothèse du genou.This results in mechanical complications, following a patellar stroke defect, patellar instability, subluxation, dislocation or fatigue fracture of the prosthetic patella, a rupture of the patellar tendon, or even a rupture of the quadricepital tendon. These complications of the femoro-patellar extensor represent 50% of the causes of revision of a knee prosthesis.
Pour remédier à ces inconvénients, le Demandeur de la présente a proposé une solution selon laquelle l'implant fémoral présente deux patins condyliens réunis au niveau de l'échancrure médiane intercondylienne par une partie pleine, lesdits patins étant profilés au niveau postérieur pour envelopper les condyles osseux, en étant réunis au niveau antérieur directement par la partie pleine sans former une trochlée. Cette absence de trochlée permet de réaliser un implant fémoral beaucoup plus fermé de manière à s'adapter de façon complète à l'anatomie osseuse, ainsi qu'à l'anatomie fonctionnelle du genou.To remedy these drawbacks, the Applicant has proposed a solution according to which the femoral implant has two condylar pads joined at the level of the median intercondylar notch by a solid part, said pads being profiled at the posterior level to wrap the condyles. bony, being united at the anterior level directly by the solid part without forming a trochlea. This absence of trochlea makes it possible to produce a much more closed femoral implant so as to adapt completely to the bone anatomy, as well as to the functional anatomy of the knee.
A partir de cette conception de base, le problème que se propose de résoudre l'invention est de réaliser une prothèse bicompartimentale originale, anatomique, postérostabilisée, à haute flexion et à plateau mobile rόtatoire.From this basic conception, the problem which the invention proposes to solve is to produce an original bicompartmental prosthesis, anatomical, postero-stabilized, with high flexion and with a movable r plateautatory plate.
Pour résoudre un tel problème, il a été conçu et mis au point une prothèse bicompartimentale anatomique à glissement du genou comprenant un implant fémoral et un implant tibial, selon laquelle : - l'implant fémoral comprend deux patins condyliens interne et externe réunis au niveau de l'échancrure médiane intercondylienne par une partie pleine ;To solve such a problem, an anatomical knee-sliding knee prosthesis comprising a femoral implant and a tibial implant has been designed and developed, according to which: - the femoral implant comprises two internal and external condylar pads joined at the level of the intercondylar midline notch with a solid part;
- les patins condyliens sont profilés au niveau postérieur pour envelopper les condyles osseux ;- the condylar pads are profiled at the posterior level to wrap the bony condyles;
- les patins condyliens sont réunis au niveau antérieur directement par la partie pleine, sans former une trochlée ;- the condylar pads are joined at the anterior level directly by the solid part, without forming a trochlea;
- les patins condyliens présentent au niveau de l'échancrure des agencements de guidage postérostabilisé coopérant avec des agencements complémentaires d'une partie de l'implant tibial ;- the condylar pads have at the level of the notch posterior stabilized guide arrangements cooperating with arrangements complementary to part of the tibial implant;
- l'implant tibial présente un plateau tibial en polyéthylène monté avec capacité de déplacement limité en rotation dans un plan horizontal, dans une embase tibiale métallique fixe. - les patins condyliens interne et externe présentent, mis en plan, un profil symétrique par rapport à l'axe médian de l'implant, de sorte que le patin condylien interne pour un genou droit représente le patin condylien externe pour un genou gauche et inversement.- the tibial implant has a tibial polyethylene plate mounted with limited displacement capacity in rotation in a horizontal plane, in a fixed metal tibial base. - the internal and external condylar pads have, in plan, a symmetrical profile with respect to the median axis of the implant, so that the internal condylar pad for a right knee represents the external condylar pad for a left knee and vice versa .
L'invention est exposée, ci-après, plus en détail à l'aide des figures des dessins annexés, dans lesquels :The invention is set out below in more detail with the aid of the figures of the appended drawings, in which:
- La figure 1 est une vue en coupe longitudinale à caractère schématique de la prothèse bicompartimentale selon l'invention ; - Les figures 2 et 3 sont des vues de profil de l'implant fémoral ;- Figure 1 is a schematic longitudinal sectional view of the two-compartment prosthesis according to the invention; - Figures 2 and 3 are side views of the femoral implant;
- La figure 4 est une vue en plan de l'implant fémoral.- Figure 4 is a plan view of the femoral implant.
La prothèse bicompartimentale anatomique du genou comprend un implant fémoral (1) monté en appui et à glissement sur un plateau tibial mobile (2) d'une embase tibiale (3), fixée, par tous moyens connus et appropriés.The anatomical bicompartmental knee prosthesis comprises a femoral implant (1) mounted in abutment and sliding on a mobile tibial plate (2) of a tibial base (3), fixed, by any known and appropriate means.
L'implant fémoral (1) comprend deux patins condyliens interne (la) et externe (lb) réunis au niveau de l'échancrure médiane intercondylienne par une partie pleine (le).The femoral implant (1) comprises two internal (la) and external (lb) condylar pads joined at the level of the intercondylar midline by a solid part (le).
Les patins condyliens (la, lb) présentent, au niveau de l'échancrure, des agencements de guidage postérostabilisés (ld) aptes à coopérer avec des agencements complémentaires (2a) qui présentent une partie de l'implant tibial notamment le plateau tibial (2) réalisé avantageusement en polyéthylène.The condylar pads (la, lb) have, at the level of the notch, postero-stabilized guide arrangements (ld) capable of cooperating with complementary arrangements (2a) which present part of the tibial implant, in particular the tibial plateau (2 ) advantageously made of polyethylene.
Le plateau tibial (2) est monté avec capacité de déplacement limité en rotation dans un plan horizontal dans l'embase tibiale métallique (3). Par exemple, le plateau tibial (2) peut présenter en débordement de sa face de dessous, un plot médian (2b) apte à être engagé dans un puits cylindrique (3 a) de l'embase tibiale (3). A noter également que le plateau tibial (2) et l'embase tibiale (3), peuvent présenter des agencements complémentaires d'indexation angulaire en rotation du plateau.The tibial plateau (2) is mounted with limited displacement capacity in rotation in a horizontal plane in the metal tibial base (3). For example, the tibial plateau (2) may have an overflow from its underside, a median stud (2b) capable of being engaged in a cylindrical well (3 a) of the tibial base (3). Also note that the tibial plateau (2) and the tibial base (3), may have complementary arrangements for angular indexing in rotation of the plate.
Selon une caractéristique importante de l'invention, les patins condyliens interne et externe (la) et (lb) sont profilés au niveau postérieur pour envelopper les condyles osseux qui sont réunis au niveau antérieur directement par la partie pleine (le), sans former une trochlée.According to an important characteristic of the invention, the internal and external condylar pads (la) and (lb) are profiled at the posterior level to envelop the bony condyles which are joined at the anterior level directly by the solid part (le), without forming a trochlea.
Ainsi, les patins condyliens (la) et (lb) présentent au niveau postérieur une courbure externe (le) apte à envelopper totalement la face postérieure des condyles osseux.Thus, the condylar pads (la) and (lb) present at the posterior level an external curvature (le) capable of completely enveloping the posterior face of the bony condyles.
Chacun des patins condyliens interne et externe (la) et (lb) présentent, du côté interne, une série de pans coupés délimitant des surfaces planes d'appui (a), (b), (c), (d). Ces surfaces d'appui sont destinées à coopérer avec les coupes osseuses fémorales obtenues par tous moyens connus et appropriés.Each of the internal and external condylar pads (la) and (lb) have, on the internal side, a series of cut sides delimiting flat bearing surfaces (a), (b), (c), (d). These bearing surfaces are intended to cooperate with the femoral bone cuts obtained by any known and appropriate means.
La surface d'appui (a), considérée à partir du bord antérieur de l'implant fémoral, est située dans un plan vertical correspondant sensiblement à celui de l'axe mécanique du fémur, dans une position d'extension du genou. La surface horizontale (a) est prolongée par la surface (b) qui est inclinée en constituant une surface à raccordement orientée selon un angle obtus d'environ 130° par rapport à ladite surface (a). La surface inclinée (b) est prolongée par la surface (c) qui est orientée sensiblement perpendiculairement à la surface (a). La surface (d) est située dans le prolongement de la surface (c), en étant orientée d'une manière sensiblement symétrique par rapport à la surface inclinée de raccordement (b). Les deux surfaces (b) et (d) sont sensiblement perpendiculaires l'une à l'autre.The bearing surface (a), considered from the anterior edge of the femoral implant, is located in a vertical plane corresponding substantially to that of the mechanical axis of the femur, in a knee extension position. The horizontal surface (a) is extended by the surface (b) which is inclined, constituting a connection surface oriented at an obtuse angle of approximately 130 ° relative to said surface (a). The inclined surface (b) is extended by the surface (c) which is oriented substantially perpendicular to the surface (a). The surface (d) is located in the extension of the surface (c), being oriented in a substantially symmetrical manner with respect to the inclined connection surface (b). The two surfaces (b) and (d) are substantially perpendicular to each other.
Comme le montrent notamment les ligures 2 et 3, les patins condyliens interne (la) et externe (lb) présentent, vus en plan, un profil symétrique par rapport à l'axe médian de l'implant, de sorte que le patin condylien interne (la) pour un genou droit représente le patin condylien externe pour un genou gauche et inversement. Les bords externes (lai) et (lbl) de chaque patin condylien convergent au niveau postérieur en direction de l'axe médian de l'implant. Inversement, les bords internes (la2) et (lb2) de chaque patin condylien forment, au niveau postérieur, un rayon de courbure orienté d'une manière divergente par rapport à l'axe médian de l'implant.As shown in particular in Figures 2 and 3, the internal (la) and external (lb) condylar pads have, seen in plan, a profile symmetrical with respect to the median axis of the implant, so that the internal condylar pad (la) for a right knee represents the external condylar pad for a left knee and vice versa. The external edges (lai) and (lbl) of each condylar pad converge at the posterior level in the direction of the median axis of the implant. Conversely, the internal edges (la2) and (lb2) of each condylar pad form, at the posterior level, a radius of curvature oriented in a diverging manner relative to the median axis of the implant.
Les avantages ressortent bien de la description. The advantages are apparent from the description.

Claims

REVENDICATIONS
-1- Prothèse bicompartimentale anatomique du genou à glissement comprenant un implant fémoral et un implant tibial :-1- Anatomical bicompartmental knee prosthesis including a femoral implant and a tibial implant:
- l'implant fémoral (1) comprend deux patins condyliens interne (la) et externe (lb) réunis au niveau de l'échancrure médiane intercondylienne par une partie pleine (le) ;- the femoral implant (1) comprises two internal (la) and external (lb) condylar pads joined at the level of the intercondylar midline by a solid part (le);
- les patins condyliens (la, lb) sont profilés au niveau postérieur pour envelopper les condyles osseux ;- the condylar pads (la, lb) are profiled at the posterior level to wrap the bony condyles;
- les patins condyliens (la, lb) sont réunis, au niveau antérieur, directement par la partie pleine (le), sans former une trochlée ;- the condylar pads (la, lb) are joined, at the anterior level, directly by the solid part (le), without forming a trochlea;
- les patins condyliens (la, lb) présentent, au niveau de l'échancrure, des agencements de guidage postérostabilisé (ld) coopérant avec des agencements complémentaires (2a) d'une partie de l'implant tibial ;- the condylar pads (la, lb) have, at the level of the notch, posterior stabilized guide arrangements (ld) cooperating with complementary arrangements (2a) of a part of the tibial implant;
- l'implant tibial présente un plateau tibial (2) en polyéthylène monté avec capacité de déplacement limité en rotation dans un plan horizontal, dans une embase tibiale métallique fixe(3) ;- The tibial implant has a tibial plate (2) in polyethylene mounted with limited displacement capacity in rotation in a horizontal plane, in a fixed metal tibial base (3);
- les patins condyliens interne (la) et externe (lb) présentent, vus en plan, un profil symétrique par rapport à l'axe médian de l'implant, de sorte que le patin condylien interne (la) pour un genou droit représente le patin condylien externe (lb) pour un genou gauche, et inversement.- the internal (la) and external (lb) condylar pads, seen in plan, have a symmetrical profile with respect to the median axis of the implant, so that the internal condylar pad (la) for a right knee represents the external condylar pad (lb) for a left knee, and vice versa.
-2- Prothèse bicompartimentale selon la revendication 1, caractérisée en ce que les bords externes de chaque patin condylien (la, lb) convergent, au niveau postérieur, en direction de l'axe médian de l'implant.-2- Two-compartment prosthesis according to claim 1, characterized in that the external edges of each condylar pad (la, lb) converge, at the posterior level, in the direction of the median axis of the implant.
-3- Prothèse bicompartimentale selon la revendication 1, caractérisée en ce que les bords internes de chaque patin condylien (la, lb) forment, au niveau postérieur, un rayon de courbure orienté d'une manière divergente par rapport à l'axe médian de l'implant. -4- Prothèse bicompartimentale selon la revendication.!, caractérisée en ce que les agencements complémentaires (ld-2a) de guidage postérostabilisé de l'implant tibial sont formés au niveau du plateau tibial rotatoire (2). -3- Two-compartment prosthesis according to claim 1, characterized in that the internal edges of each condylar pad (la, lb) form, at the posterior level, a radius of curvature oriented in a diverging manner with respect to the median axis of the implant. -4- Two-compartment prosthesis according to claim.!, Characterized in that the complementary arrangements (ld-2a) for post-stabilized guidance of the tibial implant are formed at the level of the rotary tibial plateau (2).
PCT/FR2001/002257 2000-08-01 2001-07-12 Double-compartment knee prosthesis WO2002009624A1 (en)

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FR00/10161 2000-08-01
FR0010161A FR2812540B1 (en) 2000-08-01 2000-08-01 TWO-COMPARTMENTAL KNEE PROSTHESIS

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WO2004100839A1 (en) * 2003-05-19 2004-11-25 Eugene Sherry A prosthetic component, a method of attaching a prosthetic component to a bone, a method of performing knee replacement surgery and a frame for application to a knee joint during knee replacement surgery
US7471058B2 (en) 2003-10-08 2008-12-30 Empresa Brasileira De Compressores S.A. Starting device and starting method for a single-phase induction motor
EP2145605A3 (en) * 2008-07-16 2010-05-26 DePuy Products, Inc. Knee replacement system
US8187335B2 (en) 2008-06-30 2012-05-29 Depuy Products, Inc. Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US8192498B2 (en) 2008-06-30 2012-06-05 Depuy Products, Inc. Posterior cructiate-retaining orthopaedic knee prosthesis having controlled condylar curvature
US8202323B2 (en) 2008-07-16 2012-06-19 Depuy Products, Inc. Knee prostheses with enhanced kinematics
US8206451B2 (en) 2008-06-30 2012-06-26 Depuy Products, Inc. Posterior stabilized orthopaedic prosthesis
US8236061B2 (en) 2008-06-30 2012-08-07 Depuy Products, Inc. Orthopaedic knee prosthesis having controlled condylar curvature
WO2012116425A2 (en) 2011-03-01 2012-09-07 Whirlpool S.A. Method for starting a single-phase induction motor, starting device for a single-phase motor and starting system therefor
FR2987738A1 (en) * 2012-03-09 2013-09-13 Fournitures Hospitalieres Ind Knee prosthesis assembly for conservation of posterior cruciate ligament in patient, has tibial stud including posterior stabilization portion to be inserted into intercondylar portion and to cooperate with intercondylar bar
US8636807B2 (en) 2006-03-21 2014-01-28 Depuy (Ireland) Moment induced total arthroplasty prosthetic
US8828086B2 (en) 2008-06-30 2014-09-09 Depuy (Ireland) Orthopaedic femoral component having controlled condylar curvature
US8915965B2 (en) 2009-05-07 2014-12-23 Depuy (Ireland) Anterior stabilized knee implant
US9119723B2 (en) 2008-06-30 2015-09-01 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis assembly
US9168145B2 (en) 2008-06-30 2015-10-27 Depuy (Ireland) Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US9492280B2 (en) 2000-11-28 2016-11-15 Medidea, Llc Multiple-cam, posterior-stabilized knee prosthesis
EP3322083A1 (en) 2016-11-10 2018-05-16 Whirlpool S.A. Device, system and method for starting a single-phase induction motor
CN109172053A (en) * 2018-10-18 2019-01-11 北京四正医疗器械有限责任公司 A kind of bicompartmental knee prosthesis
US10179052B2 (en) 2016-07-28 2019-01-15 Depuy Ireland Unlimited Company Total knee implant prosthesis assembly and method

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US10188521B2 (en) 2000-11-28 2019-01-29 Medidea, Llc Multiple-cam, posterior-stabilized knee prosthesis
US9492280B2 (en) 2000-11-28 2016-11-15 Medidea, Llc Multiple-cam, posterior-stabilized knee prosthesis
WO2004100839A1 (en) * 2003-05-19 2004-11-25 Eugene Sherry A prosthetic component, a method of attaching a prosthetic component to a bone, a method of performing knee replacement surgery and a frame for application to a knee joint during knee replacement surgery
US7471058B2 (en) 2003-10-08 2008-12-30 Empresa Brasileira De Compressores S.A. Starting device and starting method for a single-phase induction motor
US8636807B2 (en) 2006-03-21 2014-01-28 Depuy (Ireland) Moment induced total arthroplasty prosthetic
US10045849B2 (en) 2006-03-21 2018-08-14 Depuy Ireland Unlimited Company Moment induced total arthroplasty prosthetic
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US8236061B2 (en) 2008-06-30 2012-08-07 Depuy Products, Inc. Orthopaedic knee prosthesis having controlled condylar curvature
US9326864B2 (en) 2008-06-30 2016-05-03 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
US11369478B2 (en) 2008-06-30 2022-06-28 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US10265180B2 (en) 2008-06-30 2019-04-23 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US8784496B2 (en) 2008-06-30 2014-07-22 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
US8795380B2 (en) 2008-06-30 2014-08-05 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
US8828086B2 (en) 2008-06-30 2014-09-09 Depuy (Ireland) Orthopaedic femoral component having controlled condylar curvature
US11337823B2 (en) 2008-06-30 2022-05-24 Depuy Ireland Unlimited Company Orthopaedic femoral component having controlled condylar curvature
US9119723B2 (en) 2008-06-30 2015-09-01 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis assembly
US9168145B2 (en) 2008-06-30 2015-10-27 Depuy (Ireland) Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US9204968B2 (en) 2008-06-30 2015-12-08 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis
US9220601B2 (en) 2008-06-30 2015-12-29 Depuy (Ireland) Orthopaedic femoral component having controlled condylar curvature
US8206451B2 (en) 2008-06-30 2012-06-26 Depuy Products, Inc. Posterior stabilized orthopaedic prosthesis
US11730602B2 (en) 2008-06-30 2023-08-22 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US10543098B2 (en) 2008-06-30 2020-01-28 Depuy Ireland Unlimited Company Orthopaedic femoral component having controlled condylar curvature
US9452053B2 (en) 2008-06-30 2016-09-27 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
US8192498B2 (en) 2008-06-30 2012-06-05 Depuy Products, Inc. Posterior cructiate-retaining orthopaedic knee prosthesis having controlled condylar curvature
US9539099B2 (en) 2008-06-30 2017-01-10 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US9931216B2 (en) 2008-06-30 2018-04-03 Depuy Ireland Unlimited Company Orthopaedic femoral component having controlled condylar curvature
US9937049B2 (en) 2008-06-30 2018-04-10 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US8187335B2 (en) 2008-06-30 2012-05-29 Depuy Products, Inc. Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US10849760B2 (en) 2008-06-30 2020-12-01 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US10179051B2 (en) 2008-06-30 2019-01-15 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US10729551B2 (en) 2008-06-30 2020-08-04 Depuy Ireland Unlimited Company Orthopaedic knee prosthesis having controlled condylar curvature
US7981159B2 (en) 2008-07-16 2011-07-19 Depuy Products, Inc. Antero-posterior placement of axis of rotation for a rotating platform
US8202323B2 (en) 2008-07-16 2012-06-19 Depuy Products, Inc. Knee prostheses with enhanced kinematics
EP2145605A3 (en) * 2008-07-16 2010-05-26 DePuy Products, Inc. Knee replacement system
US9408703B2 (en) 2009-05-07 2016-08-09 Depuy (Ireland) Anterior stabilized knee implant
US10500055B2 (en) 2009-05-07 2019-12-10 Depuy Ireland Unlimited Company Anterior stabilized knee implant
US9962264B2 (en) 2009-05-07 2018-05-08 Depuy Ireland Unlimited Company Anterior stabilized knee implant
US8915965B2 (en) 2009-05-07 2014-12-23 Depuy (Ireland) Anterior stabilized knee implant
US11564800B2 (en) 2009-05-07 2023-01-31 Depuy Ireland Unlimited Company Anterior stabilized knee implant
WO2012116425A2 (en) 2011-03-01 2012-09-07 Whirlpool S.A. Method for starting a single-phase induction motor, starting device for a single-phase motor and starting system therefor
FR2987738A1 (en) * 2012-03-09 2013-09-13 Fournitures Hospitalieres Ind Knee prosthesis assembly for conservation of posterior cruciate ligament in patient, has tibial stud including posterior stabilization portion to be inserted into intercondylar portion and to cooperate with intercondylar bar
US10179052B2 (en) 2016-07-28 2019-01-15 Depuy Ireland Unlimited Company Total knee implant prosthesis assembly and method
US11382756B2 (en) 2016-07-28 2022-07-12 Depuy Ireland Unlimited Company Total knee implant prosthesis assembly and method
EP3322083A1 (en) 2016-11-10 2018-05-16 Whirlpool S.A. Device, system and method for starting a single-phase induction motor
CN109172053A (en) * 2018-10-18 2019-01-11 北京四正医疗器械有限责任公司 A kind of bicompartmental knee prosthesis

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