FR2676916A1 - Tri-compartmental knee prosthesis with floating menisci - Google Patents

Tri-compartmental knee prosthesis with floating menisci Download PDF

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Publication number
FR2676916A1
FR2676916A1 FR9106495A FR9106495A FR2676916A1 FR 2676916 A1 FR2676916 A1 FR 2676916A1 FR 9106495 A FR9106495 A FR 9106495A FR 9106495 A FR9106495 A FR 9106495A FR 2676916 A1 FR2676916 A1 FR 2676916A1
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FR
France
Prior art keywords
tibial
gt
characterized
prosthesis according
element
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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
Application number
FR9106495A
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French (fr)
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FR2676916B1 (en
Inventor
Jeanson Jean-Francois
Legrand Arnaudlajoie Daniel
Mendolia Georges
Dubart Alain-Noel
De Leobardy Loup
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JBS
JBS SA
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JBS
JBS SA
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Filing date
Publication date
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Priority to FR9106495A priority Critical patent/FR2676916B1/en
Publication of FR2676916A1 publication Critical patent/FR2676916A1/en
Application granted granted Critical
Publication of FR2676916B1 publication Critical patent/FR2676916B1/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3868Joints for elbows or knees with sliding tibial bearing

Abstract

The invention relates to a tricompartmental knee prosthesis with floating meniscus. <BR/> This prosthesis comprises two condylar elements, a tibial element and two plastic elements forming floating meniscus. The condylar elements (11) form an integral part of a total femoral prosthesis (10); the tibial element (30) is horseshoe-shaped and comprises, on the underside, a plane surface (31), fixed against the tibial cutting plane (41), and on the top, two bearing surfaces (33, 34), inwardly inclined at an angle alpha and delimited, inwardly, by lateral stops (35, 36). <BR/> Application: bone surgery. </ P>

Description

The invention relates to a tricompartial knee prosthesis with floating meniscus.

Various techniques are already known for realizing a total knee prosthesis, which can be divided into two families, one comprising femoral patellar or trochlearal patellar prostheses, consisting of interposing between the patella and the femur a prosthesis intended for to ensure the reconstruction of the corresponding joint, injured by rheumatic or osteoarthritic, traumatic or other attacks, tending to the destruction of the articular surfaces, in particular of the trochlea and sometimes of the kneecaps causing pain and a functional insufficiency of the lock of the knee ; the prosthesis comprising, in this case, a femoral element, called "Trochlean element", and a patellar element, called "medallion", fixed under the knee cap, I other including tricompartimental total prostheses, including the replacement of the tibial trays, intended, mainly , at total reconstruction of knees after destruction very important.It is among the prostheses of the second family that fits the present invention.

Already known is a total knee prosthesis, such as that described in British Patent No. 1,534,263 of 1974, following a publication published in 1973 in "Bone and Joint Surgery" 55B, 745. This prosthesis comprises a femoral assembly bi -condylian and a flat tibial element, metalic, separated by two plastic elements ensuring the role of meniscus. However, on this prosthesis, no meniscus lateral retaining device is provided, nor is an easy replacement of the tibial element after wear.

The present invention aims to remedy inconvenient cases. The invention, as it is characterized, solves the problem of creating a tricomportimentale knee prosthesis, floating meniscus, with which, on the one hand, the lateral stresses applied to the menisci, are transmitted integrally to the element tibial, without risk of separation of it, and, secondly, the tibial element can easily be replaced in case of excessive wear.

The tricompartmental knee prosthesis, with floating menisci, according to the invention, comprising two condy links elements> a tibial element and two elements made of plastic, forming floating menisci, conforming both to the shape of the corresponding condylar element and to The tibial component is characterized mainly by the fact that the condylar elements form an integral part of a total femoral prosthesis, in that the tibial element is horseshoe-shaped and has on the underside a surface. flat, fixed against the tibial cutting plane and, on the top, two bearing surfaces inclined inwardly delimited, inwardly, by lateral stops.

The total femoral prosthesis consists of two condylar elements, separated, at the rear and at the bottom, by a groove, and united on the front by a concave part integral with a sole trochlea background.

Each of the condylar elements comprises an implant pin disposed parallel to the sole and parallel to each other, and a spherical contact surface of radius (r).

One of the condylar elements may be ruffled and suppressed as the case may be.

The inclined surfaces of the tibial element form an alpha angle of about 5 to 10 with respect to the lower planar surface.

According to a first embodiment, the tibial element is fixed, on the tibial cutting plane, by means of a tongue, located on the front, fixing by screws against the tibia, and by screws providing the clamping said tibial element on the tibial cutting plane and solidifying the assembly, in combination with the fixing screws of the tongue. Preferably, the fixing screws of the tongue of the tibial element are arranged obl ically, outwardly and rearwardly.


According to another embodiment of the invention, the tibial element is fixed against the tibial cutting plane J by means of anchoring plates joined to the tibial component by a system. dovetail tenons and mortises, arranged parallel to each other, on both sides of the central notch of the tibial element. Said anchoring plates can be made in one piece with the tibial element or removed in favor of cement direct sealing, with insertion of said cement into the mortises.

The lateral abutments laterally delimiting the bearing surfaces towards the inside of the tibial element are, in this embodiment, joined at the upper part by a horizontal cross-member, and on the front of said element. tibial, by a vertical rib extending on the sides to form frontal stops for each of the plastic elements constituting the floating meniscus.

According to a simplified embodiment of the tibial element, the horizontal cross is removed, leaving only the vertical rib.

According to a first embodiment of the inclined bearing surfaces of the tibial element they are curved, in the longitudinal direction, along a circumference of fairly large radius (R>.

According to a second embodiment of the inclined bearing surfaces of the tibial element, they are bent, in the longitudinal direction and in the transverse direction, along a sphere of fairly large radius (R> .preferentially, the radius curvature (R) is about 150 mm.

According to a simplified embodiment of the inclined support surfaces, they are flat.

The advantages achieved by this invention consist essentially in the fact that the menisci are mounted floating, without risk of lateral eviction, whatever their degree of wear, and in that the tibial element of the prosthesis can be easily replaced, totally or partially. The cross-linking of the cleaved abutment surfaces of the tibial element avoids, in the majority of cases, the cutting of the internal cortex of the insertion of the anterior cross-fit and # eliminates the risk of dislodgement. .

Other features and advantages will appear in the following description of two embodiments of the prosthesis according to the invention, given by way of non-limiting example with reference to the accompanying drawings in which - Figure 1 shows a front view. of the mode of realization
the simplest form of the prosthesis; FIG. 2 shows a longitudinal sectional view of the prosthesis;
of the prosthesis according to Figure 1, Figure 3 shows a view from below of the element
femoral part of the prosthesis, Figure 4 shows a view from below, in perspec
tive, the femoral component of the prosthesis according to the figure
1, Figure 5 shows a partial section of the condyles
according to the cutting plane AA, following F, focused on the fi
Figures 3 and 4; Figure 6 shows a condylar femoral component
Figure 7 shows a condylated femoral component
right, figure 8 represents a half-view of a pro
thesis with support surface of # tibial element bulging into
the longitudinal direction, according to a circumference of large
radius (R), the figure represents a side view of the prosthesis,
In FIG. 8, FIG. 10 represents a half-view of a pro
thesis with bearing surface of the tibial element bulging into
the two directions along a sphere of large radius (R), the figure 11 represents a side view of the mode of realization.
of the prosthesis according to FIG. 10, FIG. 12 represents a view from above of the element
tibial of the prosthesis, - Figure 13 represents a front view, in perspective,
of the tibial component of the prosthesis - Figure 14 shows a front view of the mode of
preferred embodiment of the prosthesis; FIG. 15 shows a side view, in longitudinal section;
tudinal, the prosthesis according to Figure 7, - the figure shows you a front view, in perspective,
of a mode of real isation, with upper crossbar,
the tibial element of the prosthesis; FIG. 17 represents a front view, in perspective,
of a simplified embodiment of the tibial element
of the prosthesis, shown in Figure 16.

The figures show a tricomparent knee prosthesis, with floating meniscus, comprising a total femoral prosthesis 10 with condylar elements 11 and 12, with fixing tufts 111 and 121, separated by a groove 13, connected on the front, by a sole 14; floating meniscuses 21 and 22; a tibial element, shaped horseshoe 30, having, on the underside, a flat surface 31, held in abutment against the tibial cutting plane 41 by screws 5, on the front, a tongue 32 being fixed against the 40 tibia by screws 6> and, on the top, two inclined bearing surfaces 33 and 34, delimited, inwardly, by lateral stops 35 and 36, or a tibial element, shaped horseshoe 80, SOJ forming supports having, on the underside, a flat surface 81, 91, held in abutment against the tibial cutting plane 41 by cement or by means of implantation plates 70, reported under the said element tibial by a system of dovetail pins 71 and mortises of the same section 82, 92.

The tibial element 80, J 90 has cleaved bearing surfaces 83, 84 - 93, 94, delimited, inwardly, by lateral abutments 85, 86 - 95, 96 connected horizontally by. a cross-member 87 and a frontal rib 88, 98, with lateral extensions 881, 882-981, 982. The horizontal cross-member 87 may, in a simplified embodiment, be omitted in favor of the frontal rib 98
By examining in more detail Figures 1, 2, 8 and 10, it is noted that the inward inclination of the surfaces 33, 34 - 83, 84 and 93, 94 of the tibial element 30, 80 or 90 promotes the permanent maintenance of the meniscus 21 and 22 to the lateral stops 35 and 36, which prevents any eviction of said meniscus outwards.

Referring to Figures 1 to 7, it is noted that the total femoral prosthesis can be easily set up, after making the necessary bone recessions, using the femoral cutting guide which is the subject of the French patent application No. 90 08595 .

As for the tibial elements 30, 80, 90, shown in FIGS. 12, 13, 16, 17, they may easily be fixed using screws 5 and 6 or implantation plates 70, after having carried out the corresponding bone recession, using the tibial cutting guide described in French Patent Application No. 91 00492; the tibial element 80, 90 being able, in the embodiment corresponding to FIGS. 16 and 17, to be easily mounted on the cutting plane 41 of the tibia 40, by simply engaging the implantation plates 70 in grooves of the same width and of the same spacing, in the plane of section 41. The medians 21 and 22 are placed in place on the inclined surfaces 83, 84 - 93, 94> said meniscus, of appropriate shape according to the The shape of the abutment surfaces (flat, curved in one direction or curved in all directions) and the shape of the contact surface of the condyles 11, 12 will be positioned at the request of the condyles 11.

12, thereby providing floating operation to said menisci, which remain, however, always biased toward their side stops 35, 36, 85, 86 or 95, 96 through the inclined surfaces 33, 34, 83, 84 , 93, 94.

With reference to FIGS. 8 to 11, FIGS. 8 and 9 show a tibial element 301, with bearing surfaces 331 inclined at an angle alpha, curved in the longitudinal direction along a circumference of radius (R). , on which rest the floating meniscuses 211 of the same shape, limited in their lateral displacement by stops 351. The said tibial element 301 resting, by its lower face 311, cut the cutting plane 41 of the tibia 40 and being fixed on the This is achieved by means of a tongue 321 and screws 6. FIGS. 10 and 11 show a tibial element 302, with bearing surfaces 332 inclined at an angle alpha, curved in all directions. direction according to a sphere of radius (R), on which rest floating men 212 of the same shape, limited in their lateral displacement by abutments 352. Said tibial element 302 resting, by its lower face 312, against the plane cutting 41 of 40 tibia and eta nt fixed on it, by means of a tongue 322 and screws 6.

 According to a simplified embodiment of the tibial element with spherical bearing surfaces, the alpha inclination of these is reduced to zero, for easy realization, since in this case the floating meniscus are retained laterally by the transverse curvature of said surface.

The condylar elements 11, 12 being perfectly solidified laterally, via the sole 14, on the one hand, and by their implantation in the femur 9 via the fixing lugs 111 and 121, on the other hand The tricompartmental prosthesis, thus produced, can cope with all stresses, without risk of incident, even in the cases shown in Figures 6 and 7. The separation of the condylar elements, with trochlea, offers the possibility of a femoro prosthesis -tibial and femoro-patellar, combined and monoblanc, offering the following advantages: 1) simple cut, 2) stable set, 3) good medial and lateral sliding, both on the ar
patello-patellar articulation only on the joint
Femoral tibial meniscal, offering the benefits already mentioned> 4ì good fixation by plasma of titanium, alone or associated with
hydroxyl apatite, or> still, to screws, or to a
implantation by grooved plates, with interpo
sition, or not, of cement; it being understood that
always possible to resort only to fixation by
cement, 5) decrease in flexural tension and increase in
this one as the extension, O> reduction of the risks of dislocation, thanks to the rim
posterior of the menisci, which are, in fact,
thicker, 7t to allow all femoral anatomical movements
and tibial.

 It should be emphasized that # the one-piece condyles and trochlea can be used with menisci of different thickness on one side to the other; which allows axis corrections or catch-up thickness.

Claims (1)

    Claims. 1. Three-compartment knee prosthesis> floating meniscus, comprising two condylar elements, a tibial element and two floating meniscus plastic elements, conforming both to the shape of the corresponding condylar element and to the tibial element characterized in that the condylar elements (11, 12) are an integral part of a total femoral prosthesis (10), in that the tibial element (30, 80, 90) is horseshoe-shaped and comprises, on the underside, a flat surface (31, 81, 91), fixed against the tibial cutting plane (41), and, on top, two bearing surfaces (33, 34 - 83,
  1.  84 - 93, 94t inwardly inclined, delimited, inwardly, by lateral abutments (35, 36 - 85, 86 - 95, 96). 2. Prosthesis according to claim 1, characterized in that the prosthesis femoral total C10) consists of two condylar elements (11, 12), separated, on the back and on the underside, by a groove (13> and joined, on
    I # 'before, by a concave portion integral with a sole (14> fixing on the front and serving trochlea bottom.
    3. Prosthesis according to claim 1 or 2, characterized in that each of the condylar elements (11, 12tcomporte an implantation stud (111, 121), arranged parallel to the sole (la) and parallel to each other.
    4. Prosthesis according to claim 1 or 2, characterized in that the condyl iens elements (11, 12) have a spherical contact surface of radius (r). 5. Prosthesis according to claim 1 or 2, characterized in that the one of the condylar elements (11 or 12) can be, at will, deleted according to the case.
    6. Prosthesis according to claim 1, characterized in that the bearing surfaces (33, 34 - 83, 84 - 93, 94t of the tibial element (30, 80, 90> are inclined towards the inside of an alpha angle of about 5 to 10 with respect to the lower planar surface.
    7. Prosthesis according to claim 1, characterized in that the tibial elements C30) is fixed against the tibial cutting plane (41> via a tongue (32), located on the front, being fixed by screw (6) against the tibia (40), and by screws (5) ensuring the tightening of said tibial element (30> on the tibial cutting plane C41t and the solidification of the assembly (30, 40), in combination with the screws (6> located on the front.
    8. Prosthesis according to claim 7, characterized in that the fixing screws (6) of the tongue (32, 321, 322) of the tibial element (30, 301, 302) are arranged obliquely towards the outside and backwards.
    9. Prosthesis according to claim 1, characterized in that the tibial element (80, 90) is fixed against the tibial plane (41> by means of implantation plates (70), joined by a system of tenons ( 71) and meshes (82), dovetail, arranged parallel to each other, on either side of the central notch of said tibial element (80, 90) 10. Prosthesis according to claim g, characterized in that the tibial element (80, 90) and the anchoring plates (70> are made in one and the same piece.
    11. Prosthesis according to claim g, characterized in that the tibial element (80, 90) is sealed directly on
     the tibial cutting plane (41), by interposition of cement, with insertion of cement into the dovetail mortises (82, 92>.
     12. Prosthesis according to claim 1 or g, characterized in that the stops (85, 86 - 95, 96), laterally delimiting the bearing surfaces towards the inside of the tibial element (80, 90), are united. at the top, by a horizontal crossbar (87> and, on the front, by a front rib (88), extending on the sides to form forward stops (881, 332t for the floating meniscus (21, 22 )
     13. Prosthesis according to claim 12, characterized in that the horizontal cross member (87> is removed to leave only the front rib (88).
    14. Prosthesis according to claim 1, characterized in that the inwardly inclined bearing surfaces (331) of the tibial element (301) are curved in the longitudinal direction, with a circumference of approximately large radius (R).
    15. Prosthesis according to claim 1, characterized in that the bearing surfaces (332> of the tibial element (302) are curved in the longitudinal and transverse direction, in a sphere of fairly large radius (R> 15. Prosthesis according to claim 14 or 15, characterized in that the radius (R) of the convex bearing surfaces of the tibial element (301, 302ì is about 150 mm.
    17. Prosthesis according to claim 1, characterized in that the bearing surfaces (33, 34t inclined towards the inside of the tibial element C30) are planar.
FR9106495A 1991-05-30 1991-05-30 Tricompartmental knee prosthesis has menisci floating. Expired - Fee Related FR2676916B1 (en)

Priority Applications (1)

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FR9106495A FR2676916B1 (en) 1991-05-30 1991-05-30 Tricompartmental knee prosthesis has menisci floating.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9106495A FR2676916B1 (en) 1991-05-30 1991-05-30 Tricompartmental knee prosthesis has menisci floating.
ES9201114A ES2038929B1 (en) 1991-05-30 1992-05-29 Tricompartmental knee prosthesis floating menisci.
ITUD920103 IT1259475B (en) 1991-05-30 1992-05-29 Knee prostheses with three compartment oscillating menisci

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FR2676916A1 true FR2676916A1 (en) 1992-12-04
FR2676916B1 FR2676916B1 (en) 1997-03-28

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699399A1 (en) * 1992-12-17 1994-06-24 Luer Sa Artificial knee prosthesis
FR2714819A1 (en) * 1994-01-10 1995-07-13 Billy Jean Louis Knee joint replacement prosthesis components
WO1996001087A1 (en) * 1994-07-06 1996-01-18 British Technology Group Limited Endoprosthetic knee joint device
EP0950387A1 (en) * 1998-04-15 1999-10-20 Aesculap Knee prosthesis
EP1011542A1 (en) * 1997-06-20 2000-06-28 Frederick F. Buechel Meniscal bearing platform and bearings for joint endoprosthesis
US6102954A (en) * 1992-05-18 2000-08-15 Astra Aktiebolag Joint prosthesis and apparatus for preparing the bone prior to fitting of the prosthesis
WO2000076428A1 (en) * 1999-06-16 2000-12-21 Btg International Limited Tibial component of a knee prosthesis
WO2003094782A2 (en) * 2002-05-08 2003-11-20 Mathys Medizinaltechnik Ag Self-aligning knee prosthesis
WO2004000175A1 (en) * 2002-06-20 2003-12-31 Angus Everett Strover Unicompartmental prosthetic knee joint device
US8066776B2 (en) 2001-12-14 2011-11-29 Btg International Limited Tibial component
WO2013101582A1 (en) * 2011-12-29 2013-07-04 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
US8728167B2 (en) 2011-01-10 2014-05-20 Howmedica Osteonics Corp. Bicruciate retaining tibial baseplate design and method of implantation
EP2962667A1 (en) * 2014-07-03 2016-01-06 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
US9345578B2 (en) 2013-02-22 2016-05-24 Stryker Corporation Bicruciate retaining tibial implant system
US9668871B2 (en) 2011-12-29 2017-06-06 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
USD841810S1 (en) 2011-12-29 2019-02-26 Mako Surgical Corp. Tibial baseplate
US10231840B2 (en) 2016-07-27 2019-03-19 Howmedica Osteonics Corp. Low profile tibial baseplate with fixation members
USD854157S1 (en) 2011-12-29 2019-07-16 Mako Surgical Corp. Tibial implant components

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD744104S1 (en) 2011-12-29 2015-11-24 Mako Surgical Corp. Femoral implant component

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FR2290883A1 (en) * 1974-11-18 1976-06-11 Nat Res Dev A knee joint endoprosthesis
FR2417293A1 (en) * 1978-02-17 1979-09-14 Helfet Arthur Prothese of intercondylar IMPROVED join
US4586933A (en) * 1983-09-30 1986-05-06 Hiromu Shoji Dual articulating total knee prosthesis
EP0183669A2 (en) * 1984-11-28 1986-06-04 Per-Ingvar Branemark Joint prosthesis
WO1987002881A1 (en) * 1985-11-14 1987-05-21 Jean Manuel Aubaniac Tibial plateau for knee endoprosthesis
WO1989009578A1 (en) * 1988-04-11 1989-10-19 Albrektsson Bjoern Knee-joint prosthesis
EP0375582A1 (en) * 1988-12-20 1990-06-27 S.P.O.R.T. Anchoring device for a knee prosthesis
EP0442330A2 (en) * 1990-02-16 1991-08-21 Friatec Aktiengesellschaft Keramik- und Kunststoffwerke Kneejoint endroprosthesis

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US4353136A (en) * 1980-11-05 1982-10-12 Polyzoides Apostolos J Endoprosthetic knee joint
GB8817908D0 (en) * 1988-07-27 1988-09-01 Howmedica Tibial component for replacement knee prosthesis

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FR2290883A1 (en) * 1974-11-18 1976-06-11 Nat Res Dev A knee joint endoprosthesis
FR2417293A1 (en) * 1978-02-17 1979-09-14 Helfet Arthur Prothese of intercondylar IMPROVED join
US4586933A (en) * 1983-09-30 1986-05-06 Hiromu Shoji Dual articulating total knee prosthesis
EP0183669A2 (en) * 1984-11-28 1986-06-04 Per-Ingvar Branemark Joint prosthesis
WO1987002881A1 (en) * 1985-11-14 1987-05-21 Jean Manuel Aubaniac Tibial plateau for knee endoprosthesis
WO1989009578A1 (en) * 1988-04-11 1989-10-19 Albrektsson Bjoern Knee-joint prosthesis
EP0375582A1 (en) * 1988-12-20 1990-06-27 S.P.O.R.T. Anchoring device for a knee prosthesis
EP0442330A2 (en) * 1990-02-16 1991-08-21 Friatec Aktiengesellschaft Keramik- und Kunststoffwerke Kneejoint endroprosthesis

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6102954A (en) * 1992-05-18 2000-08-15 Astra Aktiebolag Joint prosthesis and apparatus for preparing the bone prior to fitting of the prosthesis
FR2699399A1 (en) * 1992-12-17 1994-06-24 Luer Sa Artificial knee prosthesis
EP0670151A2 (en) * 1994-01-10 1995-09-06 Jean-Louis Billy Knee prothesis
EP0670151A3 (en) * 1994-01-10 1997-12-29 Jean-Louis Billy Knee prothesis
FR2714819A1 (en) * 1994-01-10 1995-07-13 Billy Jean Louis Knee joint replacement prosthesis components
WO1996001087A1 (en) * 1994-07-06 1996-01-18 British Technology Group Limited Endoprosthetic knee joint device
US5871542A (en) * 1994-07-06 1999-02-16 British Technology Group Limited Endoprosthetic knee joint device
EP1011542A4 (en) * 1997-06-20 2003-01-02 Michael J Pappas Meniscal bearing platform and bearings for joint endoprosthesis
EP1011542A1 (en) * 1997-06-20 2000-06-28 Frederick F. Buechel Meniscal bearing platform and bearings for joint endoprosthesis
FR2777452A1 (en) * 1998-04-15 1999-10-22 Aesculap Sa Knee Prosthesis
EP0950387A1 (en) * 1998-04-15 1999-10-20 Aesculap Knee prosthesis
US6210443B1 (en) 1998-04-15 2001-04-03 Aesculap Knee prosthetics
WO2000076428A1 (en) * 1999-06-16 2000-12-21 Btg International Limited Tibial component of a knee prosthesis
US7060101B2 (en) 1999-06-16 2006-06-13 Btg International Limited Tibial component
US10383738B2 (en) 1999-06-16 2019-08-20 Btg International Limited Tibial component
US8066776B2 (en) 2001-12-14 2011-11-29 Btg International Limited Tibial component
WO2003094782A3 (en) * 2002-05-08 2004-03-04 Mathys Medizinaltechnik Ag Self-aligning knee prosthesis
WO2003094782A2 (en) * 2002-05-08 2003-11-20 Mathys Medizinaltechnik Ag Self-aligning knee prosthesis
JP2011050762A (en) * 2002-05-08 2011-03-17 Mathys Medizinaltechnik Ag Self-aligning knee prosthesis
JP4820547B2 (en) * 2002-05-08 2011-11-24 マティス メディツィーナルテヒニク アーゲーMathys Medizinaltechnik AG Self-aligning knee prosthesis
JP2005532089A (en) * 2002-05-08 2005-10-27 マティス メディツィーナルテヒニク アーゲーMathys Medizinaltechnik AG Auto-aligned knee prosthesis
WO2004000175A1 (en) * 2002-06-20 2003-12-31 Angus Everett Strover Unicompartmental prosthetic knee joint device
US8728167B2 (en) 2011-01-10 2014-05-20 Howmedica Osteonics Corp. Bicruciate retaining tibial baseplate design and method of implantation
US9198762B2 (en) 2011-01-10 2015-12-01 Howmedica Osteonics Corp. Bicruciate retaining tibial baseplate
WO2013101582A1 (en) * 2011-12-29 2013-07-04 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
CN104135969A (en) * 2011-12-29 2014-11-05 马科外科公司 Cruciate-retaining tibial prosthesis
US9668871B2 (en) 2011-12-29 2017-06-06 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
USD841810S1 (en) 2011-12-29 2019-02-26 Mako Surgical Corp. Tibial baseplate
USD854157S1 (en) 2011-12-29 2019-07-16 Mako Surgical Corp. Tibial implant components
US9345578B2 (en) 2013-02-22 2016-05-24 Stryker Corporation Bicruciate retaining tibial implant system
EP2962667A1 (en) * 2014-07-03 2016-01-06 Mako Surgical Corp. Cruciate-retaining tibial prosthesis
US10231840B2 (en) 2016-07-27 2019-03-19 Howmedica Osteonics Corp. Low profile tibial baseplate with fixation members

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Publication number Publication date
ITUD920103A1 (en) 1992-11-30
ES2038929B1 (en) 1994-02-16
ES2038929A1 (en) 1993-08-01
IT1259475B (en) 1996-03-20
ITUD920103D0 (en) 1992-05-29
FR2676916B1 (en) 1997-03-28

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