Abstract: A method of positioning a malleolar implant for partial or total ankle prosthesis wherein the implant includes a head intended to bear against the astragalus or astragalian prosthetic component and a shank provided to be introduced in a bore in the fibula including providing an orifice in the shank and inserting the implant in the bore by use of force applied along a flexible traction member extending through the orifice.

Abstract: This ancillary tool (1) comprises a plate (4) which defines a convex surface (12) intended to bear against the glenoid cavity of a patient's scapula (2) and which forms a directional guide for a drilling, fashioning or like member. To allow the surgeon to apply this member in a chosen direction (C—C), the tool (1) comprises means (6) for adjusting the position of the guide with respect to the plate (6).

Abstract: The ancillary tool according to the invention comprises a handle for manipulating an acetabulum provided, in its distal part, with a head for gripping the acetabulum and, in its proximal part, with a surface for application of a force of impaction. The tool further comprises at least one added endpiece adapted to be removably connected to the distal end of the handle. This endpiece defines both a face for wedging the acetabulum and an opposite face for interaction of the endpiece with the head of the handle, these faces both being borne by a radially deformable supple ring.

Abstract: The invention concerns an osteosynthesis plate designed for osteosynthesis of displaced fracture of the upper end of the arm bone comprising a T-shaped main body (2) whereof the longitudinal branch (3) and the transverse branch (4) are respectively perforated with holes (5, 6, 8) for passing through screws for anchoring and fixing said plate against the outer profile of a bone, and fixing lugs (9) which extend from each side of the transverse branch (4) of the main body (2), said lugs being less thick than the main body and perforated with holes (10) which co-operate with other anchoring screws for completely fixing bone fragments when urged in contact with the bone external profile.

Abstract: A patellar implant for total or partial prosthesis of the knee joint incorporates an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component. The inner and outer articular surfaces are separated by a transition ridge which is curved, as viewed from a front of the implant, so as to be concave facing the outer articular surface. The outer articular surface is concave in a plane parallel to a sagittal plane and in a transverse plane of the knee joint.

Abstract: An elbow prosthesis which includes a humeral component having a rod extending along a longitudinal axis and this component further includes a generally cylindrical body having a first articulating surface about which an ulnar component is pivotally mounted so as to pivot about a longitudinal axis of the body. A spacing between a plane extending through the longitudinal axis of the body and the longitudinal of the rod of the humeral component is selected to define a desirable spacing therebetween depending upon a patient's morphology.

Abstract: In order to package a prosthetic implant made of polyethylene in sterile manner, this implant is placed in a flexible, gas-impermeable sachet adapted to be closed, a vacuum is created in this sachet before it is hermetically closed, this sachet is placed in a gas-impermeable envelope adapted to be closed, an inert gaseous atmosphere is formed in the envelope, the envelope is closed hermetically, and the assembly formed by the implant, the sachet and the envelope is exposed to radiation.

Abstract: A shoulder prosthesis glenoid component which includes a base adapted to be immobilized on a glenoid cavity of a shoulder, and an element including a convex articulation surface adapted to cooperate with a humeral component of the prosthesis. The element is selectively mounted on the base in a plurality of positions corresponding to different positions of the convex articulation surface with respect to the glenoid cavity.

Abstract: The prosthesis of this invention comprises a humeral or femoral component presenting a concave articulation surface, and an intermediate component presenting first and second convex articulation surfaces intended to cooperate respectively with said concave articulation surface of the humeral or femoral component and with a concave glenoid or cotyloid articulation surface. The locus of the instantaneous centres of rotation of the first convex articulation surface, with respect to the concave humeral or femoral articulation surface, and the locus of the instantaneous centres of rotation of the second convex articulation surface on the glenoid or cotyloid surface, are located on either side of the first surface.

Abstract: This shoulder prosthesis glenoid component comprises a base adapted to be immobilized on the glenoid cavity of a shoulder, and an element forming a convex articulation surface adapted to cooperate with a humeral component of the prosthesis. This element is adapted to be mounted on the base in a plurality of positions respectively corresponding to different positions of the articulation surface with respect to the glenoid cavity.

Abstract: This invention relates to a prosthetic element comprising two principal components intended to be assembled together and immobilized with respect to each other by means of a screw, which may be screwed by means of at least one thread in two tappings which are respectively fast or intended to be rendered fast with one and the other principal components. The screw comprises at least one radial element in relief adapted to come into abutment against a stop surface fast with a first component, and a non-threaded end forming guide finger and adapted to slide in a housing, of cross-section correspondiong to that of this finger and made in the second component.

Abstract: A device for setting and removing a deformable implant from bone wherein the device includes a body on which is mounted a movable handle which is operatively connected to activating elements for displacing a rod relative to the body for deforming and/or removing an implant from the bone. The device further includes a rod locking and disengaging assembly which is movable from a first position to prevent movement of the rod to a second position to permit movement of the rod relative to the body.

Abstract: Total prosthesis of a knee including a femoral element fitted with two condyles, a first of the condyles being external, a second of the condyles being internal, and a tibial plateau fitted with custom-made recesses to hold the condyles, wherein at least one of the condyles is integral on one of its sides with a convex cam ensuring posterior stability of the prosthesis. The tibial plateau has at least one track placed in the immediate vicinity of the recess holding the condyle integral with the cam, the at least one track being circumscribed by at least one curved abutment and at least one horizontal recess between posterior and anterior extremities of the tibial plateau. Provision is made between the condyles of the femoral element and the recesses of the tibial plateau for a free space and a notch for passage of a posterior cruciate ligament of a knee.

Abstract: This patellar implant for total or partial prosthesis of the knee joint incorporates an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component and joined together by a transition ridge. The ridge is curved as viewed from the front of said implant, with a concavity facing the outer articular surface, while the outer articular surface is concave in a plane parallel to the sagittal plane and in a transverse plane.

Abstract: A device for fixing an implant in a patient's bone which includes an expanding element which is limited in it's plastic deformation when a force is applied for fixing the implant in the bone, such that the expanding element is reversible when another force is applied for removing the implant from the bone.

Abstract: This invention relates to a malleolar implant for partial or total ankle prosthesis, comprising a head, intended to bear against the astragalus or astragalian prosthetic component and a shank provided to be introduced in a bore in the fibula, characterized in that said shank is provided with means for hooking a traction member adapted to be manoeuvred from the outer side of the fibula, in order to position said shank in said bore.

Abstract: This invention relates to a malleolar implant for partial or total ankle prosthesis, comprising a head, intended to bear against the astragalus or astragalian prosthetic component and a shank provided to be introduced in a bore in the fibula, characterized in that said shank is provided with means for hooking a traction member adapted to be manoeuvred from the outer side of the fibula, in order to position said shank in said bore.

Abstract: This ancillary tool comprises a guiding tool (30) for boring the humeral trochlea (T) along the geometric axis (X-X′) of bend of the joint to be equipped, this tool comprising a stirrup element (31) adapted to be immobilized on the trochlea (T). This tool (30) defines a guiding zone (35c, 33d, 36a) for the introduction (F1) of a drill (40) in this trochlea (T) along the afore-mentioned axis (X-X′) of bend. This ancillary tool further comprises at least one stepped template for determining the anterior offset of this axis of bend (X-X′) with respect to the humeral diaphyseal axis.

Abstract: This ancillary tool (10) comprises a guide (30) for cut-out of the ulna (C) and/or the radius (R) intended to be positioned with respect to a trial humeral trochlea (202) belonging also to said ancillary tool and representative of the anatomical humeral trochlea when this trial trochlea is in place with respect to the corresponding cubital (SC) and/or radial (SR) articular surfaces.

Abstract: A malleolar implant for partial or total ankle prosthesis which includes a head having a surface to bear against an astragalus or astragalian prosthetic component and from which head extends a shank adapted to be inserted through a bore in a fibula wherein the shank is provided with means for hooking a traction member which is adapted to be inserted through the bore in the fibula in order to apply a force to pull the implant into the bore such that the implant is seated within the bore of the fibula.