Abstract: A prosthetic component includes an adaptor having a first end and a second end. The first end includes an elongated male tapered body. The second end includes a flange extending radially outwardly from the male tapered body and having an anti-rotational/anatomically orientation component formed therewith. The second end also includes a female tapered aperture formed therein which has an anti-rotational/anatomical orientation component formed therewith. The flange may include an elongated portion having a porous annular surface thereon.

Abstract: A trochlear implant for a prosthetic knee, a prosthetic knee system and a method for using the prosthetic knee system are disclosed. The trochlear implant mounts to the knee end of a femur and cooperates with a patellar implant mounted to the back side of a patella. The patellar implant is a component of a prosthesis including a femoral implant for replacing the knee end of the femur. The trochlear implant has an articulation surface shaped to slidably receive a portion of the patellar implant. The articulation surface is substantially similar in shape to a portion of a surface of the femoral implant such that the patellar implant is capable of being used with the femoral implant and the trochlear implant.

Abstract: A prosthetic component includes an adaptor having a first end and a second end. The first end includes an elongated male tapered body. The second end includes a flange extending radially outwardly from the male tapered body and having an anti-rotational/anatomically orientation component formed therewith. The second end also includes a female tapered aperture formed therein which has an anti-rotational/anatomical orientation component formed therewith. The flange may include an elongated portion having a porous annular surface thereon.

Abstract: A knee arthroplasty prosthesis includes a femoral component having multiple pieces with engagement means provided for engaging various pieces of the femoral component to one another following their insertion in the incised area of the femur. A tibial component includes multiple pieces designed for assembly following positioning in the incision. The tibial component includes a Morse taper cavity on one piece of the tibial component and a Morse taper extension on another member of the component for receipt therein.

Abstract: Improved bone-cutting guides enable a surgeon to better gauge required resection characteristics. A body having an outer surface and an inner surface configured to be positioned against a bone surface to be modified includes one or more openings enabling a bone-cutting tool to be used though the body so as to perform resections beneath the inner surface. To stabilize the bone-cutting tool during the execution of a particular resection, the invention preferably further includes one of more guides which may be temporarily positioned relative to the upper surface of the body. In one embodiment, the outer surface of the body may be shaped to co-act in a joint as part of a trial reduction. For example, the outer surface may be shaped according to a natural proximal tibia, enabling a knee joint reduction to be performed prior to resection.

Abstract: A patellar alignment device for determining the position of a patella prosthesis. The device comprises two components—a baseplate and a mobile component which is preferably magnetically attached to the baseplate. During a surgical procedure to replace the knee, the baseplate is temporarily attached to the back of the patella. The baseplate may contain spikes or prongs to secure it to the patella. The baseplate further includes a series of slots for marking the patella. The mobile component resembles a patella and is placed on the baseplate. The patella with the alignment device in place is then placed in position on the knee and trialed. Because the mobile component is free to move on the baseplate, it finds the position that is most amenable to a natural knee movement. The alignment device is then exposed and the patella is marked at the position of the mobile component. Since the baseplate contains a series of slots, the patella can be easily marked at several locations around the mobile component.

Abstract: A nonmodular tibial prosthesis having a retainer for a modular bearing on the superior surface of a tibial base, a nonmodular primary bearing directly molded to the base, and a mechanical release member mounted on the tibial base in contact with the nonmodular primary bearing. The release member includes a wedge portion with a superiorly posteriorly inclined face, and is designed to be driven anteriorly upon actuation so as to force the primary bearing off of the tibial base, after which the primary bearing and release member are removed and replaced with a modular bearing.

Abstract: A knee prosthesis has a medial condyle (1) and a lateral condyle (5), the running surfaces (2) of which and the counter-surfaces A, B of which that lie on a tibia platform (3) are sections of spherical surfaces with radii R1, R2, with their center M1′ and M2′ forming in their vertical projection onto the counter-surfaces A, B the points M1, M2. The lateral counter-surface B belongs to a lateral meniscus part (7) which, guided on a plane (13) of the tibia platform, is pivotal with the point M2 on a circular arc with radius R3 about the point M1, with the radius R3 corresponding to the distance a of the centers M1′, M2′.

Abstract: A tibial prosthesis includes a tibial platform having a medial-lateral center and an inferior surface matable with a resected proximal tibia, and a modular keel that is fixable to the inferior surface and adjustable in a medial-lateral direction with respect to the medial-lateral center of the tibial platform.

Abstract: A modular tibial component for a knee joint prosthesis. The modular tibial component includes a tray, a stem and an adapter assembly. The tray includes a support surface and downwardly extending extension having a generally circular shape. The stem includes a main body portion and an upwardly extending extension. The adapter assembly connects the tray and the stem. The adapter assembly includes a first generally cylindrical cavity receiving the downwardly extending extension of the tray and a second generally cylindrical cavity receiving the upwardly extension of the stem.

Abstract: The present invention provides a knee prosthesis having a femoral component having a pair of spaced apart condylar portions and a boss structure extending between the condylar portions. The boss structure has a top surface that extends generally horizontally in a transverse plane and an opposed inferior surface. The knee prosthesis also includes a stem component having a proximal end and a distal end. The knee prosthesis further includes an attachment nut for securing the stem member to the femoral component.

Abstract: A knee prosthesis including a tibial component and a meniscal component adapted to be engaged through the tibial component through an asymmetrical engagement.

Abstract: Joint endoprosthesis with an anchoring part (3) and a cone connection (4) between a joint part (1) and the anchoring part (3). According to the invention, the cone connection is provided with an anti-rotation arrangement (13, 14). It can also be equipped with a securing screw (8).

Abstract: A nonmodular tibial prosthesis having a retainer for a modular bearing on the superior surface of a tibial base, a nonmodular primary bearing directly molded to the base, and a mechanical release member mounted on the tibial base in contact with the nonmodular primary bearing. The release member includes a wedge portion with a superiorly posteriorly inclined face, and is designed to be driven anteriorly upon actuation so as to force the primary bearing off of the tibial base, after which the primary bearing and release member are removed and replaced with a modular bearing.

Abstract: A set of femoral orthopedic devices includes a first component having a first size and a second component having a second size. The first component includes a peg positioned a predetermined distance from a first reference point The second component includes a peg positioned said predetermined distance from said first reference point. The method calls for referencing a femoral condyle at a first reference point, locating a peg aperture a predetermined distance from the first reference point, selecting a sized femoral component, and implanting the femoral component. The size of the femoral component is defined by a distance from the peg to a second reference point.

Abstract: A prosthetic replacement knee joint includes a tibial component, a femoral component, a bearing and a control arm. The tibial component has a superior bearing surface and a conical recess extending into the superior bearing surface. The bearing has an inferior surface slidably engaged with the superior surface of the tibial component and formed with a dovetailed groove therein. The bearing also has a concave superior surface. A notch extends into the posterior extreme of the bearing. The femoral component has a pair of convex arcuate condyles in articular bearing engagement with the superior surface of the bearing. The femoral component also includes a posterior notch having a minor medial-lateral width at the inferior surface of the femoral component and a major width at more superior locations on the femoral component. The control arm has a conical bearing rotatable positioned in the conical recess of the tibial component.

Abstract: A modular knee system includes a hinged femoral component and a distal femoral component. A plurality of first stem components are selectively compatible with the hinged femoral component. A plurality of first adaptors are selectively compatible with the first stem components and the distal femoral component. A hinge component is connected to a tibial insert. The hinge component and the tibial insert are selectively compatible with the hinged femoral component and the distal femoral component. A hinged tibial component and a proximal tibial component are selectively compatible with the tibial insert. A plurality of second stem components are selectively compatible with the hinged tibial component. Alternately, a plug component is compatible with the hinged tibial component. A plurality of second adaptors are selectively compatible with the second stem components and the proximal tibial component.

Abstract: A modular tibial component for a knee joint prosthesis. The modular tibial component includes a tray, a stem and an adapter assembly. The tray includes a support surface and downwardly extending extension having a generally circular shape. The stem includes a main body portion and an upwardly extending extension. The adapter assembly connects the tray and the stem. The adapter assembly includes a first generally cylindrical cavity receiving the downwardly extending extension of the tray and a second generally cylindrical cavity receiving the upwardly extension of the stem.

Abstract: An orthopaedic device for implanting on a bone includes a first component having a socket forming a first member of a morse taper lock. A second component has an end forming a second member of a morse taper lock received in the socket. A protuberance is provided on one of the first and second members. Impacting the second component inserted in the socket seats the second component in the socket, and creates a localized deformation of the interference fit between the first and second components and establishes a barrier to the passage of debris.

Abstract: A knee prosthesis femoral implant includes two condyles integral with a throchlea and a centro-medullary block adapted to be fixed on a support base arranged between the condyles. The implant includes a wedge linking the base and the block. There is appropriate angular positioning of the wedge and the block both in a valgus front plane and in a sagittal plane relative to the reference front plane. The wedge has flat proximal and distal faces forming between them a predetermined angle (&bgr;) which, combined with an angle of inclination (&agr;) at the base surface receiving the wedge, enables, depending on the orientation of the wedge, two different femoral valgus values for each wedge. The wedge can also have different profiles in the sagittal plane. The invention enables a wide range of possibilities for adjusting the femoral valgus and for positioning the wedge in an antero-posterior plane relative to a reference plane, with a reduced number of wedges.

Abstract: A method and apparatus for enabling access to an intramedullary canal of a femur through a femoral knee joint prosthesis includes a first condylar portion and a second condylar portion. The first condylar portion has a first femoral bearing surface and the second condylar portion has a second femoral bearing surface. An inner condylar portion extends between the first condylar portion and the second condylar portion and defines an opening passing therethrough. A seal member is operable to substantially seal the opening such that the seal member is further operable to be opened to enable access to the intramedullary canal of the femur without having to remove the femoral knee joint prosthesis from the femur. A method for enabling access to the intramedullary canal of the femur through the femoral knee joint prosthesis is also provided.

Abstract: An orthopedic component comprising a first element and a second element, with the first element and the second element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction and an engaged-fit junction.

Abstract: A knee prosthetic including a tibia part (1), which includes a tibia plate (2) that co-operates with at least one meniscal element by a first side (4), and co-operates with a tibia resection plan by a second side (5), including a tibia pin (3) connected with the tibia plate (2), which penetrates into the tibia to fix the tibia part (1) into it; and at least one compensating tibia block (6), which fits flatly between the second side (5) of the tibia plate (2) and the tibia itself, in order to compensate for a lack or absence of local bone tissue between the tibia and the resection plan. This tibia block (6) also co-operates with said tibia part (1) by way of complementary fixating means (10, 11) that are implemented on the tibia block (6) and tibia part, wherein the complementary fixating means are of the pin (10) and hole (11) type and are implemented on the tibia block and the base (9) of the tibia pin.

Abstract: A modular joint prosthesis includes a tibial component formed of a tibial bearing insert and a tibial plateau. The tibial bearing insert is a modular component formed of a tibial insert body and a modular element. The tibial insert body and the modular elements are provided in a variety of geometries and sizes to yield various types of tibial insert bodies. The same tibial insert body may be used, for example, to form both rotatable and non-rotatable tibial bearing inserts.

Abstract: A method is provided for implanting a joint prosthesis for a damaged joint, wherein the steps include removing the damaged joint and initially anchoring two stem members into adjacent bones and inserting a temporary occupier at the joint location between the two stem members. The occupier is configured to allow only limited movement of the bones having the stem members. After the area around the occupier has healed, the occupier is removed and a specially configured ball and socket is installed as the joint to allow for incremental adjustments of the ball and socket relative to the two stem members during the installation procedure to simulate the natural bending motion of the joint once healed.

Abstract: An orthopaedic prosthesis system for replacement of an articulating portion of a long bone includes a sleeve, a stem, and a neck. The sleeve has an outer bone engagement surface and includes opposed proximal and distal female taper regions. The stem has a distal end for fixation within a long bone and a proximal end including a male taper region engaged with the distal female taper of the sleeve. The neck has a taper post that engages the proximal taper of the sleeve. Both the neck and the sleeve may define axial bores, the axial bore in the sleeve communicating with and being generally coaxial with the two opposed female tapers, and the neck axial bore extending through the taper post. A connecting element can engage the stem, pass through the axial bore in the sleeve, extend into the axial bore in the neck taper post, and engage the neck.

Abstract: A tibial prosthetic implant with a reversible offset stem includes a base and a boss extending from the base. A reversible keel member includes a first end attached to the boss and a second end including an offset stem receiver. A stem includes a stem attachment extending at an angle from a first end thereof and connected to the offset stem receiver such that attaching the angled end of the stem to the offset stem receiver when the keel is in a first position, offsets the stem in a first direction, whereas, attaching the angled end of the stem to the offset stem receiver when the keel is in a second position, reversed from the first position, offsets the stem in a second direction.

Abstract: A medical fastening system for a modular knee prosthesis system includes a femoral component having a first surface, a second surface, and an aperture extending therebetween. A modular adapter element has a first end that is mountable adjacent the first surface of the femoral component and a second, mating end that is engagable with a second prosthesis component. The system also includes a first bolt that mates the adapter element to the femoral component. Various connection options are possible to secure different components of the system to each other.