Abstract: Modular prosthesis components having first and second relief patterns, the first relief pattern being complementary to the second relief pattern such that a component having the first relief pattern may seat fully on and in register with a component having the second relief pattern.

Abstract: Modular prosthesis components having first and second relief patterns, the first relief pattern being complementary to the second relief pattern such that a component having the first relief pattern may seat fully on and in register with a component having the second relief pattern.

Abstract: A joint prosthesis may include a tibial tray, a tibial base, a tibial articular member, and a femoral articular member. A coupler may engage the tray, and optionally the base, with an interference fit. An interference fit may be engaged using a mating surface with a constant non-tapering cross-sectional geometry.

Abstract: A joint prosthesis may include a modular head member, a modular body member, and a stem member. The stem member may be so tapered as to be engageable by taper press-fit into the medullary cavity of a bone. The body member may be engageable in the stem member by friction-tight press-fit at a zone of diametrical interference.

Abstract: Modular joint prostheses and components thereof are disclosed. In an embodiment, a joint prosthesis may include a head member, a neck member, and a stem member.

Abstract: Modular joint prostheses and components thereof are disclosed. In an embodiment, a joint prosthesis may include a head member, a neck member, and a stem member.

Abstract: The present invention discloses systems, kits and methods for prosthetic joint replacement. In one embodiment, a modular implantable surgical device including a stem, a neck and a head is disclosed that is suitable for replacement of a hip joint. In another embodiment, a kit is provided that includes at least two stems, necks and heads that can be used by the surgeon to adapt the size and shape of the assembled prosthetic device to conform to an individual patient's anatomy. In a practice according to the methods of the present invention, steps are disclosed for positioning the prosthesis in an individual patient in an anatomically correct position.

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.

Abstract: The invention provides a modular system of components used as bone preparation tools and trial prosthesis components. The system includes a trial tibial tray bearing element that mounts upon a prepared tibia, a punch bushing that serves the purpose of a trial tibial stem and helps to guide a tibial punch through the tibia. The trial template element, the punch bushing and the tibial punch can remain in position on the patient's tibia while one or more trial tibial bearing inserts or samples are attached thereto to determine the proper fit and orientation of a prosthesis.

Abstract: Instrumentation is provided for forming a cavity in the distal femur and for using that cavity as a reference for making exterior distal cuts of the femoral bone. At least a part of the walls of the cavity are formed by the cortical (hard) bone of the femur. In addition to its use in cutting the exterior bone, the cavity also serves to affix a femoral knee prosthesis to the femoral bone.

Abstract: An acetabular cup system is provided in which an insert or liner may be selected from a plurality of types of inserts to be used with an acetabular shell. One insert may be oriented after it is removably inserted into the acetabular shell. After an orientation is selected, it may be permanently fixed by pins. The other insert includes a snap-in ring that allows the insert to be snapped into position with the shell after its orientation is selected. The snap-in insert and ring are removable from the shell using a device for removing such snap-in insert and ring.

Abstract: Instrumentation is provided for forming a cavity in the distal femur and for using that cavity as a reference for making exterior distal cuts of the femoral bone. At least a part of the walls of the cavity are formed by the cortical (hard) bone of the femur. In addition to its use in cutting the exterior bone, the cavity also serves to affix a femoral knee prosthesis to the femoral bone.

Abstract: A prosthesis (13) for implantation in a patient's bone (2) is provided which has a metal fixation member (10), a metal orienting member (20) secured to the fixation member (10) by a self-locking taper (15,24), and a plastic bearing (30) which is secured to the orienting member (20) in a predetermined orientation. By means of this structure, the plastic bearing (30) can be given a desired orientation with regard to the metal fixation member (10) independent of the orientation of the fixation member (10) with respect to the patient's bone (2). Also, replacement and/or reorientation of the bearing (30) are facility. The prosthesis (13) can be used to form the tibial component of an artificial knee joint.