Abstract: A modular orthopedic hip prosthesis having three main components: a stem, a proximal body, and a neck. The components are removably connectable and selectively adjustable. The neck is rotationally adjustable about the stem, and the proximal body is both rotationally and axially adjustable about the stem. A collet and locking member hold and lock the proximal body to the stem.

Abstract: The present invention is directed to retractor instrumentation for total hip arthroplasty, and methods of using same. In one illustrative embodiment, the device comprises a body, a first pin coupled to the body, and a second pin coupled to said body, wherein at least a portion of said first and second pins are adapted to penetrate human bone. In a further illustrative embodiment, a retractor instrumentation set comprises a retractor device, a shaft that is adapted to be removably coupled to the retractor device, and an inserter that is adapted to be removably coupled to the shaft.

Abstract: The present invention is directed to retractor instrumentation for total hip arthroplasty, and methods of using same. In one illustrative embodiment, the device comprises a body, a first pin coupled to the body, and a second pin coupled to said body, wherein at least a portion of said first and second pins are adapted to penetrate human bone. In a further illustrative embodiment, a retractor instrumentation set comprises a retractor device, a shaft that is adapted to be removably coupled to the retractor device, and an inserter that is adapted to be removably coupled to the shaft.

Abstract: A modular orthopedic hip prosthesis having three main components: a stem, a proximal body, and a neck. The components are removeably connectable and selectively adjustable. The neck is rotationally adjustable about the stem, and the proximal body is both rotationally and axially adjustable about the stem. A collet and locking member hold and lock the proximal body to the stem.

Abstract: An angled orthopedic surfacer and guide which is particularly useful in connection with revision surgeries for femoral hip prostheses. The surfacer comprises a drive shaft connected to a milling head through a U-joint. A housing for the U-joint supports an adjustable spacer which can be moved to selected positions to control the depth of cut. A pivoting guide connects the surfacer to a rasp used to ream out a cavity for a prosthesis. The surfacer can be pivoted around a proximal and medial side of the rasp to cut away bone.

Abstract: A spacer to be used with femoral hip prostheses. The spacer is placed under a existing collar of a femoral hip prosthesis and cemented or tied in place or both. The spacer comprises a U-shaped segment adapted to fit under a medial collar and partially enclose part of a proximal portion of the stem of a hip prosthesis. Spacer plugs are provided to offset the spacer slightly and provide a space which is filled with bone cement (PMMA), securely attaching the spacer to the prosthesis. A distal ledge which lies adjacent the proximal body of the prosthesis keeps the cement enclosed between the stem and the spacer. An area of porous coating is provided distally. A peripheral groove is also provided.