Abstract
A specialized program for the computerized axial tomography (CAT) scan developed by Techmedica, Inc., allows for the creation of a titanium alloy “custom cap” as a femoral groove replacement, thus eliminating the need to remove bone stock from the femur. From 1983 to 1987, 28 custom patellofemoral replacements were performed in 25 patients with primary end-stage patellofemoral arthritis. The authors describe the surgical technique for this prosthesis. Postoperatively, there were no infections. Average range of motion was 0° to 120° indicating a 5° loss of motion. Four patients (13½%) underwent subsequent revision/removal in the early stages of the development of the component design. Improvement in manufacturing design has eliminated most of these problems.
Published Version
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