Clinical evaluations of PCA-type total knee replacement.

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Fifty-six patients (71 knees) with gonarthrosis (49 patients, 61 knees) or rheumatoid arthritis (7 patients, 10 knees) treated with porous-coated anatomical (PCA) total knee system were reviewed clinically and radiographically. The mean age at surgery was 68 from (54 to 80) and the mean period of follow-up was 2 4 months (9 to 4 4 months) . Clinically the patients were evaluated by the three universities' knee rating score, and the femoro-tibial angle, setting position of the components, and appearance of radiolucent area were observed on postoperative serial radiographs.<BR>The following results were obtained: 1) All clinical symptoms except range of motion improved after surgery. 2) No significant complications of the patellofemoral joint were observed after resurfacing the patella. 3) Components were satisfactory placed. 4) Radiolucencies mainly appeared at the medial, lateral and posterior areas of the tibial component.
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