Clinical Evaluation of Knee Arthroplasty using KOM-type Total Knee Prosthesis

Abstract

From 1982 to 1991, 48 KOM-type total knee prostheses were performed in 44 osteoarthritic knee patients. 34 joints could be followed up, and were evaluated clinically and radiographically. Mean age of patients was 70.4 years (range, 55-83 years). The mean period of follow up was 4.8 years (range, 2-10 years). Mean JOA rating score improved from 44.4 to 74.9 points. Factors which influenced post-operative clinical results were preoperative JOA rating score, preoperative femoro-tibial-angle, and postoperative sinking of the prosthesis.