Abstract

Seventy-four Miller-Galante unicompartmental knee arthroplasty procedures were performed in 69 patients between 1990 and 2003. All patients underwent regular prospective clinical and radiological follow-up. Their average age at the time of surgery was 63.9 years (range : 47-80 years). Seventeen patients died during the period of follow-up. At a mean of 10.7 years follow-up the average Knee Society Score was 79.9 (range : 51-95) and the average functional score was 75.5 (range : 45-90). On the basis of clinical knee scoring, 48 knees (85.7%) were graded as excellent or good. The average amount of flexion at final follow-up was 115.9° (range : 90-140°). Arthritic progression in the opposite compartment was seen in 13 knees (23.2%). Two such knees underwent revision to total knee replacement (TKR) and 3 other knees were revised to TKR for persistent pain or infection. Ten-year survivorship with “revision due to progression of arthritis in the opposite compartment” as the end point was 97.3% and with “revision due to any cause” as the end point was 94.6%.