2012 Volume 61 Issue 2 Pages 208-212
The aim of this study was to review the results of total knee arthroplasty (TKA) for rheumatoid arthritis using GENESIS II manufactured by Smith & Nephew. The subjects were 73 patients and 61 joints who underwent TKA at our hospital between June 2006 and December 2010. They consisted of eight males and 53 females, 31 right joints, and 42 left joints. The mean age at surgery was 68.7 and mean observation period was 16.5 months after surgery. The breakdown of artificial joint types used were; 69 PS type, four CR type, 19 PS cement type, 41 PS cementless type, nine PS hybrid type, and four CR cement type. As a result of using GENESIS II, the mean JOA score was 85.8 points postoperatively versus 42.8 points preoperatively, Barthel Index was 88 points at discharge versus 68.2 points preoperatively. The mean angle of the implant was 97.3 degrees for angle α, 88.2 degrees for angle β, 4.7 degrees for angle γ, and 85.2 degrees for angle δ. The mean femorotibial angle (FTA) was 175.9 degrees preoperatively and 174 degrees postoperatively. Postoperative complications delayed wound healing in three joints, two joints developed peroneal nerve palsy, and one joint was infected. Although short-term results were good, long-term postoperative follow-up is required.
