Abstract
Total knee arthroplasty was performed in 40 knees of 34 patients. The series contained 15 cases with rheumatoid arthritis and 25 with osteoarthritis. The postoperative follow-up was done at 6-66 months (mean 26 months).
JOA score improved from a mean of 54.7 points preoperatively to 76.2 points postoperatively.
The mean of the range of motion (ROM) decreased from 116° preoperatively to 104° postoperatively.
We studied the factors influencing in the postoperative ROM. The results were found to correlate with preoperative ROM, but not with angle of components, patella height and depth, change of joint line and tibial component position.
