Document Classification

Section Type: METHODS

Text: In mobile-bearing prosthesis group, there were 9 males and 26 females with an average age of 68. 2 years (range, 58-73 years), weighing from 50 to 86 kg (mean, 67. 9 kg) ; the locations were the left knee in 30 cases and the right knee in 5 cases ; the BMI ranged from 18. 4 to 34. 4 (mean, 25. 6) ; the disease duration was 6-18 years ; the KSS knee score, function score, patellar score, and pain score were 30. 9 + / - 14. 7, 31. 4 + / - 14. 4, 6. 8 + / - 3. 1, and 2. 0 + / - 2. 3, respectively ; and the I-S index was 1. 6 + / - 0. 2.