| Preoperative | Postoperative 3-year | P-value |
---|---|---|---|
ROM, degree (SD) | 110 (19.8) | 123 (14.4) | < 0.001 |
KSS-KS (SD) | 43.5 (14.5) | 97.2 (4.90) | < 0.001 |
KSS-FS (SD) | 40.0 (19.5) | 76.0 (18.8) | < 0.001 |
Extension, degree (SD) | −10.1 (9.94) | −0.78 (3.21) | < 0.001 |
Flexion, degree (SD) | 120 (14.3) | 124 (13.3) | 0.003 |