Table 2.
Clinical Evaluationa
| Preoperative | Postoperative | P Value | |
|---|---|---|---|
| Extension angle, deg | –5.1 (–20 to 0) | –2.3 (–15 to 0) | <.0001 |
| Flexion angle, deg | 138.9 (125 to 155) | 140.3 (115 to 155) | .6520 |
| JOA score | 65.6 (50 to 80) | 90.8 (50 to 100) | <.0001 |
| Knee function, n (%) | |||
| Good: 85-100 points | 1 (1.2) | 72 (84.7) | |
| Fair: 70-85 points | 26 (30.6) | 10 (11.8) | |
| Poor: ≤69 points | 58 (68.2) | 3 (3.5) | |
| KOOS | |||
| Pain | 46.8 (0 to 69) | 81.4 (57 to 100) | <.0001 |
| Symptoms | 54.5 (7 to 82) | 82.5 (50 to 100) | <.0001 |
| Activities of Daily Living | 59.2 (10 to 84) | 87.2 (57 to 100) | <.0001 |
| Sports/Recreation | 25.8 (0 to 65) | 57.9 (0 to 100) | <.0001 |
| Quality of Life | 26.6 (6 to 56) | 64.2 (25 to 100) | <.0001 |
aData are reported as mean (range) unless otherwise noted. JOA, Japanese Orthopaedic Association; KOOS, Knee injury and Osteoarthritis Outcome Score.