| Variable | Postoperative Days | |||
| 2 - 6 | 7 - 11 | 12 - 16 | 17+ | |
| Pain, 1-10 | 5.59 (2.27) | 3.82 (1.74) | 3.21 (1.86) | 1.73 (1.89) |
| Knee flexion, ˚ | 89.28 (12.19) | 102.31 (11.11) | 108.23 (8.80) | 116.23 (10.31) |
| Knee extension*, ˚ | −3.45 (4.99) | −0.65 (1.33) | −0.10 (1.33) | 0.77 (1.88) |
| Timed Up and Go, s | 53.00 (15.41) | 23.96 (12.73) | 17.60 (3.25) | 13.45 (2.42) |
| Gait velocity m/s | 0.38 (.30) | 0.64 (.29) | 0.77 (.12) | 0.81 (.18) |
| 30-Second sit-to-stand, reps | 2.36 (2.48) | 7.08 (3.45) | 7.87 (2.15) | 9.91 (2.12) |