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Pre- and postoperative range of motion (ROM), muscle strength, and VAS.
| Preoperation | Postoperation | |||
|---|---|---|---|---|
| Operation side | Nonoperation side | Operation side | Nonoperation side | |
| ROM of knee flexion (°), passive/active | 120/120 | 125/120 | 125/120 | 140/140 |
| ROM of knee extension (°), passive/active | −5/−5 | −5/−5 | 0/0 | −5/−5 |
| Knee extensor muscle strength (Nm) | 170.9 | 172.6 | 119.3 | 154.9 |
| Knee flexor muscle strength (Nm) | 52.9 | 59.6 | 60.0 | 68.3 |
| VAS (visual analog scale) | 14 | — | 0 | — |
