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MCID Postoperative Threshold Values and Achievement*
| 2-Yr MCID Threshold | 2-Yr % Achieved | >5-Yr MCID Threshold | >5 Yr % Achieved | |
|---|---|---|---|---|
| IKDC | 9.5 | 92.9 | 8.7 | 94.7 |
| SF-12 MCS | 5.1 | 31.3 | 4.7 | 28.2 |
| SF-12 PCS | 5.2 | 76.3 | 4.8 | 79.0 |
| Lysholm | 10.6 | 81.2 | 10.1 | 80.8 |
MCID = minimal clinically important difference, IKDC = International Knee Documentation Committee, SF-12 = 12-item Short Form Health Survey, PCS = Physical Component Summary, and MCS = Mental Component Summary.
