Table 7.
Results of Multivariate Regression Analysis of Factors Affecting SCB Attainment by 12-Month Postoperative PRO Score a
| SCB Attainment, OR (95% CI) | P | |
|---|---|---|
| Anchor question 1 | ||
| Lysholm | ||
| Age at surgery | 0.9 (0.85-0.96) | .001 |
| 6-mo postop quadriceps LSI | 1.06 (1.02-1.10) | .002 |
| 12-mo postop hamstring LSI | 1.06 (1.01-1.12) | .023 |
| IKDC-SKF | ||
| Age at surgery | 0.93 (0.87-0.99) | .027 |
| 12-mo postop quadriceps LSI | 1.04 (1.01-1.07) | .016 |
| Tegner | ||
| Age at surgery | 0.88 (0.81-0.96) | .003 |
| Preop hamstring LSI | 1.03 (1.00-1.05) | .020 |
| 6-mo postop quadriceps LSI | 1.04 (1.00-1.07) | .063 |
| ACL-RSI | ||
| 12-mo postop quadriceps LSI | 1.03 (1.00-1.06) | .035 |
| Anchor question 2 | ||
| Lysholm | ||
| Age at surgery | 0.91 (0.86-0.96) | .001 |
| 6-mo postop quadriceps LSI | 1.07 (1.03-1.10) | <.001 |
| IKDC-SKF | ||
| Age at surgery | 0.94 (0.90-0.99) | .013 |
| 12-mo postop quadriceps LSI | 1.04 (1.01-1.07) | .002 |
| Tegner | ||
| Age at surgery | 0.89 (0.83-0.95) | <.001 |
| Preop hamstring LSI | 1.03 (1.01-1.05) | .005 |
| ACL-RSI | ||
| 6-mo postop hamstring LSI | 1.05 (1.01-1.09) | .012 |
a ACL-RSI, Anterior Cruciate Ligament–Return to Sport after Injury; IKDC-SKF, International Knee Documentation Committee Subjective Knee Evaluation Form; LSI, limb symmetry index; postop, postoperative; OR, odds ratio; Preop, preoperative; PRO, patient-reported outcome; SCB, substantial clinical benefit.