Table 7.
Factors affecting the achievement of a PASS on the KOOS QoL (≥ 62.5) subscale
| Factor | Regression coefficient (ß) | SE | OR (95% CI) | P value |
|---|---|---|---|---|
| Pre-operative | ||||
| Age ≥ 30 years | 0.82 | 0.12 | 2.28 (1.78–2.92) | < 0.001* |
| Female gender | − 0.13 | 0.11 | 0.87 (0.69–1.09) | n.s. |
| Delayed (> 3 months) ACLR | − 0.09 | 0.14 | 0.90 (0.67–1.21) | n.s. |
| Pre-injury Tegner activity level ≥ 6 | − 0.08 | 0.18 | 0.91 (0.63–1.31) | n.s. |
| Intra-operative | ||||
| HT autograft | 0.25 | 0.22 | 1.29 (0.82–2.01) | n.s. |
| MM resection | − 0.09 | 0.16 | 0.99 (0.71–1.38) | n.s. |
| MM repair | − 0.38 | 0.25 | 0.68 (0.41–1.12) | n.s. |
| LM resection | 0.06 | 0.16 | 1.06 (0.77–1.47) | n.s. |
| LM repair | 0.25 | 0.32 | 1.28 (0.67–2.43) | n.s. |
| Cartilage injury | − 0.01 | 0.15 | 0.98 (0.72–1.32) | n.s. |
| Post-operative (6 months) | ||||
| Quadriceps strength LSI ≥ 90% | 0.39 | 0.12 | 1.48 (1.15–1.91) | 0.002* |
| Hamstring strength LSI ≥ 90% | 0.02 | 0.11 | 1.02 (0.81–1.28) | n.s. |
| Single-leg-hop test LSI ≥ 90% | 0.24 | 0.12 | 1.28 (1.00–1.63) | 0.04* |
PASS Patient-acceptable symptom state; KOOS Knee injury and Osteoarthritis Outcome Score; QoL quality of life; ACLR anterior cruciate ligament reconstruction; HT hamstring tendon; MM medial meniscus; LM lateral meniscus; LSI limb symmetry index; SE standard error; OR odds ratio; CI confidence interval
*Statistically significant. P value < 0.05