Association between concomitant injury and time from ACL injury to ACLR and presence of compartmental OA presented as ORs and 95% CIs
| Outcome | Patellofemoral OA (n=33) | Tibiofemoral OA (n=22) |
|---|---|---|
| Concomitant injury | ||
| Articular cartilage* | 4.6 (1.0 to 20.9) | Medial: 1.6 (0.4 to 6.1) Lateral: 4.8 (0.9 to 26.6) |
| Medial meniscus (n=25) | 1.9 (0.7 to 5.5) | 3.7 (1.1 to 12.4)† |
| Lateral meniscus (n=17) | 2.3 (0.7 to 7.5) | 2.1 (0.6 to 7.9)† |
| Duration to ACLR | ||
| Early (n=19) | Reference | Reference |
| Intermediate (n=31) | 2.2 (0.6 to 8.2) | 3.3 (0.8 to 14.4) |
| Late (n=20) | 2.3 (1.1 to 4.8) | 1.7 (0.7 to 4.0) |
Adjusted for age and gender.
Duration to ACLR: early <6 weeks, intermediate 6 weeks to 1 year and late >1 year.
For surgical delay binary logistic analyses, the early ACLR group was used as the reference group.
*In respective compartment, patellofemoral n=13, medial tibiofemoral n=15 and lateral tibiofemoral n=8.
†Medial meniscus associated with medial tibiofemoral OA, lateral meniscus associated with lateral tibiofemoral OA.
ACL, anterior cruciate ligament; ACLR, ACL reconstruction; OA, osteoarthritis.