Table 2.
Relationship between ACL injured return-to-play groups and prevalence of hamstring and knee injuries per game week
| Return to competition | Hamstring (%) | Knee cartilage (%) | Patella tendon (%) | All other knee injuries (non-ACL) (%) | Subsequent ACL injuries (%) | Total hamstring and knee injury (%) |
|---|---|---|---|---|---|---|
| Returned to play < 10 months | 3.3 | 1.2 | 0.4 | 1.6 | 2.5 | 8.5 |
| Returned to play 10–12 months | 3.6 | 1.8 | 0.1 | 0.8 | 2.2 | 8.4 |
| Returned to play > 12 months | 2.9 | 3.7 | 0.6 | 1.1 | 4.8 | 12.6 |
| All return post human tissue ACL reconstruction | 3.2 | 2.2 | 0.3 | 1.3 | 3.0 | 9.7 |