Younger age and prior graft failure are associated with increased risk of ACL reinjury: Graft survival and contralateral ACL outcomes at a median 10.6‐year follow‐up after primary hamstring autograft reconstruction
Retrospective cohort study evaluates graft survival and contralateral ACL injury risk after hamstring autograft reconstruction, highlighting age and prior graft failure as key factors.
Key Points
This study aims to evaluate graft survival and the risk of contralateral ACL injury after primary hamstring autograft reconstruction.
Retrospective cohort study of 415 patients who underwent primary single-bundle hamstring tendon ACL reconstruction from 2005 to 2014.
Median follow-up of 10.6 years with Kaplan-Meier analysis for graft survival and Cox proportional hazards models for risk factors.
Graft failure assessed by revision, confirmed rupture, or characteristic instability.
Ten-year graft survival probability was 86.6% (95% CI, 82.8%–89.5%).
Patients aged 21 years or younger had a higher hazard of graft failure (aHR, 2.62; 95% CI, 1.49–4.61; p < 0.001).
Prior graft failure was linked to contralateral ACL injury risk (aHR, 3.25; 95% CI, 1.00–10.53; p = 0.050).