This retrospective cohort compares ACL-reconstruction with bone-patellar tendon-bone graft against conservative treatment for isolated ACL rupture. 109 patients were followed a mean of 11.1 years using IKDC, Tegner, KT-1000, and Kellgren-Lawrence grading. The central question: does surgery actually prevent long-term osteoarthritis?
The core teaching point challenges a common assumption: reconstruction does not reliably prevent post-traumatic osteoarthritis in isolated ACL rupture. In this cohort, surgery actually carried a higher radiographic OA rate (45% vs 24%) and was an independent predictor of arthrosis (OR 2.8). Better objective stability did not translate into a better joint or better subjective outcome.
The authors propose two mechanisms worth understanding. Surgical OA may stem from abnormal graft biomechanics and patellar tendon harvest. Conservative OA is driven by loss of the meniscus as a secondary stabilizer once instability leads to secondary tears.
The practical framework: for a patient likely to do well non-operatively, conservative care carries a lower OA risk and equivalent activity, but demands rehabilitation focused on protecting the menisci. Remember the design limits: this is a non-randomized retrospective cohort (EBM 2b) using older single-bundle technique, so newer reconstruction methods may perform differently.
This retrospective cohort compares ACL-reconstruction with bone-patellar tendon-bone graft against conservative treatment for isolated ACL rupture. 109 patients were followed a mean of 11.1 years using IKDC, Tegner, KT-1000, and Kellgren-Lawrence grading. The central question: does surgery actually prevent long-term osteoarthritis?
The core teaching point challenges a common assumption: reconstruction does not reliably prevent post-traumatic osteoarthritis in isolated ACL rupture. In this cohort, surgery actually carried a higher radiographic OA rate (45% vs 24%) and was an independent predictor of arthrosis (OR 2.8). Better objective stability did not translate into a better joint or better subjective outcome.
The authors propose two mechanisms worth understanding. Surgical OA may stem from abnormal graft biomechanics and patellar tendon harvest. Conservative OA is driven by loss of the meniscus as a secondary stabilizer once instability leads to secondary tears.
The practical framework: for a patient likely to do well non-operatively, conservative care carries a lower OA risk and equivalent activity, but demands rehabilitation focused on protecting the menisci. Remember the design limits: this is a non-randomized retrospective cohort (EBM 2b) using older single-bundle technique, so newer reconstruction methods may perform differently.