Systematic Review of Single-Bundle Anterior Cruciate Ligament Reconstruction Outcomes

BackgroundThere is increasing interest in comparing the efficacy of single-bundle versus double-bundle anterior cruciate ligament reconstruction. Challenging this comparison, however, has been the lack of an established consensus on the success of single-bundle reconstruction.HypothesisThe current outcomes of single-bundle reconstruction can be clarified from a large unbiased body of evidence for future comparisons with double-bundle reconstructions.Study DesignSystematic review.MethodsA systematic review of 11 randomized, controlled trials comparing patellar tendon and hamstring tendon grafting is reported. The respective outcomes of each group were combined to assist the orthopaedic surgeon in assessing the current success of single-bundle reconstruction. The primary factors assessed were tibial subluxation and side-to-side differences in laxity. Secondary outcomes included concomitant injuries and treatments, complications, graft failure, range of motion, and radiographic evidence of degenerative chang...