Evaluation of tibial bone tunnel enlargement using MRI scan cross-sectional area measurement after autologous hamstring tendon ACL replacement.

The aim of this study was to evaluate tibial bone tunnel enlargement following four-strand hamstring tendon anterior cruciate ligament (ACL) reconstruction, using a new method of magnetic resonance imaging (MRI) assessment. Correlation with clinical outcome was also examined. In a prospective study following ACL reconstruction, 24 patients underwent MRI and clinical assessment, at a mean follow-up of 6.