Pombo B, et al. - Authors assessed the importance of the posterior cruciate ligament index (PCL index) as a marker of anatomic reconstruction and that of functional improvement of patients who are undergoing anterior cruciate ligament (ACL) reconstruction with Hamstring tendon (HT) autograft. This study does not demonstrate the relationship between the PCL index, control of rotational kinematics, and functional improvement in patients undergoing ACL reconstruction with bone-patellar tendon-bone autograft, contrary to other studies. Findings suggested the probability of this study to demonstrate the use of PCL index as an anatomic reconstructive marker of ACL but not to predict the clinical outcome in this type of reconstruction.