Arthroscopy–assisted reconstruction of a torn anterior cruciate ligament (ACL) is a commonly performed surgical procedure. The type of graft used for ACL reconstruction has traditionally been an autograft; the more commonly used grafts are the bonepatellar tendon–bone (BPTP) and hamstring tendons, namely the gracilis and semitendinosus tendons (GST). We surveyed the evidence concerning the outcome of patients treated by arthroscopic reconstruction of the ACL with either BPTP or GST. On basis of several welldesigned studes, specifically 5 meta–analyses and one systematic review, we critically discuss the best evidence available today regarding ACL reconstruction. This evidence suggests that BPTP may be considered for patients performing high–demand activities not involving repetitive kneeling.