Fig. 3From: Effect of anteromedial portal location on femoral tunnel inclination, length, and location in hamstring autograft-based single-bundle anterior cruciate ligament reconstruction: a prospective studyA Representative image of femoral tunnel inclination angle “a” measurement in a postoperative AP radiograph of the knee joint following ACL reconstruction; B depiction of the categorization of the tunnel exit on lateral radiographs of the knee joint into zones A, B, and C; with examples (C–E) illustrating zones A, B, and C. ACL, anterior cruciate ligament; AP, anteroposteriorBack to article page