Femoral Graft Bending Angle and Femoral Tunnel Geometry of Transportal and Outside-In Techniques in Anterior Cruciate Ligament Reconstruction: An In Vivo 3-Dimensional Computed Tomography Analysis

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39 patients undergoing anatomic double-bundle anterior cruciate ligament reconstruction were randomized to two different femoral tunnel drilling techniques; the transportal technique or the outside-in technique. The results of the study have indicated that the outside-in technique results in more acute femoral graft bending angles and longer mean anteromedial femoral tunnel lengths, but it has yet to be determined if these differences are of clinical significance.