Outside-in vs. Transportal Technique for ACL reconstruction .
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Computed Tomography Analysis of the Femoral Tunnel Position and Aperture Shape of Transportal and Outside-In ACL Reconstruction: Do Different Anatomic Reconstruction Techniques Create Similar Femoral Tunnels?
Am J Sports Med. 2013 Nov;41(11):2512-2080 patients who had experienced a primary unilateral anterior cruciate ligament (ACL) injury were randomly assigned into 1 of 2 groups to compare femoral tunnel aperture shape and femoral tunnel position. Patients received either a transportal (group 1) or outside-in (groups 2) technique for ACL reconstruction. The results of the study indicated that the transportal (TP) technique led to a more ellipsoidal anteromedial (AM) femoral tunnel aperture than the outside-in (OI) technique, and that mean posterolateral femoral tunnel position with the OI technique was significantly shallower, with more variable/perpendicular aperture axis angle to the femoral shaft axis than the TP technique.
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