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Journal Title
Title of Journal: Knee Surg Sports Traumatol Arthrosc
Abbravation: Knee Surgery, Sports Traumatology, Arthroscopy
Publisher
Springer Berlin Heidelberg
DOI
10.1002/jbmr.1472
ISSN
1433-7347
Fourth generation medium and large synthetic femur bones were used On each femur a MCL tunnel and a PCL tunnel were reamed The MCL tunnel was drilled at 0° 20° and 40° of axial and coronal angulations The PCL femoral tunnel was reamed to simulate two different tunnel directions that could be obtained through an insideout and outsidein technique Tunnels were filled with epoxy resin augmented with BaSO4 and a multidetector CT examination of each specimen was performedHigh rate of tunnel collision 625 was found when the MCL femoral tunnel was reamed with a coronal angulation of 0° and 20° The rate of tunnel collision significantly decreased 0 when the MCL tunnel was reamed proximally with a coronal angulation of 40° No differences were found between the two PCL tunnel directions in terms of tunnel collisionThe results of this study can help surgeons to better direct the femoral MCL tunnel in order to avoid a collision between femoral tunnels during a combined MCL and PCL reconstruction In order to minimize such potential complications the MCL tunnel should be created limiting the axial angulation and it should be drilled with a proximal angulation from 20° to 40° depending on the medial condyle width