Background: The knee joint is the most commonly injured of all joints and the anterior cruciate ligament (ACL) is the most commonly injured ligament. Anatomical graft placement is one of the major challenges in ACL reconstruction. Three-dimensional (3D) reconstruction of computed tomography (CT) images is currently the best method to determine whether the ACL tunnel and graft is positioned correctly. This study was done to calculate parameters of femoral tunnel in terms of femoral tunnel diameter, femoral tunnel length, femoral tunnel position based on Bernard and Hertel grid (Quadrant method) and the angle between a line drawn along the femur diaphysis and the femoral tunnel (femoral tunnel-femur diaphyseal angle/coronal angle/coronal obliquity) and to compare the results of femoral tunnel parameters measured with current literature