Increased femoral anteversion related to infratrochanteric femoral torsion is associated with ACL rupture
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Increased femoral anteversion related to infratrochanteric femoral torsion is associated with ACL rupture Yakup Alpay1 · Atakan Ezici2 · Muhammed Bilal Kurk2 · Osman Nuri Ozyalvac2 · Evren Akpinar2 · Avni Ilhan Bayhan2 Received: 28 June 2019 / Accepted: 21 January 2020 © European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2020
Abstract Purpose To determine the association between femoral torsion and anterior cruciate ligament (ACL) rupture and determine the level of torsion using magnetic resonance imaging (MRI). Methods The medical records of patients who were diagnosed with ACL injury were reviewed retrospectively. This descriptive epidemiological study included 2344 patients. MRI scans were examined and patients with femur and knee MRI scans obtained at the same time were identified (ACL-deficient group). Twenty-eight of them had femur and knee MRI scans because of an incidental benign lesion in the distal femur. Patients who were diagnosed with enchondroma were followed up by MRI evaluation of the femur and were randomly selected as controls. Supratrochanteric torsion (STT), infratrochanteric torsion (ITT), and femoral anteversion (FA) were measured by orthopedic surgeons with at least 5 years of experience. Results Age, sex, and side properties were similar in both groups. The mean FA values were 19.4 ± 3.0 degrees and 11.9 ± 2.0 degrees in the ACL-deficient and control groups, respectively (p
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