1. Department of Orthopedics and Traumatology, Paracelsus Medical University, Breslauer Straße 201, 90471 Nuremberg, Germany
2. Department of Radiology, Paracelsus Medical University, Breslauer Straße 201, 90471 Nuremberg, Germany
3. RKH Orthopedic Hospital Markgröningen, Center for Sports Orthopedics and Special Joint Surgery, 71706 Markgröningen, Germany
4. Department of Trauma Surgery and Sports Medicine, Garmisch-Partenkirchen Medical Centre, 82467 Garmisch-Partenkirchen, Germany