1. Department of Orthopedics, University Medical Center, Rostock, Germany
2. Rev Physical Therapy, Salt Lake City, Utah, USA
3. Department of Trauma Surgery, Friedrich Alexander University Erlangen-Nuremberg, Erlangen, Germany
4. Department of Orthopedics, Trauma and Hand Surgery, Klinikum Osnabrück, Osnabrück, Germany
5. Department of Orthopedic Surgery, Friedrich Alexander University Erlangen-Nuremberg, Erlangen, Germany
6. Section Sports Orthopedics & Sports Medicine, Department of Orthopedic and Trauma Surgery, Klinikum Bamberg, Bamberg, Germany
7. Wilderness Medicine Section, Department of Emergency Medicine, University of Colorado School of Medicine, Denver, Colorado, USA
8. School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, UK