1. Center for Emergency Medicine, University Hospital Jena, Friedrich Schiller University Am Klinikum 1, 07747 Jena, Germany
2. Clinic for Reconstruction and Trauma Surgery, Ernst von Bergmann Hospital Charlottenstr. 72, 14467 Potsdam, Germany
3. Orthopaedics, Trauma Surgery and Sports Traumatology, Marienhausklinikum Hetzelstift, Stiftstr. 10, 67434 Neustadt, Germany