1. Department of Neurosurgery, University Hospital Jena, Jena, Germany
2. Department of Science and Research, BG Clinic Bergmannstrost Halle (Saale), Halle, Deutschland
3. Interdisciplinary Center for Spine and Neurotrauma, Sana Clinic Borna, Borna, Germany
4. Interdisciplinary Center for Spinal and Scoliosis Surgery, Waldkrankenhaus Erlangen, Erlangen, Germany
5. Department of Orthopaedics and Traumatology, Paracelsus Private Medical University Nuremberg, Nuremberg, Germany
6. Department of Orthopaedics and Traumatology, University Hospital Marburg, Marburg, Germany
7. Department of Trauma and Orthopedic Surgery, Klinikum Traunstein, Traunstein, Germany
8. Department of Spinal Surgery, Schön Clinic Hamburg Eilbek, Hamburg, Germany
9. Medical Practice Clinic Orthopedics and Surgery Munich West, Munich, Germany
10. Department of Orthopaedics and Traumatology, University Hospital Kiel, Kiel, Germany
11. Department of Traumatology, Hirslanden Clinic St. Anna, University of Lucerne, Lucerne, Switzerland
12. Department of Traumatology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
13. Department of Orthopaedics, Traumatology and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany
14. Department of Trauma and Orthopaedic Surgery, University Hospital Erlangen, Erlangen, Germany
15. Department of Traumatology and Reconstructive Surgery, AMEOS Klinikum Halberstadt, Halberstadt, Germany
16. Department of Orthopaedics and Traumatology, Regiomed-Clinic of Coburg, Coburg, Germany
17. Department of Orthopaedics and Traumatology, University Hospital Duesseldorf, Duesseldorf, Germany
18. Department of Traumatology and Reconstructive Surgery, BG Clinic Bergmannstrost Halle (Saale), Halle, Germany
19. Department of Hand, Trauma- and Reconstructive Surgery, University Hospital Jena, Jena, Germany