1. Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany
2. Department of Science, Research and Education, BG Clinic Bergmannstrost Halle, Halle, Germany
3. Center for Spinal and Scoliosis Surgery, Malteser Waldkrankenhaus St. Marien, Erlangen, Germany
4. Department of Orthopedics and Traumatology, Paracelsus Private Medical University Nuremberg, Nuremberg, Germany
5. Department of Trauma, Hand and Reconstructive Surgery, University Hospital Jena, Jena, Germany
6. Department of Trauma and Reconstructive Surgery, BG Clinic Bergmannstrost Halle, Halle, German
7. Department of Orthopaedic and Traumatology, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
8. Department of Spine Surgery, Schoen-Klinik Hamburg-Eilbek, Hamburg, Germany
9. Center for Orthopaedics and Trauma Surgery, University Hospital Giessen and Marburg GmbH, Marburg, Germany
10. Lehrkörper Medizinische Fakultät der, Technischen Universität München (Med. Fak. TUM), Munich, Germany
11. Department of Orthopedic and Trauma Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, Germany
12. University of Lucerne, Hirslanden Clinic St. Anna, Lucerne, Switzerland
13. Department of Trauma, University Hospital Zurich (USZ), University of Zurich (UZH), Zurich, Switzerland
14. Department of Spine Surgery, Thuringia Clinic “Georgius Agricola” Saalfeld, Teaching Hospital of the University of Jena, Saalfeld, Germany
15. Department of Trauma Surgery, University Hospital Erlangen, Erlangen, Germany
16. Department for Paraplegia and Spine Surgery, BG Trauma Center, Tuebingen, Germany
17. Clinic of Trauma-, Hand- and Reconstruction Surgery,AMEOS-Clinic Halberstadt, Halberstadt, Germany
18. Department of Neurosurgery, - Friedrich Schiller University, Jena University Hospital, Jena, Germany
19. Department of Orthopaedics and Trauma Surgery, Regiomed Klinikum Coburg, Germany
20. Department of Trauma and Orthopedic Surgery, Klinikum Traunstein, Traunstein, Germany
21. Interdisciplinary Center for Spine and Neurotrauma, Sana Klinikum Borna, Borna, Germany