1. Department of Orthopaedics and Traumatology, University Medical Centre Freiburg, Germany
2. Department of Diagnostic and Therapeutic Radiology, St. Josefshospital Freiburg, Germany
3. Department of Plastic and Hand Surgery, University Medical Centre Freiburg, Germany
4. Department of Pathology, University Medical Centre Freiburg, Germany
5. Department of Orthopaedics and Traumatology/Comprehensive Cancer Centre Freiburg CCCF, University Medical Centre Freiburg, Germany