1. Department of Traumatology, University Hospital Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
2. Department of Vascular Surgery, University Hospital Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
3. Department of Radiology, University Hospital Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany