S. Zbyn, D. Stelzeneder, G. H. Welsch, L. L. Negrin, V. Juras, P. Szomolanyi, R. Dorotka, and S. Trattnig Department of Radiology, Medical University Vienna, Vienna, Austria, Department of Orthopaedic Surgery, Medical University Vienna, Vienna, Austria, Department of Trauma Surgery, University Hospital of Erlangen, Erlangen, Germany, Department of Trauma Surgery, Medical University Vienna, Vien...