1. Department of Radiology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
2. Department of Pathology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
3. Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
4. Department of Orthopaedics and Trauma Surgery, Universitätsklinikum Krems, 3500 Krems an der Donau, Austria
5. Arthroplasty Center Munich West, Helios Klinikum, Steinerweg 5, 81241 Munich, Germany
6. Center of Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University of Greifswald, 17475 Greifswald, Germany