1. Institute of General Mechanics, RWTH Aachen University, Templergraben 64, Aachen 52062, Germany
2. Centre for Orthopedic and Trauma Surgery, University of Cologne, Kerpener Street 62, Köln 50937, Germany
3. NGMedical GmbH, Morschborn 28, Nonnweiler-Primstal 66620, Germany
4. Rhein-Maas Klinik, Department of Orthopaedics and Trauma Surgery, Mauerfeldchen 25, Würselen 52146, Germany
5. Department for Trauma and Reconstructive Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, Aachen 52074, Germany
6. Klinikum Leverkusen gGmbH, Clinic for Orthopedic and Trauma Surgery, Am Gesundheitspark 11, Leverkusen 51375, Germany