1. Institute of Material Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany
2. Department of Oral and Maxillofacial Surgery, University of Kiel, 24105 Kiel, Germany
3. McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, T2N 4N1, Canada
4. Catgut GmbH, 08258 Markneukirchen, Germany
5. Trauma and Reconstructive Surgery, University Hospital Carl Gustav Carus Dresden, 01307 Dresden, Germany