1. Department of Orthopaedic Surgery, Stanford University, Stanford, California
2. Department of Orthopaedics, University Hospital Carl Gustav Carus at Technical University Dresden, Dresden, Germany
3. Laboratoire de Biomécanique et Biomatériaux Ostéo‐Articulaires, UMR CNRS 7052, Faculté de Médecine, Université Paris 7, Paris, France
4. Department of Orthopaedic Surgery, European Teaching Hospital, Assistance Publique, Hôpitaux de Paris, Université Paris 5, Paris, France
5. Department of Orthopaedic Surgery, Bichat Teaching Hospital, Paris School of Medicine, Paris, France
6. Institute of Experimental Hematology, Hannover Medical School, Germany