1. Department of Orthopaedic and Hand Surgery; AP-HP; Hôpital Saint Antoine; Université Paris 6 Pierre et Marie Curie; Paris France
2. Department of Plastic and Reconstructive Surgery; AP-HP; Hôpital Saint Louis; Université Paris 7 Denis Diderot; Paris France
3. Department of Orthopaedic Surgery; Hôpitaux Universitaires de Genève; Université de Genève; Geneva Switzerland