1 Geneva University Hospital, Hand Unit, Rue Gabrielle Perret Gentil 4, 1211 Geneva, Switzerland.
2 Geneva University Hospital, Hand Unit, Rue Gabrielle Perret Gentil 4, 1211 Geneva, Switzerland; Wallis Hospital, Plastic and Hand Surgery, Rue Saint-Charles 14, 3960 Sierre, Switzerland.
3 Geneva University Hospital, Hand Unit, Rue Gabrielle Perret Gentil 4, 1211 Geneva, Switzerland; Wallis Hospital, Plastic and Hand Surgery, Rue Saint-Charles 14, 3960 Sierre, Switzerland. Electronic address: cindy.bouvet@hopitalvs.ch.