Sergi Barrera-Ochoa1, David Muñetón2, Xavier Mir3. 1. Institut Universitari Quiron-Dexeus, Hand Surgery and Microsurgery Unit, Institut Català de Traumatología i Medicina de l'Esport, Barcelona, Spain. 2. Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain. 3. Institut Universitari Quiron-Dexeus, Hand Surgery and Microsurgery Unit, Institut Català de Traumatología i Medicina de l'Esport, Barcelona, Spain; Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.