X Paredes-Carnero1, J A Álvarez-Jorge2. 1. Department of Orthopedic Surgery and Traumatology, Complexo Hospitalario Universitario de Ourense (Ourense), Rúa Ramón Puga n° 50, 32005 Ourense, Spain. 2. Department of Plastic, Aesthetic and Reconstructive Surgery, Complexo Hospitalario de A Coruña (A Coruña), Coruña, Spain.