Affiliation: | 1. ICATME, Hospital Universitari Dexeus—Universitat Autònoma de Barcelona, Barcelona, Spain;2. Department of Orthopaedic Surgery, Hospital del Mar—Universitat Autònoma de Barcelona, Barcelona, Spain;3. Department of Orthopaedic Surgery, Consorci Sanitari de l’Anoia, Igualada, Spain;4. Department of Orthopaedic Surgery, Hospital de la Sta Creu I Sant Pau (P.E.G.), Barcelona, Spain |