[1] Madre Teresa Calcutta Hosp, Div Orthopaed & Trauma, Padua, Italy
[2] IRCCS Orthoped Inst Galeazzi, Milan, Italy
[3] Univ Turin, San Luigi Gonzaga Hosp, Dept Surg Sci, Med Sch, Turin, Italy
[4] Univ Turin, Orthopaed & Traumatol Dept, Med Sch, Turin, Italy
[5] Univ Padua, Dept Orthoped & Orthoped Oncol, Padua, Italy
[6] Humanitas Res Hosp, Shoulder & Elbow Unit, Milan, Italy
[7] AUSL Romagna, Cervesi Hosp, Shoulder & Elbow Unit, Cattolica, Italy
[8] UNIMORE, Doctorate Sch Clin & Expt Med, Modena, Italy