1. Shoulder and Elbow Unit, Department of Orthopaedic and Trauma Surgery, Miguel Servet University Hospital, Zaragoza, Spain
2. Emergency Department, Royo Villanova Hospital, Zaragoza, Spain
3. Department of Orthopaedic and Trauma Surgery, Miguel Servet University Hospital and Department of Orthopaedic Surgery, School of Medicine, University of Zaragoza, Zaragoza, Spain