1. Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
2. Research Unit of Orthopaedic and Trauma Surgery, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
3. Unit of Anesthesia, Intensive Care and Pain Management, Department of Medicine, Campus Bio-Medico University Hospital Foundation, Rome, Italy