1. University of Campania "Luigi Vanvitelli"
2. Orthopedic and Traumatology Clinic, Edoardo Agnelli Hospital
3. Istituto clinico San Siro, IRCCS Istituto Ortopedico Galeazzi
4. Orthopedic and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation
5. Orthopedic and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation; Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia
6. University of Pavia