1 Italian Orthopaedic Society (SIOT), Italy. Electronic address: paolo.cherubinio@gmail.com.
2 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli 1, 40136, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, 40123, Bologna, Italy. Electronic address: albertocorrado.dimartino@ior.it.
3 Department of Neuroscience and Organs of Sense, Orthopaedic Unit, Faculty of Medicine and Surgery, University of Bari "Aldo Moro", Policlinico, Piazza G. Cesare 11, 70124, Bari, Italy. Electronic address: giuseppe.solarino@uniba.it.