1. 3rd Orthopaedic and Traumatologic Clinic Prevalently Oncologic, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
2. Physical Medicine and Rehabilitation Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
3. Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
4. S.C. Recupero e Rieducazione Funzionale, P.O. Businco ARNAS G.Brotzu, Piazzale Ricchi 1, 09134 Cagliari, Italy