Affiliation: | a Rizzoli Institute, Bologna, Italy b Department of Orthopaedics and Traumatology - Spine Surgery, Ospedale Maggiore ‘C. A. Pizzardi’, Largo Nigrisoli 1 - 40100 Bologna, Italy c Spine and Orthopaedic Oncology, 5700 Telegraph Avenue, Suite 100, Oakland, CA 94609, USA d Department of Orthopaedics, University of California Davis, Suite 3800, Y Street, Sacramento, CA 95817, USA |