1 Neurosurgery Unit, Department of Neuroscience, University of Turin, The City of Health and Science, Turin, Italy; Unit of Spine Surgery, Humanitas Cellini - Gradenigo, Turin, Italy. Electronic address: vincitorio.francesca@gmail.com.
2 Neurosurgery Unit, Department of Neuroscience, University of Turin, The City of Health and Science, Turin, Italy; Unit of Spine Surgery, Humanitas Cellini - Gradenigo, Turin, Italy.
3 UOC Traumatology - Reconstructive Microsurgery, Department of Orthopaedics and Traumatology, CTO Hospital, Turin, Italy.
4 Neurosurgery Unit, Department of Neuroscience, University of Turin, The City of Health and Science, Turin, Italy.