1. Department of Neurosurgery, Hôpital privé Le Bois, Ramsay Générale de Santé, Lille, France
2. Japet Medical Device, Lille, France
3. Department of Anatomy, Lille University Hospital, Lille, France
4. Lille University, Civil Engineering and geo-Environmental Laboratory (ULR 4515 LGCgE), Lille, France
5. Rehabilitation Unit, Lille University Hospital, Lille, France
6. CIC-IT, Lille University Hospital, Lille, France