Patient who will undergo a posterior cervical spine fusion intervention, will be invited during preoperative visit to take part to the study.~The study is an observational multicentric study with an enrolment period of 12 months with the aim to assess the safety of MUST MINI system.~All adverse events will be collected for all study duration, classified as device and not device related. Screw failure rate is calculated considering screw loosening, breakage, lost-reduction events.~Standard radiological investigations are previewed at preoperative visit, before discharge and at 6 weeks and 12 months follow-up after surgery visits; the risk of any further exposure to radiation other than it's routine use in a diagnostic manner within the follow-up period can be excluded.~A final visit at 12 months level index fusion will be evaluated clinically as well as radiographically, with a confirmation CT scan as per standard of care. Screw placement accuracy will be evaluated during this visit.~A functional cervical x-ray is considered also during last follow-up (12 months after surgery) in order to assess cervical spine functionality.
The goal of this study is to assess the MUST MINI system safety in patient who will undergo a posterior cervical spine fusion intervention. Patients will be invited to partecipate during preoperative visit and follow the postoperative visits according to the standard practice.