title: [Posterior osteosynthesis in C1-C2 instability].
abstract: This is a retrospective study of 8 cases of instability of the C1-C2 segment caused by R.A. or non-union and treated by posterior stabilization with wire loops and bone grafts. The authors reported good results in patients with mild recent neurological involvement and/or radiographic instability of the segment (posterior subluxation of the dens greater than 1/3 of the A-P diameter of C1 or tilting of the dens greater than 30 degrees). The death of a patient with non-union of the dens and severe neurological involvement due to respiratory palsy leads the authors to regard severe long-term neurological involvement (quadriparesis) a contraindication for this type of procedure.
authors.affiliation: Cattedra di Traumatologia della Strada, Università degli Studi di Cagliari.
authors.forename: P
authors.initials: P
authors.lastname: Bartolozzi
authors.forename: M
authors.initials: M
authors.lastname: Salvi
authors.forename: M
authors.initials: M
authors.lastname: Misasi
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D000075202:Contraindications; D005260:Female; D005593:Fracture Fixation, Internal / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011542:Pseudarthrosis / Q000601:surgery; D011859:Radiography; D012074:Remission Induction; D016103:Spinal Fractures / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*
vernacular_title: L'osteosintesi posteriore nelle instabilità C1-C2.