title: [Post-traumatic os odontoideum].
abstract: This is a report about a 20-month-old child with acquired os odontoideum caused by a fall. Diagnosis of atlanto-axial instability was eventually made 29 months later after repeated trauma and transitory tetraparesis. Dorsal C1/2 fusion with an autogenic rib graft and plaster fixation for 8 weeks failed; an autogenic iliac bone graft plus external fixation for 12 weeks finally resulted in solid fusion.
mesh_terms: D000368:Aged; D001268:Atlanto-Axial Joint / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007223:Infant; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000601:surgery*; D009809:Odontoid Process / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D011542:Pseudarthrosis / Q000000981:diagnostic imaging / Q000601:surgery*; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D013123:Spinal Fusion; D014057:Tomography, X-Ray Computed
vernacular_title: Ein posttraumatisches Os odontoideum.