title: Atlanto-axial dislocation due to ossiculum terminale persistens. Report of two cases treated by a new technique of posterior fusion.
abstract: Two cases of atlanto-axial dislocation due to ossiculum terminale of the odontoid process are reported. A new technique of posterior fusion with a Y-shaped plate is described. Embryological data, clinical features, and operative treatment of this unusual condition are discussed.
mesh_terms: D000328:Adult; D001368:Axis, Cervical Vertebra / Q000002:abnormalities* / Q000601:surgery; D001270:Cervical Atlas / Q000601:surgery; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D008297:Male; D013123:Spinal Fusion / Q000379:methods*