title: Fracture of the atlantal arch causing atlanto-axial instability. Report of a case.
mesh_terms: D001368:Axis, Cervical Vertebra / Q000293:injuries*; D001270:Cervical Atlas / Q000000981:diagnostic imaging / Q000293:injuries*; D050723:Fractures, Bone / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009809:Odontoid Process / Q000000981:diagnostic imaging / Q000293:injuries*; D014057:Tomography, X-Ray Computed