title: New subtype of acute odontoid fractures (type IIA).
abstract: A new subtype of axis fracture, thought to be a variant of the Type II odontoid fracture, is described. High resolution, thin section computed tomography can assist in the identification of comminuted fractures at the base of the dens with associated free fracture fragments. Because these injuries are markedly unstable and cannot be suitably realigned and reduced by external means, early surgical therapy should be considered.
authors.affiliation: Spinal Cord Injury Service, Barrow Neurological Institute, Phoenix, Arizona.
authors.forename: M N
authors.initials: MN
authors.lastname: Hadley
authors.forename: C M
authors.initials: CM
authors.lastname: Browner
authors.forename: S S
authors.initials: SS
authors.lastname: Liu
authors.forename: V K
authors.initials: VK
authors.lastname: Sonntag
mesh_terms: D000208:Acute Disease; D000368:Aged; D000369:Aged, 80 and over; D001368:Axis, Cervical Vertebra / Q000293:injuries*; D001864:Bone Wires; D005260:Female; D005592:Fracture Fixation; D005593:Fracture Fixation, Internal; D050723:Fractures, Bone / Q000145:classification* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009809:Odontoid Process / Q000293:injuries*; D014057:Tomography, X-Ray Computed