title: Isolated avulsion fracture of the anterior tubercle of the atlas.
abstract: Avulsion fracture of the tubercle of the atlas is a rare injury which is probably frequently overlooked. The fracture results from hyperextension of the neck against contraction of the long flexors. We describe two different fracture patterns and discuss the anatomical implications thereof.
authors.affiliation: Department of Orthopaedic Surgery, University of the Witwatersrand, Johannesburg, South Africa.
authors.forename: I
authors.initials: I
authors.lastname: Jakim
authors.forename: M B
authors.initials: MB
authors.lastname: Sweet
authors.forename: T
authors.initials: T
authors.lastname: Wisniewski
authors.forename: E D
authors.initials: ED
authors.lastname: Gantz
mesh_terms: D000328:Adult; D001270:Cervical Atlas / Q000000981:diagnostic imaging / Q000293:injuries*; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D011859:Radiography