title: Atlanto-occipital instability in Down's syndrome.
abstract: A patient with Down's syndrome and asymptomatic atlanto-occipital instability is described. The relationship between atlanto-occipital instability, atlanto-axial instability and generalized ligamentous laxity, is discussed.
authors.affiliation: Frith Hospital, Leicester, England.
authors.forename: R A
authors.initials: RA
authors.lastname: Collacott
authors.forename: D
authors.initials: D
authors.lastname: Ellison
authors.forename: W
authors.initials: W
authors.lastname: Harper
authors.forename: C
authors.initials: C
authors.lastname: Newland
authors.forename: K
authors.initials: K
authors.lastname: Ray-Chaudhurt
mesh_terms: D000328:Adult; D001269:Atlanto-Occipital Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D004314:Down Syndrome / Q000000981:diagnostic imaging / Q000235:genetics*; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000235:genetics*; D011859:Radiography