block vertebrae

block ver·te·brae

congenitally fused and hypoplastic vertebral bodies which, on radiographs, give the appearance of a more or less solid bony mass. See: Klippel-Feil syndrome.
References in periodicals archive ?
An investigation into the validity of cervical spine motion palpation using subjects with congenital block vertebrae as a 'gold standard' Humphreys BKIM, Delahaye M, Peterson CK BMC Musculoskeletal Disorders 2004, 5:19 (15 June 2004) http://www.