Supine to standing Cobb angle change in idiopathic scoliosis: the effect of endplate pre-selection.

ABSTRACT: BACKGROUND:Supine imaging modalities provide valuable 3D information on scoliotic anatomy, but the altered spine geometry between the supine and standing positions affects the Cobb angle measurement. Previous studies report a mean 7°-10° Cobb angle increase from supine to standing, but none have reported the effect of endplate pre-selection or whether other parameters affect this Cobb angle difference. METHODS:Cobb angles from existing coronal radiographs were compared to those on existing low-dose CT scans taken within three months of the reference radiograph for a group of females with adolescent idiopathic scoliosis. Reformatted coronal CT images were used to measure supine Cobb angles with and without endplate pre-selection (end-plates selected from the radiographs) by two observers on

SUBMITTER: Keenan BE 

PROVIDER: S-EPMC4193912 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature