Document Detail

Structural vertebral changes in the horizontal plane in idiopathic scoliosis and the long-term corrective effect of spine instrumentation.
MedLine Citation:
PMID:  7749899     Owner:  NLM     Status:  MEDLINE    
The rotation and structural changes of the apex vertebra in the horizontal plane as well as of the thoracic cage deformity were quantified by measurements on computed tomography (CT) scans from patients with right convex thoracic idiopathic scoliosis (IS). The CT scans were obtained from 12 patients with moderate scoliosis (mean Cobb angle 25.8 degrees, r 13 degrees-30 degrees) and from 33 with severe scoliosis (mean Cobb angle 46.2 degrees, r 35 degrees-71 degrees). In addition, CT scans of thoracic vertebrae from 15 patients without scoliosis were used as reference material. Ten of the scoliotic cases had had Cotrel-Dubousset instrumentation (CDI) and posterior fusion and had entered a longitudinal study on the effect of operative correction on the re-modelling of the apical vertebra. An increasingly asymmetrical vertebral body, transverse process angle, pedicle width and canal width were found in the groups with scoliosis as compared with the reference material. Vertebral rotation and rib hump index were significantly larger in patients with early and advanced scoliosis than in normal subjects. The modelling angle of the vertebral body, the transverse process angle index and the vertebral rotation in relation to the middle axis of the thoracic cage were significantly greater in patients with severe than with moderate scoliosis. The results of this longitudinal study suggest that the structural changes of the apical vertebra regress 2 years or more after CD instrumentation.
B Xiong; B Sevastik; U Willers; J Sevastik; R Hedlund
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society     Volume:  4     ISSN:  0940-6719     ISO Abbreviation:  Eur Spine J     Publication Date:  1995  
Date Detail:
Created Date:  1995-06-20     Completed Date:  1995-06-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9301980     Medline TA:  Eur Spine J     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  11-4     Citation Subset:  IM    
Department of Orthopaedic Surgery, Huddinge University Hospital, Karolinska Institute, Stockholm, Sweden.
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MeSH Terms
Follow-Up Studies
Longitudinal Studies
Range of Motion, Articular
Scoliosis / pathology*,  surgery
Spinal Fusion* / methods
Thoracic Vertebrae / pathology*,  surgery
Treatment Outcome

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