Document Detail

Measurement of volume-occupying rate of cervical spinal canal and its role in cervical spondylotic myelopathy.
MedLine Citation:
PMID:  23291855     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare volume-occupying rate of cervical spinal canal between patients with cervical spondylotic myelopathy (CSM) and normal subjects, and to investigate its significance in cervical spine disease.
METHODS: Spiral computed tomography (CT) scan (C4-C6 cervical spine unit) was performed in 20 normal subjects and 36 cases of CSM at a neutral position, and data were transferred to the Advantage Workstation Version 4.2 for assessment. Bony canal area and fibrous canal area in each cross section, and sagittal diameters of cervical spinal canal and cervical spinal body were measured. Volume-occupying rate of cervical spinal canal was calculated using MATLAB. Cervical spinal canal ratio and effective cervical spinal canal ratio were calculated, and Japanese Orthopaedic Association score was used to assess cervical spinal cord function.
RESULTS: Volume-occupying rate of cervical spinal canal at a neutral position was significantly higher in CSM patients as compared to normal subjects (P < 0.01). There was no correlation between cervical spinal canal ratio and JOA score in CSM patients, with a Pearson's correlation coefficient of 0.171 (P > 0.05). However, sagittal diameter of secondary cervical spinal canal, effective cervical spinal canal ratio and volume-occupying rate of cervical spinal canal were significantly associated to JOA score, with Pearson's coefficient correlations of 0.439 (P < 0.05), 0.491 (P < 0.05) and -0.613 (P < 0.01), respectively.
CONCLUSIONS: Volume-occupying rate of cervical spinal canal is an objective reflection of compression on cervical spine and spinal cord, and it is associated with cervical spinal cord function. These suggest that it may play a significant role in predicting the development of CSM.
Fulong Dong; Cailiang Shen; Shu Jiang; Renjie Zhang; Peiwen Song; Yongqiang Yu; Shiyu Wang; Xiaohu Li; Gang Zhao; Changhai Ding
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Publication Detail:
Type:  Journal Article     Date:  2013-01-06
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:  22     ISSN:  1432-0932     ISO Abbreviation:  Eur Spine J     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-05-20     Completed Date:  2013-12-30     Revised Date:  2014-05-07    
Medline Journal Info:
Nlm Unique ID:  9301980     Medline TA:  Eur Spine J     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1152-7     Citation Subset:  IM    
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MeSH Terms
Cervical Vertebrae / pathology*
Magnetic Resonance Imaging
Middle Aged
Organ Size
Spinal Canal / pathology*
Spinal Cord Compression / pathology*
Spondylosis / pathology*

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