Dong, F and Shen, C and Jiang, S and Zhang, R and Song, P and Yu, Y and Wang, S and Li, X and Zhao, G and Ding, C, Measurement of volume-occupying rate of cervical spinal canal and its role in cervical spondylotic myelopathy, European Spine Journal, 22, (5) pp. 1152-1157. ISSN 1432-0932 (2013) [Refereed Article]
Copyright 2013 Springer
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 (C4ĖC6 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 Pearsonís 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 Pearsonís 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.
|Item Type:||Refereed Article|
|Keywords:||cervical spine, volume-occupying rate of cervical spinal canal, spiral computed tomography, measurement|
|Research Division:||Biomedical and Clinical Sciences|
|Research Group:||Clinical sciences|
|Research Field:||Rheumatology and arthritis|
|Objective Group:||Clinical health|
|Objective Field:||Clinical health not elsewhere classified|
|UTAS Author:||Ding, C (Professor Chang-Hai Ding)|
|Funding Support:||Australian Research Council (FT110100276)|
|Web of Science® Times Cited:||14|
|Deposited By:||Menzies Institute for Medical Research|
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