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Value of Paraspinal Electromyography in the Evaluation of Thoracic Myelopathy
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- Authors
- Issue Date
- 1989-03
- Citation
- Seoul J Med, Vol.30 No.1, pp. 25-30
- Keywords
- Paraspinal needle EMG ; Thoracic myelopathy ; Demonstrable thoracic lesion ; Non-demonstrable thoracic lesion
- Abstract
- The authors have performed paraspinal needle EMG studies in twenty five
patients with thoracic myelopathy. They were divided into demonstrable thoracic lesions and
non-demonstrable thoracic lesions by neuroimaging studies resulting in 12 cases of the
former and 13 cases of the latter.
There were abnormal paraspinal EMG findings in 83% with demonstrable thoracic lesions.
All five patients with thoracic disc diseases revealed abnormalities which indicated subsequent
involvement of ventral roots by compressive lesions. In non-demonstrable thoracic
lesions, the authors could demonstrate abnormal paraspinal EMGs in a relatively high percentage
(62.5%) of preseumed and still occult thoracc myelopathy, but not in all four
patients with demyelinating disease.
Therefore it is concluded that paraspinal EMG studies are valuable in those patients wih
thoracic myelopathy as a method of predicting he presumed nature of their causes and
indicating the level of anticipated myelography or spinal CT. However, it was impossible to
differentiate among patients with malignancy, those with thoracic disc diseases and those
with unknown thoracic myelopathy by the paraspinal EMG studies.
- ISSN
- 0582-6802
- Language
- English
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