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KMID : 1140920210450020116
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Annals of Rehabilitation Medicine
2021 Volume.45 No. 2 p.116 ~ p.122
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Is Abnormal Electrodiagnostic Finding Related to the Cross-Sectional Area of the Nerve Root in Cervical Radiculopathy?
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Jeoung Ju-Hyong
Choi Hyuk-Sung
Woo Sang-Rok
Kang Seok
Yoon Joon-Shik
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Abstract
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Objective: To assess the relevance of electrodiagnosis (EDX) in the cross-sectional area (CSA) of the nerve root of patients with cervical radiculopathy (CR) by using high-resolution ultrasonography (HRUS).
Methods: The CSAs of the cervical nerve roots at C5, C6, and C7 were measured bilaterally using HRUS in 29 patients with unilateral CR whose clinical symptoms, magnetic resonance imaging (MRI) findings, and EDX results corresponded with each other (CR-A group), and in 26 patients with unilateral CR whose clinical symptoms and MRI findings matched with each other but did not correspond with the EDX findings (CR-B group).
Results: The CSA of the affected side in each nerve root was significantly larger than that of the unaffected side in both the CR-A and CR-B groups. The side-to-side difference in the bilateral CSAs of the nerve root and the ratio of the CSAs between the unaffected and affected sides were statistically larger in the CR-A group than in the CR-B group.
Conclusion: The increased CSAs in the CR-A group reflect the physiological changes of the cervical nerve root, which is supported by the EDX findings.
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KEYWORD
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Radiculopathy, Electrodiagnosis, Magnetic resonance imaging, Spinal nerve roots, Ultrasonography
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