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- Title
Relationship Between Motor Evoked Potential Response and the Severity of Paralysis in Spinal Cord Injury Patients.
- Authors
Mi-Kyoung Oh; Hye-Ri Kim; Won-Seok Kim; Hyung Ik Shin
- Abstract
Objective To investigate the relationship between motor evoked potential (MEP) response and the severity of motor paralysis, evaluated according to the Korean disability evaluation system in patients with spinal cord injury (SCI). Methods We analyzed 192 lower limbs of 96 SCI patients. Lower limbs were classified according to their motor scores, as determined by the International Standards for Neurological Classification of Spinal Cord Injury: motor score <10 (group 1); ≥10 and <15 (group 2); ≥15 and <20 (group 3); and ≥20 (group 4). MEP responses were classified as 'normal', 'delayed' or 'absent', based on their onset latency, which was compared between the different motor score groups. Results MEP responses and limb motor scores were highly correlated (p<0.001). There was a significant difference of MEP responses between the motor score groups (p<0.001). MEP response was markedly poorer in motor group 1 (limb motor score <10) than in the other three groups (p<0.0001). However, there were no differences between the three groups with motor scores of 10 or above. Conclusion Clinical utility of MEP as a complimentary tool to manual muscle tests could be limited to discriminating motor score groups with severe paralysis, i.e., single lower limb motor power grades of 0 or 1, and from grade 2, 3, and 4, or above, in the Korean disability evaluation system.
- Subjects
MOTOR ability; SPINAL cord injuries; THERAPEUTICS; PARALYSIS; MOTOR neurons; EVOKED potentials (Electrophysiology)
- Publication
Annals of Rehabilitation Medicine, 2017, Vol 41, Issue 2, p211
- ISSN
2234-0645
- Publication type
Article
- DOI
10.5535/arm.2017.41.2.211