Preserved corticospinal conduction without voluntary movement after spinal cord injury.
Publication/Presentation Date
10-1-2013
Abstract
STUDY DESIGN: Case report.
OBJECTIVES: To identify preserved corticomotor connection in chronic spinal cord injury (SCI) in the absence of clinically observable movement.
SETTING: Rehabilitation Hospital and Medical Research Institute, NY, USA.
METHODS: The motor-evoked potential (MEP) response to transcranial magnetic stimulation (TMS) was recorded using surface electromyography from the right biceps brachii, extersor carpi radialis (ECR), flexor carpi radialis (FCR) and abductor pollicis brevis (APB) muscles in a 31-year-old male traumatic SCI chronic patient-ASIA B, injury level C5. Motor power scores were additionally obtained from a clinician blinded to the results of TMS.
RESULTS: TMS could consistently elicit MEPs of normal latency, phase and amplitude, in the severely affected ECR muscle but not the similarly affected FCR muscle. The response in proximal and unaffected biceps muscle was larger than the healthy subject, whereas no response was obtained in the distal APB muscle as expected.
CONCLUSION: TMS can identify residual pathways not apparent from clinical assessment alone, which may have prescriptive value for rehabilitation.
Volume
51
Issue
10
First Page
765
Last Page
767
ISSN
1476-5624
Published In/Presented At
Edwards, D. J., Cortes, M., Thickbroom, G. W., Rykman, A., Pascual-Leone, A., & Volpe, B. T. (2013). Preserved corticospinal conduction without voluntary movement after spinal cord injury. Spinal cord, 51(10), 765–767. https://doi.org/10.1038/sc.2013.74
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
23896664
Department(s)
Administration and Leadership
Document Type
Article