Change in body surface temperature as an ancillary measurement to motor evoked potentials
- Authors
- Yang, J. H.; Suh, S. W.; Park, Y-S; Lee, J-H; Park, B. K.; Ham, C. H.; Choi, J. W.
- Issue Date
- 2015
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- SPINAL CORD, v.53, pp.827 - 834
- Indexed
- SCIE
SCOPUS
- Journal Title
- SPINAL CORD
- Volume
- 53
- Start Page
- 827
- End Page
- 834
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158306
- DOI
- 10.1038/sc.2015.90
- ISSN
- 1362-4393
- Abstract
- Study design:
Experimental study.
Objectives:
To study the role of surface temperature as an adjunct to motor evoked potentials (MEPs) in rabbit spinal cord injury (SCI) model.
Setting:
Department of Orthopedics, Korea University Guro Hospital, Seoul, Korea.
Methods:
Rabbits (n=18) were divided into Complete (n=9) and Incomplete (n=9) SCI groups. Complete SCI was defined as being non-responsive to a wake-up test with loss of MEPs after transection of spinal cord. Incomplete SCI was defined as being responsive to a wake-up test with significant attenuation (⩾80%) of MEPs after impaction on spinal cord. Surface temperature of upper and lower extremities, core temperature and MEPs signals were checked before, during and after SCI for 20 min. A wake-up test was conducted and spinal cord was histologicaly evaluated.
Results:
Experimental conditions between the two groups were statistically similar (P>0.005 for all values). After SCI, upper extremity temperatures did not change in either group (P>0.005); however, the surface temperature of the lower extremities in the Complete SCI Group elevated to 1.7±0.5 °C in comparison to 0.5±0.1 °C in the Incomplete SCI Group (P<0.001). The scores of wake-up test in the Incomplete SCI Group were significantly different from that of the Complete SCI Group (P<0.001), while white and gray matter damage was variable on histology.
Conclusions:
Monitoring of changes of body surface temperature of the lower extremities can be potentially used to identify the completeness of SCI in a rabbit model.
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