Interface pressure and cutaneous hemoglobin and oxygenation changes under ischial tuberosities during sacral nerve root stimulation in spinal cord injury

Article

Liu, L., Nicholson, G., Knight, S., Chelvarajah, R., Gall, A., Middleton, F., Ferguson-Pell, M. and Craggs, M. 2006. Interface pressure and cutaneous hemoglobin and oxygenation changes under ischial tuberosities during sacral nerve root stimulation in spinal cord injury. Journal of Rehabilitation Research & Development. 43 (4), pp. 553-564. https://doi.org/10.1682/JRRD.2005.08.0135
TypeArticle
TitleInterface pressure and cutaneous hemoglobin and oxygenation changes under ischial tuberosities during sacral nerve root stimulation in spinal cord injury
AuthorsLiu, L., Nicholson, G., Knight, S., Chelvarajah, R., Gall, A., Middleton, F., Ferguson-Pell, M. and Craggs, M.
Abstract

Noninvasive functional magnetic stimulation (FMS) of the sacral nerve roots can activate gluteal muscles. We propose the use of sacral anterior root stimulator (SARS) implants to prevent ischial pressure ulcers in the spinal cord injury (SCI) population. In this study, we (1) investigated the acute effects of sacral FMS on ischial pressure, skin blood content, and oxygenation changes in people with SCI and demonstrated the utility of FMS as an assessment tool, and (2) showed that similar effects are possible with electrical stimulation via a SARS implant. Results indicated that sacral nerve root stimulation, either by FMS or implanted electrical stimulation, induced sufficient gluteus maximus contraction to significantly change subjects' ischial pressures and cutaneous hemoglobin and oxygenation during sitting. In addition to these beneficial acute effects, chronic stimulation via a SARS implant may build gluteal muscle bulk and prevent or reduce pressure ulcers in the SCI population.

KeywordsFunctional electrical stimulation; functional magnetic stimulation; gluteal muscles; ischial pressure change; ischial tuberosity; pressure ulcer; rehabilitation; sacral nerve root stimulation; seat interface pressure; spinal cord injury; tissue reflectance spectrometry
PublisherRehabilitation Research and Development Service, Department of Veterans Affairs
JournalJournal of Rehabilitation Research & Development
ISSN0748-7711
Publication dates
Print2006
Publication process dates
Deposited22 Aug 2013
Output statusPublished
Digital Object Identifier (DOI)https://doi.org/10.1682/JRRD.2005.08.0135
LanguageEnglish
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