Selectivity of Intramuscular Stimulating Electrodes in the Lower Limbs
By Triolo, Ronald J., PhD; Liu, May Q.; Kobetic, Rudi; Uhlir, James; Journal of Rehabilitation Research and Development, Vol. 38, No. 5, pp. 533-544Publication Date: September/October 2001
Study to determine the selectivity of monopolar intramuscular stimulating electrodes implanted in the lower limbs of individuals with motor and sensory complete paraplegia secondary to spinal cord injury, and to catalog the most common electrode spillover patterns. Selectivity refers to the ability of an electrode to activate the targeted nerve and produce an isolated muscle contraction without recruiting other muscle groups. Spillover refers to the unintended neural reaction to stimulus, which was targeted toward a different nerve and muscle. The performance records of electrodes implanted in the lower limbs of ten individuals with paraplegia secondary to spinal cord injury (SCI) were examined. Sixty percent of these electrodes were stable, and thirty-two percent demonstrated spillover. Common spillover pattern for eight muscle groups were tabulated and are discussed in terms of their functional implications.
Published by:
VA Rehabilitation Research & Development Service (Web Site: http://www.rehab.research.va.gov )
Link to text: http://www.vard.org/jour/01/38/5/liu385.htm
This publication is included in the library of the National Rehabilitation Information Center (NARIC), accession number J43426
