Recruitment of dorsal columm fibers in spinal cord stimulation: influence of collateral branching

Johannes J. Struijk, J. Holsheimer, Gerlof G. van der Heide, Herman B.K. Boom

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    104 Citations (Scopus)
    65 Downloads (Pure)

    Abstract

    An electrical network model of myelinated dorsal column nerve fibers is presented. The effect of electrical simulation was investigated using both a homogeneous volume conductor and a more realistic model of the spinal cord. An important feature of dorsal column nerve fibers is the presence of myelinated collaterals perpendicular to the rostro-caudal fibers. It was found that transmembrane potentials, due to external monopolar stimulation, at the node at which a collateral is attached, is significantly influenced by the presence of the collateral. It is concluded that both excitation threshold and blocking threshold of dorsal column fibers are decreased up to 50% compared to unbranched fibers
    Original languageEnglish
    Pages (from-to)903-912
    Number of pages10
    JournalIEEE transactions on biomedical engineering
    Volume0
    Issue number39
    DOIs
    Publication statusPublished - 1992

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