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Intraoperative monitoring study of ipsilateral motor evoked potentials in scoliosis surgery

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Abstract

Ipsilateral motor evoked potentials (MEPs) in spinal cord surgery intraoperative monitoring is not well studied. We show that ipsilateral MEPs have significantly larger amplitudes and were elicited with lower stimulation intensities than contralateral MEPs. The possible underlying mechanisms are discussed based on current knowledge of corticospinal pathways. Ipsilateral MEPs may provide additional information on the integrity of descending motor tracts during spinal surgery monitoring.

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Authors and Affiliations

  1. Department of Neurology, National Neuroscience Institute, Singapore General Hospital, Singapore, Singapore

    Y. L. Lo

  2. Department of Neurology, Singapore General Hospital, Singapore, Singapore

    Y. F. Dan & Y. E. Tan

  3. Department of Clinical Research, Singapore General Hospital, Singapore, Singapore

    S. Fook-Chong

  4. Department of Orthopedic Surgery, Singapore General Hospital, Singapore, Singapore

    S. B. Tan & C. T. Tan

  5. Anesthesia and Surgical Intensive Care, Singapore General Hospital, Singapore, Singapore

    S. Raman

Authors
  1. Y. L. Lo
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  2. Y. F. Dan
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  3. Y. E. Tan
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  4. S. Fook-Chong
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  5. S. B. Tan
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  6. C. T. Tan
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  7. S. Raman
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Correspondence to Y. L. Lo.

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Lo, Y.L., Dan, Y.F., Tan, Y.E. et al. Intraoperative monitoring study of ipsilateral motor evoked potentials in scoliosis surgery. Eur Spine J 15 (Suppl 5), 656–660 (2006). https://doi.org/10.1007/s00586-006-0190-0

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  • DOI: https://doi.org/10.1007/s00586-006-0190-0

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