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Assessment of Long Sensory Tract Conduction in Patients Undergoing Dorsal Root Entry Zone Coagulation for Pain Relief

  • S. J. Jones
  • D. G. T. Thomas

Summary

Cortical somatosensory evoked potentials were recorded pre- and postoperatively, and conducted spinal cord potentials peroperatively, following posterior tibial nerve stimulation in patients undergoing dorsal root entry zone coagulation for pain relief. The majority were cases of brachial plexus avulsion. Cortical SEPs (initially normal in all patients except 2) showed significant deterioration postoperatively in 7 out of 10, correlating with the development of sensory and/or motor deficits in the lower limbs. Conducted spinal cord potentials, however, showed no such deterioration, indicating that the defect was unlikely to have been directly due to the surgical lesions but may have been a consequence of ischaemia or inflammation.

Keywords

Brachial Plexus Cervical Spondylotic Myelopathy Posterior Tibial Nerve Posterior Tibial Nerve Stimulation Dorsal Root Entry Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Halliday AM, Wakefield GS (1963) Cerebral evoked potentials in patients with dissociated sensory loss. J Neurol Neurosurg Psychiat 26:211–219PubMedCrossRefGoogle Scholar
  2. Jones SJ, Edgar MA, Ransford AO (1982) Sensory nerve conduction in the human spinal cord: epidural recordings made during scoliosis surgery. J Neurol Neurosurg Psychiat 45:446–451PubMedCrossRefGoogle Scholar
  3. Jones SJ, Edgar MA, Ransford AO, Thomas NP (1983) A system for the electrophysiological monitoring of the spinal cord during operations for scoliosis. J Bone Joint Surg 65-B:134–139Google Scholar
  4. Jones SJ, Wynn Parry CB, Landi A (1981) Diagnosis of brachial plexus traction lesions by sensory nerve action potentials and somatosensory evoked potentials. Injury 12:376–382PubMedCrossRefGoogle Scholar
  5. Nashold BS, Ostdahl RH (1979) Dorsal root entry zone lesions for pain relief. J Neurosurg 51:59–69PubMedCrossRefGoogle Scholar
  6. Trojaborg W, Pedersen E (1979) Visual and somatosensory evoked potentials in multiple sclerosis. J Neurol Neurosurg Psychiat 42:323–330PubMedCrossRefGoogle Scholar
  7. Yu YL, Jones SJ (1985) Somatosensory evoked potentials in cervical spondylosis: correlation of median, ulnar and posterior tibial nerve responses with clinical and radiological findings. Brain 108:273–300PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • S. J. Jones
    • 1
  • D. G. T. Thomas
  1. 1.Medical Research Council and Gough Cooper Department of Neurological SurgeryThe National Hospital for Nervous DiseasesLondonGreat Britain

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