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Open Access Publications from the University of California

Electrophysiologic studies in selective dorsal rhizotomy for spasticity in children with cerebral palsy

  • Author(s): Cahan, LD
  • Kundi, MS
  • Mc Pherson, D
  • Starr, A
  • Peacock, W
  • et al.

Published Web Location Commons Attribution 4.0 International Public License

A group of 20 children with spastic cerebral palsy underwent selective dorsal rhizotomy for alleviation of spasticity. Pre- and postoperatively, cortical somatosensory evoked responses (cSSEP), H reflex and F wave studies were done. Clinically there was dramatic reduction of tone without noticeable sensory loss. The electrophysiologic studies showed several findings: (I) many children have abnormal cSSEP preopera-tively; (2) surgery seldom leads to a loss of cSSEP; (3) in many patients, there is a noteworthy improvement in the cSSEP wave form: (4) some children have electrophysiologic evidence of spinal cord dysfunction preoperatively and (5) Hmax/Mmax ratio decreases after surgery confirming decrease in tone. © 1987 S. Karger AG. Basel.

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