What is the role of electrodiagnostic testing in the workup of piriformis syndrome?

Updated: Sep 16, 2020
  • Author: Milton J Klein, DO, MBA; Chief Editor: Ryan O Stephenson, DO  more...
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The results of electrodiagnostic testing for piriformis syndrome usually are normal. Reports of positional H-reflex abnormalities can be found in the literature; [19, 20] however, such findings have not been widely accepted or reproduced.

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