What is the role of needle EMG in the diagnosis of nerve entrapment syndromes of the lower extremity?

Updated: Oct 15, 2019
  • Author: Minoo Hadjari Hollis, MD; Chief Editor: Thomas M DeBerardino, MD  more...
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Answer

Unfortunately, there are no reliable electrodiagnostic techniques for fully defining the integrity of the iliohypogastric, ilioinguinal, and genitofemoral nerves. Needle electromyography (EMG) of the lower abdominal musculature may serve as an adjunct in the diagnosis of iliohypogastric nerve injury. Although abdominal needle EMG may help determine the severity of ilioinguinal nerve injury, it is neither sensitive nor specific. A side-to-side sensory comparison study has been described for the genitofemoral nerve, but it is technically difficult to perform. [40]


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