Unbound MEDLINE

Lateral femoral cutaneous nerve conduction v somatosensory evoked potentials for electrodiagnosis of meralgia paresthetica.

Abstract

The aim of this study is to compare sensory nerve conduction with somatosensory evoked potentials of the lateral femoral cutaneous nerve to determine which is the most reliable electrodiagnostic method to assess meralgia paresthetica. Thirty patients with unilateral clinically defined meralgia paresthetica and 30 controls were studied with both methods. The main outcome measures were sensory action potential side-to-side amplitude ratio, somatosensory evoked potentials side-to-side latency difference, and side-to-side amplitude ratio. Sensory nerve conduction was abnormal in all patients: only four participants had abnormal somatosensory evoked potentials with double derivation (Fz/Cz and Ci/Cc) recording, and eight participants had abnormal findings with Fz/Cz derivation. Overall, this study demonstrates that sensory nerve conduction is the more reliable method for meralgia paresthetica electrodiagnosis. In fact, only very serious nerve damage regularly induces abnormal somatosensory evoked potentials, which is not recommended for routine electrodiagnostic study of meralgia paresthetica.

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  • Publisher Full Text
  • Authors

    Seror P

    Source

    American journal of physical medicine & rehabilitation / Association of Academic Physiatrists 78:4 pg 313-6

    MeSH

    Adult
    Aged
    Case-Control Studies
    Electrophysiology
    Evoked Potentials, Somatosensory
    Female
    Femoral Nerve
    Humans
    Leg
    Male
    Middle Aged
    Nerve Compression Syndromes
    Neural Conduction
    Predictive Value of Tests
    Reproducibility of Results

    Pub Type(s)

    Comparative Study
    Journal Article

    Language

    eng

    PubMed ID

    10418835