LATERAL FEMORAL CUTANEOUS NERVE CONDUCTIONVSOMATOSENSORY EVOKED POTENTIALS FOR ELECTRODIAGNOSIS OF MERALGIA PARESTHETICA1
作者:
P. Seror,
期刊:
American Journal of Physical Medicine and Rehabilitation
(OVID Available online 1999)
卷期:
Volume 78,
issue 4
页码: 313-316
ISSN:0894-9115
年代: 1999
出版商: OVID
关键词: Meralgia Paresthetica;Sensory Nerve Conduction;Somatosensory Evoked Potential;Lateral Femoral Cutaneous Nerve;Entrapment Neuropathy
数据来源: OVID
摘要:
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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