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Updated: May 24, 2026

Assessment of Neuromuscular Function Using Percutaneous Electrical Nerve Stimulation
Published on: September 13, 2015
Electrodiagnostic evaluation of lower extremity mononeuropathies
Vera Fridman1, William S David
1Department of Neurology, Neuromuscular Diagnostic Center, Massachusetts General Hospital, Charles River Plaza, Suite 820, 165 Cambridge Street, Boston, MA 02114, USA. vfridman@partners.org
This article explains lower limb mononeuropathies, detailing diagnostic approaches for conditions like peroneal and tibial neuropathies. It reviews electrodiagnostic methods to identify causes of foot drop and knee buckling.
Area of Science:
- Neurology
- Neurophysiology
Background:
- Lower limb mononeuropathies are common neurological disorders.
- Accurate diagnosis is crucial for effective patient management.
Purpose of the Study:
- To discuss the anatomy of lower limb mononeuropathies.
- To review the electrodiagnostic evaluation of these conditions.
Main Methods:
- Nerve conduction studies (NCS).
- Needle electromyography (EMG).
- Case illustrations of common presentations (floppy foot, buckling knee, painful foot).
Main Results:
- Demonstrates characteristic electrodiagnostic findings for peroneal, tibial, sciatic, femoral, and obturator neuropathies.
- Illustrates how NCS and EMG aid in diagnosing specific lower limb mononeuropathies.
Conclusions:
- Electrodiagnostic testing is essential for diagnosing lower limb mononeuropathies.
- Understanding the anatomy and electrophysiological patterns facilitates accurate localization and diagnosis.
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