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Femoral Mononeuropathy Workup

  • Author: Wayne E Anderson, DO, FAHS, FAAN; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
Updated: Mar 24, 2016

Approach Considerations

Nerve conduction studies and electromyography

Evaluation for femoral nerve dysfunction includes nerve conduction studies (NCS) and needle electromyography (EMG). NCS should include sensory studies of the saphenous nerve and motor studies of the femoral nerve. When evaluating femoral NCS, results on the symptomatic side should be compared with those on the asymptomatic side. On EMG, the quadriceps should show neuropathic changes.

Imaging studies

In cases of suspected retroperitoneal hematoma, an emergent computed tomography (CT) scan of the pelvis should be performed.

In cases in which the etiology is not apparent, magnetic resonance imaging (MRI) or CT scanning of the pelvis may help in localizing the site of compression and may define the etiology (eg, tumor, abdominal aortic aneurysm, iliac aneurysm).

Contributor Information and Disclosures

Wayne E Anderson, DO, FAHS, FAAN Assistant Professor of Internal Medicine/Neurology, College of Osteopathic Medicine of the Pacific Western University of Health Sciences; Clinical Faculty in Family Medicine, Touro University College of Osteopathic Medicine; Clinical Instructor, Departments of Neurology and Pain Management, California Pacific Medical Center

Wayne E Anderson, DO, FAHS, FAAN is a member of the following medical societies: California Medical Association, American Headache Society, San Francisco Medical Society, San Francisco Medical Society, International Headache Society, California Neurology Society, San Francisco Neurological Society, American Academy of Neurology, California Medical Association

Disclosure: Received honoraria from Teva for speaking and teaching; Received grant/research funds from Allergan for other; Received honoraria from Insys for speaking and teaching; Received honoraria from DepoMed for speaking and teaching.

Chief Editor

Nicholas Lorenzo, MD, MHA, CPE Founding Editor-in-Chief, eMedicine Neurology; Founder and CEO/CMO, PHLT Consultants; Chief Medical Officer, MeMD Inc

Nicholas Lorenzo, MD, MHA, CPE is a member of the following medical societies: Alpha Omega Alpha, American Association for Physician Leadership, American Academy of Neurology

Disclosure: Nothing to disclose.


Neil A Busis, MD Chief, Division of Neurology, Department of Medicine, Head, Clinical Neurophysiology Laboratory, University of Pittsburgh Medical Center-Shadyside

Neil A Busis, MD is a member of the following medical societies: American Academy of Neurology and American Association of Neuromuscular and Electrodiagnostic Medicine

Disclosure: Nothing to disclose.

Elizabeth A Sekul , MD Associate Professor of Pediatrics and Neurology, Medical College of Georgia

Elizabeth A Sekul, MD is a member of the following medical societies: American Academy of Neurology; American Association of Neuromuscular and Electrodiagnostic Medicine; and Child Neurology Society

Disclosure: Nothing to disclose.

Aashit K Shah, MD Associate Professor of Neurology, Wayne State University; Program Director, Clinical Neurophysiology Fellowship, Department of Neurology, Detroit Medical Center

Aashit K Shah, MD is a member of the following medical societies: American Academy of Neurology, American Clinical Neurophysiology Society, and American Epilepsy Society

Disclosure: Nothing to disclose.

Francisco Talavera, PharmD, PhD, Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Reference Salary Employment

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