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Lateral Femoral Cutaneous Nerve Entrapment

  • Lisa Rochelle WitkinEmail author
  • Amitabh Gulati
  • Tiffany Zhang
  • Helen W. Karl

Abstract

The lateral femoral cutaneous nerve (LFCN) is a sensory nerve innervating the anterolateral thigh. It is susceptible to entrapment along its course, usually at its exit from the pelvis under the inguinal ligament. The typical presentation of LFCN neuropathy is pain, paresthesia or dysesthesia, and numbness over the anterolateral thigh. Meralgia paresthetica is the name of this clinical syndrome. However, due to the great variation of LFCN distribution, the clinical presentation may be atypical; other causes such as lumbar radiculopathy need to be ruled out. The management of LFCN neuropathy includes treating underlying conditions and providing symptomatic relief with steroid nerve blocks.

Keywords

Lateral femoral cutaneous nerve (LFCN) LFCN entrapment Meralgia paresthetica Anterior superior iliac spine (ASIS) Inguinal ligament 

Supplementary material

Video 61.1

Physical exam of the lateral femoral cutaneous nerve (MOV 29000 kb)

Video 61.2

Landmark-guided injection of the lateral femoral cutaneous nerve (MOV 34295 kb)

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Lisa Rochelle Witkin
    • 1
    Email author
  • Amitabh Gulati
    • 2
  • Tiffany Zhang
    • 3
  • Helen W. Karl
    • 4
  1. 1.Division of Pain Medicine, Department of AnesthesiologyNew York-Presbyterian/Weill Cornell Medical CenterNew YorkUSA
  2. 2.Anesthesiology and Critical CareMemorial Sloan Kettering Cancer CenterNew YorkUSA
  3. 3.Department of Anesthesiology and Pain MedicineUniversity of Washington Medical CenterSeattleUSA
  4. 4.Department of Anesthesiology and Pain MedicineUniversity of Washington, Seattle Children’s HospitalSeattleUSA

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