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Meralgia Paresthetica
Aka: Meralgia Paresthetica, Lateral Femoral Cutaneous Nerve Entrapment
- See Also
- Groin Pain
- Abdominal Wall Pain Causes
- Pathophysiology
- Compression Neuropathy
- Entrapment of lateral femoral cutaneous nerve
- Associated with compression at inguinal ligament
- Associated conditions
- Obesity
- Wide belt
- Corset or tight jeans
- Pregnancy
- Diabetes Mellitus
- Prior inguinal surgery
- Symptoms
- Paresthesias or Dysesthesias at proximal lateral thigh
- Known as Meralgia Paresthetica
- Burning sensation
- Tingling or stinging pain
- Numb sensation
- Pain radiation
- Knee
- Buttock
- Low back
- Unilateral in most cases (may occur bilaterally)
- Provocative factors
- Sitting with involved leg under body
- Women commonly sit in this position
- Rifle team members
- Prolonged sitting or squatting
- Increased walking or standing
- Signs
- Motor function fully intact
- Hyperesthesia over lateral thick
- Increased light Touch Sensation
- Increased pinprick sensation
- Differential Diagnosis
- Femoral Neuropathy
- Lumbar Radiculopathy (L2-3, L3-4)
- Lumbar plexus lesions
- Diagnosis
- Electromyogram (EMG)
- Management
- Clothing changes
- Avoid wide belts
- Avoid tight garters or girdles
- Weight loss
- Capsaicin
- Elavil 30 mg qhs
- Local anesthetic and Corticosteroid
- Surgery rarely indicated
- Surgical Decompression
- Destruction of lateral femoral cutaneous nerve
- Course
- Spontaneous resolution in many cases by 2 years
- References
- Bernhardt (1878) Arch Klin Med 22:362
- Ecker (1938) JAMA 110:1650
- Williams (1991) J Neurosurg 74:76-80