Related Experiment Videos
Meralgia paresthetica: diagnosis and treatment
M G Grossman1, S A Ducey, S S Nadler
1Kerlan-Jobe Orthopedic Institute, Suite 125, 6801 Park Terrace, Los Angeles, CA 90045, USA.
The Journal of the American Academy of Orthopaedic Surgeons
|September 29, 2001
Summary
Meralgia paresthetica, characterized by thigh numbness and pain, often stems from lateral femoral cutaneous nerve (LFCN) entrapment. Diagnosis and treatment involve identifying compression causes and considering nonoperative or surgical interventions.
Area of Science:
- Neurology
- Orthopedics
- Surgical Anatomy
Background:
- Meralgia paresthetica presents as numbness, pain, and paresthesias in the anterolateral thigh.
- It arises from entrapment or neuroma of the lateral femoral cutaneous nerve (LFCN).
- Symptoms are differentiated by exacerbating factors and characteristic sensory distribution.
Purpose of the Study:
- To review the etiology, diagnosis, and management of meralgia paresthetica.
- To highlight the role of LFCN anatomy in spontaneous and iatrogenic cases.
- To discuss current treatment modalities, including nonoperative and surgical options.
Main Methods:
- Literature review of meralgia paresthetica.
- Analysis of anatomical variations of the LFCN.
- Evaluation of diagnostic techniques, including anesthetic blocks.
- Review of nonoperative and surgical treatment outcomes.
Main Results:
- Spontaneous meralgia paresthetica is typically mechanical, often due to LFCN compression near the pelvis.
- Iatrogenic cases can occur after orthopedic procedures like bone-graft harvesting or pelvic surgery.
- Diagnostic anesthetic blocks can confirm LFCN involvement.
- Nonoperative treatments (e.g., NSAIDs, corticosteroid injections) are often effective for idiopathic cases.
Conclusions:
- Meralgia paresthetica diagnosis relies on symptom patterns and diagnostic blocks.
- Nonoperative management is usually successful for idiopathic cases.
- Surgical intervention for intractable pain remains controversial.
- Avoiding LFCN injury during surgery is crucial, especially given anatomical variations.