From the Research
Definition and Characteristics of Meralgia Paresthetica
- Meralgia paresthetica (MP) is a condition characterized by paresthesias, neuropathic pain, and alterations in sensorium of the anterolateral thigh secondary to impingement of the lateral femoral cutaneous nerve (LFCN) 1.
- It is a compression neuropathy of the lateral femoral cutaneous nerve, producing similar symptoms to those associated with L4 or L5 radiculopathy 2.
- MP is a sensory mononeuropathy affecting the lateral femoral cutaneous nerve, typically diagnosed clinically with the aid of imaging and electrophysiology 3.
Diagnosis of Meralgia Paresthetica
- Diagnosis is essentially clinical, based on a coherent history and pertinent physical examination, with red flags such as tumor and lumbar disk herniations recognized and treated 4.
- Sensory nerve conduction velocity studies are a useful adjunctive diagnostic tool 4.
- Electrophysiological tests and nerve blocks play important roles when the diagnosis is uncertain 5.
- Imaging and electrophysiology are utilized as diagnostic aids, but there is no obviously superior diagnostic strategy for MP 3.
Management and Treatment of Meralgia Paresthetica
- Management includes treating the underlying cause and conservative management, with surgery adopted when all nonoperative therapies have failed 4.
- Conservative management, including lifestyle modifications and medications, is often the initial approach 1.
- Regional blocks and surgical management are considered when conservative management fails 1.
- Surgical options, such as decompression, radiofrequency ablation, or neurectomy, are suitable for patients who do not respond to conservative management and steroid injection 3.
- Other management strategies, such as botox, acupuncture, and kinesio taping, may have some value, but limited research exists on these strategies 3.