Anatomy Answer 1
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Ans. Lateral cutaneous nerveReview:
- Meralgia paresthetica refers to the pain along the anterolateral part of the thigh due to entrapment of the Lateral Femoral Cutaneous Nerve as it passes below the Inguinal Ligament.
- Pain on the outer side of the thigh, occasionally extending to the outer side of the knee
- A burning sensation, tingling, or numbness in the same area
- Occasionally, aching in the groin area or pain spreading across the buttocks
- Usually only on one side of the body
- Usually more sensitive to light touch than to firm pressure
- Reviewing the anatomy of the LFCN is essential for understanding the mechanism of its injury.
- The LFCN originates directly from the lumbar plexus and has root innervation from L2-3. The nerve runs through the pelvis along the lateral border of the psoas muscle to the lateral part of the inguinal ligament.
- Here, it passes to the thigh through a tunnel formed by the lateral attachment of the inguinal ligament and the anterior superior iliac spine.
- This is the most common site of entrapment.
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Category: AIIMS Nov 2006 MCQs
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4 comments:
I would be interested to know how long this condition can last and whether similar symptoms experienced in the lower limbs ( inner calf and near the ankle), in addition to the thighs, could have the same cause?
can this condition also affect the calf mucles/nerves please?
can this condition also affect the calf mucles/nerves please?
@ anonymous
It is unlikely that this condition will affect the calf muscles. If there is pain in the calf muscles, the problem might lie somewhere else. It is better to consult a nerve specialist if the symptoms persist beyond 2- 3 weeks.
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