Why is sural nerve used for biopsy?

Sural nerve biopsy usually represents the conclusive step in the diagnostic work-up of several peripheral neuropathies. It is an invasive procedure, so it is applied only in cases unresolved after an extensive workout; when successful it can modify the subsequent therapeutic choices (5–7).

When is a sural nerve biopsy done?

Sural nerve biopsy has complications of pain, infection, sensory loss, and delayed wound healing and should only be undertaken in cases of peripheral neuropathy where there are good prospects of its significantly assisting in the diagnosis, as was the case in the study of Gabriel et al,4 which examined the value of …

Why would you need a nerve biopsy?

Nerve biopsy is the removal of a small piece of nerve for examination. Through a small incision, a sample of nerve is removed and examined under a microscope. Nerve biopsy may be performed to identify nerve degeneration, identify inflammatory nerve conditions (neuropathies), or to confirm specific diagnoses.

How is sural nerve biopsy done?

An incision is made, and the lesser saphenous vein is identified. The vein is then retracted superficially to expose the sural nerve. For a complete nerve biopsy, untied sutures are placed into both ends of the nerve, and the nerve is transected above these sutures.

What does sural nerve supply?

The nerve is located near the midline in the lower leg and travels behind the lateral malleolus to innervate the foot. The sural nerve supplies sensation to the posterolateral aspect of the calf and the lateral aspect of the foot.

What happens after a sural nerve biopsy?

After the Procedure The biopsy site may be tender or sore for two to three days after a nerve biopsy. Take a pain reliever for soreness as recommended by your physician. Aspirin or certain other pain medications may increase the chance of bleeding. Be sure to take only recommended medications.

Can I walk after a nerve biopsy?

The patient is instructed not to walk, and to use a cane to go to the bathroom. After 24 hours and for about three to four days, light activities are allowed such as walking a few steps in the home.

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