Where 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.
Why is sural nerve used for grafts?
It divides into medial and lateral branches in 18%–100% in frequency, respectively [1]. In peripheral nerve surgery, the sural nerve graft is the most often used [2] donor nerve with its advantages like easy dissection, adequate length, and calibration [3, 4].
Where does the sural nerve arise from?
The sural nerve has its origins within the sciatic nerve, coming from terminal branches of the tibial and common fibular nerves.
What is the function of sural nerve?
The ulnar nerve helps you move your forearm, hand and certain fingers. Your forearm extends from the elbow to the hand. The ulnar nerve also sends sensory information like touch, temperature and pain to the brain. Ulnar nerve entrapment occurs when there’s pressure on the ulnar nerve.
How do you harvest a sural nerve graft?
The nerve may be harvested under tourniquet control to minimize bleeding during dissection, but is not necessary. The nerve is cut proximally and distally with a new scalpel blade and placed on moist gauze. If a single segmental defect is to be grafted, the nerve is reversed at inset.
What is sural in anatomy?
Sural nerve formation. at the distal third of the gastrocnemius, both sural cutaneous branches join to become the sural nerve. descends on the posterolateral aspect of leg. travels posterior to lateral malleolus and deep to fibularis tendon sheath.
How do you harvest sural nerves?
Which nerve is used for grafting?
Nerve grafting essentially involves taking a donor nerve from another part of the patient’s anatomy and using it to bridge the gap in the injured nerve. The common donor nerves used are the sural nerve, the lateral antebrachial nerve and the anterior branch of the medial antebrachial nerve.
What causes sural nerve damage?
Entrapment causes sural nerve pain. Sports injuries: Ankle sprains, which are a common sports injury, force your joint out of its natural position. Sprains can damage your sural nerve. Injury can also occur when ski boots or horse saddle ankle straps are too tight.
What is sural sensory response?
The pattern of an abnormal median-normal sural (AMNS) sensory response is associated with acute and chronic inflammatory demyelinating polyradiculoneuropathy (AIDP and CIDP) and considered unusual in other types of neuropathy, although specificity and sensitivity of this pattern have not been evaluated.
How do you perform a sural nerve biopsy?
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.