08/11/2025
Sural Nerve
The sural nerve is a purely sensory nerve in the lower leg that provides sensation to the back of the calf, the outer ankle, heel, and side of the foot. It is formed from parts of the tibial and common fibular nerves and can be used for nerve biopsies or grafting due to its superficial location and sensory function.
Conditions and symptoms
Pathologies: Conditions that can affect the sural nerve include entrapment, sports injuries, and complications from surgery.
Symptoms: Nerve entrapment or damage can cause pain, numbness, and tingling (paresthesia) along the nerve's pathway in the ankle and foot.
Neuropathy: In cases of diabetic neuropathy, the sural nerve is often affected early, leading to symptoms like numbness, pain, and tingling, especially at night.