DefinitionTibial nerve dysfunction is a loss of movement or sensation in the lower leg, caused by damage to the tibial nerve.Alternative NamesNeuropathy - tibial nerveCauses, incidence, and risk factorsTibial nerve dysfunction is a form of peripheral neuropathy. It occurs when there is damage to the tibial nerve, one of the branches of the sciatic nerve of the leg. The tibial nerve supplies movement and sensation to the calf and foot muscles.Dysfunction of a single nerve group, such as the tibial nerve, is called mononeuropathy. Mononeuropathy implies a local cause of the nerve damage, although occasionally systemic disorders may cause isolated nerve damage (such as occurs with mononeuritis multiplex).The usual causes are direct trauma, prolonged pressure on the nerve, and compression of t