Tibial nerve dysfunction Tibial nerve dysfunction is a loss of
movement or sensation in the foot from damage to the tibial
nerve. Neuropathy - posterior tibial nerve; Tarsal tunnel
syndrome Tibial nerve dysfunction is an unusual form of
peripheral neuropathy. It occurs when there is damage to the
tibial nerve, one of the lower branches of the sciatic nerve of
the leg. The tibial nerve supplies movement and sensation to the
calf and foot muscles. A problem in function with a single nerve
group, such as the tibial nerve, is called mononeuropathy. The
usual causes are: - Direct trauma - Pressure on the nerve for a
long period of time - Pressure on the nerve from nearby body
structures Entrapment createes pressure on the nerve where it
passes through a narrow structure. The damage may destroy the
myelin sheath that protects and insulates the nerve, or part of
the nerve cell (the axon). This damage reduces or prevents the
movement of impulses through the nerve. The tibial nerve is
often injured by pressure from a