Fibrous band compression of the tibial nerve branch of the sciatic nerve

Compression of the sciatic nerve, or its branches, by a fibrous band in the thigh region is a rare cause of sciatic neuropathy. A 42-year-old farmer with a 1-year history of right leg dysesthesias in the tibial nerve distribution was found on surgical exploration to have a fibrous band constricting the tibial branch of the sciatic nerve proximal to the popliteal fossa. Sectioning of this probably congenital band provided prompt relief of her symptoms with no recurrence 12 months after surgery.