Congenital carpal tunnel syndrome. A case report.

A boy with bilateral idiopathic congenital carpal tunnel syndrome was first seen at the age 4 years 6 months. He presented with triggering of the finger flexors at the wrist, abnormal posturing of the fingers and inability to pinch on one side. The triggering was relieved by transection of the transverse retinaculum. Pinch was restored by a tendon transfer. There have been no previous reports of idiopathic carpal tunnel syndrome present since birth. The literature and case are reviewed.