AIM:To observe the curative effect of sodium hyaluronate(SH) in treating lumba r disc herniation(LDH) so as to select optimal methods for the treatment of disc derived low back pain caused by intervertebral disc injury. METHODS:The experiment was conducted in the Department of Rehabilitation Medic ine,First Affiliated Hospital of Nanjing Medical University from January 2003 to May 2004.Totally 136 patients with chronic pain of low back and leg who broke o ut acutely proved by CT and MRI as LDH were treated ...