We investigated the clinical results of continuous epidural block for 40 patients with lumbar disc herniations from 1989 to 1993 in our hospital.
This block was effective for 17 patients, but not for the other 23. The result showed a definite correlation between horizontal position and the form of disc herniation. This treatment achieved good results for central herniation but terded to be ineffective for treating partial herniation near the intervertebral foramen or protruded herniation.
