Transdural epidurography in the diagnosis of lesions of the lumbar intervertebral disks

The anterior epidural space adjoining directly the posterior parts of the vertebral bodies, was examined with 8-12% solution of verografin in 140 patients with lumbar osteochodrosis. Of them 110 had been previously operated on. The use of low-concentration water-soluble iodine contrast agents makes it possible to avoid the stimulation of the epidural structures. X-ray appearance which is typical of protrusion and hernia of the intervertebral disks is described