Operations were carried out on 850 patients with neurological complications of lumbar osteochondrosis. Epidurography with 35-40% verografin solution was conducted before the operation in 795 patients. The method is described. Two variants of epidurograms are distinguished. The 1st variant is characteristic of protrusions of the disk or Schmorl's body and is manifested by a distorted band of the contrast medium at the level of the affected disk. The 2nd variant is typical of epiduritis with or without Schmorl's body; in this case the contrast medium is distributed irregularly in the epidural space or is absent at the level of the affected segments. Statistically significant data were obtained in 89% of patients.
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