Fig.8. Control CT examination at the level of L5-S1: Peripheral segments of the disk protrude to a distance of not more than 2-3 mm. There is no impact on the dural infundibulum of the S1 left root. Mild fibrous changes in left segments of the epidural space along an operative approach path are watched. There are initial manifestations of deforming spondylosis due to changes in the anterior longitudinal ligament.