FIELD: medicine.;SUBSTANCE: invention refers to medicine, namely to spinal surgery, and can be used for treating spinal deformities in posterior support column dysraphia. From the midline incision, in accordance with preoperative planning, a dorsal approach to the posterior column of the spinal column is performed. Length of access is defined by zone of instrumentation. Spine skeletization is applied to lateral surface of vertebral bodies. Transpedicular screws are inserted intracorporeally into vertebral bodies in an oblique-transverse direction bilaterally towards each other, conducting the screws at an angle to the sagittal plane in vertebral bodies, coming in from behind and penetrating through the side surface into the vertebral body. Screw heads are arranged at the level of the vertebral body. Longitudinal rods of the transpedicular fixation system are mounted. It is followed by a derotation maneuver, distraction along the concave side of deformation, a transpedicular fixation system is fixed, and the wounds are closed. It is possible to install transpedicular screws with length from 30 to 90 mm with diameter from 4 to 6.5 mm.;EFFECT: method provides correction of spinal deformity with improvement of frontal and sagittal body balance in the absence of a posterior support column of vertebras and deficiency of integument tissues due to possibility of long screws inserting.;1 cl, 9 dwg
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