METHOD FOR POSTERIOR DECOMPRESSION OF THE SPINAL CORD WITH STENOSE OF THE SPINAL CANAL Russian patent published in 2023 - IPC A61B17/00 A61B17/70 

FIELD: medicine.

SUBSTANCE: invention relates to spinal surgery and neurosurgery, and can be used to treat congenital hip dislocation and spinal canal stenosis and spinal cord compression at the level of the cervical and thoracic spine. Surgical intervention is performed from the dorsal bilateral access. After exposure of the posterior structures of the spine, the vertebrae are stabilized by passing screws through the pedicles into the vertebral body, and a transpedicular fixation system is installed in the vertebrae according to preoperative planning. Control is carried out to assess the position of the screws. The length of the cutting part of the ultrasonic scalpel is selected taking into account the thickness of the vertebral arch in the access area according to the data of computed tomography performed at the planning stage of the operation. The vertebral arches are sawn through, at the level of spinal canal stenosis, with the help of an ultrasonic bone scalpel, irrigation fluid is supplied to the cutting area of the supply. An incision is made with a scalpel in the lateral part of the vertebral arches in the projection of the lateral pockets of the spinal canal, without touching the membranes and tissues of the spinal cord with the cutting part. The depth of penetration of the cutting part of the scalpel into the tissue is visually and tactilely controlled. The vertebral arch is pulled upward from the spinal cord behind the spinous process and the arch is separated from the dura mater together with the yellow ligament. The arc and yellow ligament are removed in one conglomerate. The spinal deformity is corrected and the transpedicular fixation system is installed. Spinal fusion is performed with an autorib, mounting two autorib fragments to the rods of the transpedicular fixation system bilaterally.

EFFECT: method provides decompression of the spinal cord without any additional intraoperative trauma due to the exclusion of accidental contact of the instrument with the soft tissues of the spinal cord.

1 cl, 7 dwg