METHOD FOR SPINAL CANAL REPAIR ACCOMPANYING LUMBOSACRAL STENOSIS

摘要

FIELD: medicine.;SUBSTANCE: invention refers to medicine, namely to neurosurgery in bilateral compression lumbosacral stenosis, including multisegmental one. The method involves skeletonising an interspinous space in a projection of the maximum constrictive process. A separated spinous process of the vertebra is conditionally divided into three parts - distal, middle and proximal. An apex of the spinous process of the vertebra is dissected away counter-laterally in a horizontal plane at the boundary between the distal and middle parts. The muscles attached to a base of the spinous process of the vertebra are skeletonised from the opposite side. Central and lateral regions of the spinal canal are extended with preserving the facet joints from both sides. A hypertrophied portion of the yellow ligament is layered and incised from the stenosis to the dural sac with preserving supraspinous and interspinous ligaments. A posterior wall of the spinal canal is repaired. The pre-dissected apex of the spinous process of the vertebra is fixed to the muscular-ligamentous apparatus from the homolateral (operated) side.;EFFECT: method preserves natural biomechanics of the operated lumbosacral stenoses by avoiding coarse injuries of the musculoligamentous posterior support structures of the vertebra, and prevents recurrent stenosis.;1 ex, 4 dwg