METHOD OF PRE-OPERATIONAL PLANNING OF PARACENTETIC TRANSFORAMINAL NON-DISK ENDOSCOPIC ACCESS TO LUMBAR COLUMN SPINAL CANAL Russian patent published in 2018 - IPC A61B6/00 G06T7/174 G06F17/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, in particular to neurosurgery, traumatology and orthopedics, radiation diagnostics. Method includes performing a magnetic resonance tomography of the spine to produce sagittal, semi-axial and axial MR-sections of the lumbar column, and the scanned area includes spinal skin. Determine the linear and angular parameters of surgical access. To do this, draw two straight lines on the sagittal MR-section, denoting the points of their intersection with the curved line that visualizes the skin of the back. First line passes through the target point projected in the posterior-upper corner of the vertebral body of the underlying vertebral body relative to the target intervertebral disc, and the apex of its upper articular process. Second straight line is perpendicular to the surface of the table of the magnetic resonance tomograph conducted through the target point. On the semi-axial MR slice, a third straight line is drawn, passing through a point corresponding to the target point on the sagittal MR-section, and the middle of the upper articular process, which intersects the third straight line with a curved line, that visualizes the back skin, which is the point of the puncture. Point on the half-axial MR-section corresponding to the target point on the sagittal MR-section is defined as the end of the segment constructed from the median vertebral line at the posterior edge of its body from the side of the surgical approach, length of which is equal to the length of the perpendicular to the midline of the same vertebra, performed on the axial MR-section to the medial surface of the arch leg from the side of surgical access.

EFFECT: invention makes it possible to increase the precision of surgical access performed taking into account the individual anatomical features of the structure of the spine and the thickness of the array of paravertebral tissues by evaluating the aggregate of certain topographic parameters of the introduction of the endoscope.

1 cl, 15 dwg, 1 ex