BASIC PARAMETERS OF PERCUTANEOUS ENDOSCOPIC TRANSFORAMINAL APPROACH USING TESSYS
INTRODUCTION. Transforaminal percutaneous endoscopic lumbar discectomy is effective modern method of minimally invasive surgical treatment of lumbar disc herniations. In recent years, this technique is widely used in our country. However, the literature is still marked shortage of information about the main morphometric parameters of percutaneous endoscopic transforaminal approach. OBJECTIVE. Determination of the basic parameters of percutaneous endoscopic transforaminal approach to the lumbar intervertebral disc, using TESSYS. MATERIAL AND METHODS. The study was performed by CT lumbosacral spine 60 young people (30 men, 30 women) without the expressed pathological changes. The average age of the patients was 37,1 ± 3,9 years. Study the following characteristics: distance from the midline of the lumbar to the puncture site; the depth of the surgical wound; wound surface area; the angles of inclination of the operative action axis in the horizontal, sagittal and frontal planes; the angle of operation action. RESULTS. The distance from the midline of the lumbar to the puncture site, the surgical wound area and depth of the wound surface, increases in caudal direction. The angles of inclination of the operative action axis in the sagittal and frontal planes, as well as the angle of operation action decreases in the caudal direction. The size of the angle of inclination of the operative action axis in the horizontal plane increase in the caudal direction. For the majority of the studied characteristic traits mild and moderate variability (coefficient of variation CONCLUSIONS. The described methods for measuring basic parameters of endoscopic transforaminal approach, as well as obtained morphometric data can be used in the planning and implementation of percutaneous endoscopic transforaminal lumbar discectomy. Knowledge of the basic parameters of this access allows more accurate assessment of its capabilities and limitations.