TOPOGRAPHY OF THE LONG POSTERIOR SACROILIAC LIGAMENTS: FEATURES OF POSITION RELATIVE TO THE LINES OF SPINOUS PROCESS

Abstract

Objective: to develop a landmark, suitable for fast image acquisition of the long sacroiliac ligament in the longitudinal section. Material of research. We assessed the position of the longitudinal axis of the long posterior sacroiliac ligament and the line of spinous processes (determined by the angle formed by the mentioned lines) on MRI scans of 48 patients aged 27 to 80: 23 men (the average age was 62.3 ± 8.5) and 24 women (the average age of 48.4 ± 11.7) and 11 corpses: 6 males (mean age 63,0 ± 4,6 years) and 5 women (mean age 63,6 ± 2,2 years) was evaluated. Results. We received the data that make it possible to get the image of the long posterior sacroiliac ligament in the longitudinal section quickly (using the proximal posterior superior iliac spine as a landmark and orienting the scanning plane of the sensor at an angle of 11.4 ± 2.2 according to the line of the spinous processes).