Sonography of the Sacrotuberous Ligaments: Landmarks for Obtaining an Optimal Longitudinal Section

Abstract

Objective: to develop a landmark suitable for fast image acquisition of the sacroiliac ligament in the longitudinal section. Material and methods. The position of the longitudinal axis of the sacro-ligamentous ligaments relative to the line of the spinous processes on the sonograms of 36 patients (the age range was 27-80) and 33 cadavers (the age range was 50-75) has been determined. Results. The obtained data allow to trace the image of the sacrotuberous ligament in the longitudinal section quickly (using the ischial tuberosity as a landmark and orienting the scanning plane of the sensor at an angle of 19-25° according to the line of the spinous processes).