Рентгеноанатомические особенности и механизмы эмбрионального развития люмбализации первого крестцового позвонка

Abstract

Abstract Background: various variants and developmental anomalies of the lumbosacral spine that cause the vertebral-sacral vertebrae are often identified during diagnosis as an accidental finding due to the availability and widespread use of modern imaging methods. Material and methods: the material for the study was 24 X-ray images of the lumbosacral spine of persons of both sexes aged from 27 to 69 years, performed in frontal and lateral projections. X-ray anatomical analysis was performed by the method of fluoroscopic examination, the results obtained were described according to the classification of transitional vertebrae according to A.E. Casellvi. Results: eight radiographs revealed a shadow of an additional vertebra in the lumbar spine, the height of which was reduced in 92.4% of cases, and the spinous process was shortened in 87.6% of cases. On 16 images, onesided lumbalization was determined, a one-sided visible gap in the upper sacrum was revealed. Conclusions: in the course of the study, an X-ray anatomical analysis of the transitional lumbo-sacral vertebra with determination of the type according to the Casellvi’s classification of transitional vertebrae. In 33.4% of cases, type I with complete lumbalization was detected, in 66.6% of cases, incomplete lumbalization was revealed, characterized by various anatomical variants, classified in types II and III.