Morphometric analysis and identification of characteristic features in sacra bearing accessory articulations with L5 vertebrae

The Spine Journal : Official Journal of the North American Spine Society
Niladri Kumar Mahato

Abstract

Occurrence of transitional vertebrae at the lumbosacral junction, especially accessory lumbosacral articulations (partial sacralization of the L5 vertebrae), is not uncommon. These transitional states are frequently associated with low back pain situations requiring surgical intervention. The study aimed to investigate the presence of distinct morphological features and structural peculiarities associated with these sacra. The features related to sacra bearing L5-S1 transitions might be significantly different from those of the normal sacra. This study tries to understand whether accessory L5-S1 articulations demonstrate altered mechanisms of load transfer as a result of structural changes at the L5-S1 junction. Morphometric measurements of several linear dimensions and articular areas were obtained from 332 sacra. Thirty sacra demonstrated unilateral accessory facets on their ala. Twelve sacra showed bilateral accessory lumbosacral articulations. Indices were calculated based on the linear dimensions and on the surface areas of the bones to detect proportional contributions of the dimensions and surface areas to the overall structure of all the sacra. All the parameters obtained from the transitional sacra were compared with t...Continue Reading

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Citations

Dec 4, 2012·Journal of Chiropractic Medicine·Jeffrey M Muir
Mar 26, 2016·Surgical and Radiologic Anatomy : SRA·Niladri Kumar Mahato
Jun 17, 2021·Journal of Orthopaedic Trauma·Mitchel R ObeyAnna N Miller

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