DefinePK

Abstract

Sacralization is a type of transitional abnormally observed at the lumbosacral junction. It involves fully bilateral fusion in between the fifth lumbar vertebra to first sacral vertebra (L5 S1 Transverse vertebra). Sacralization of the L5 vertebra is more commonly observed in people comparison to lumbarization of the first sacral vertebra segment, this can be present in human being from birth. The aim of the present work is to study the pressure distributions in sacralisation. For that cadaveric bones of sacralisation are used to measure geometrical data for modeling and to construct a better mesh representation for sacralization, the meshed model was analyzed under compressive load to understand the load concentration on the sacralization.It is observed that the pressure distributions of the ventral - lateral and dorsal-medial sides of sacrum are slight higher when compare to ventral and dorsal sides. This stresses were mostly concentrating at the sacral ala and the s1 pedicle region. This concentration may lead to fracture in ventral lateral region of sacralization.