DefinePK

Abstract

Biomechanics helps us to study the mechanical behavior of the musculoskeletal system and it provides direction for the clinician to develop the treatment protocol. The objective of this study is to develop a finite element model of the LSTV (lumbosacral transitional vertebra) lumbar spine (L4 vertebrae and sacralisation model). In this study, cadaveric bones are used to measure geometrical data of the human spine vertebrae and sacralisation. Based on the measured data of the vertebra figuration, a detailed three-dimensional linear finite element model of the lumbosacral joint L4-S1 of the spine was created and investigated the biomechanical properties of the lumbosacral junction. The finite element model was finely developed for L4/S1 (LSTV) model and validated according to available experimental results and finite element results of L5/S1. The load (stress) distributions in that region is studied for defected model, along with the range of motion for all physiological motions namely flexion, extension, lateral bending and axial rotation for lumbosacral transitional vertebrae . The results of L4-Sacralisation conclude that the physiological motions will be reduced when compared with the intact model.