全腰つい(椎)の前方屈曲シミュレーション

概要

論文の詳細を見る
The lumbar spine is an important region of the spine, often involved in trauma, degeneration and disease. A clarification of the mechanical causes of low-back pain requres a knowledge of the states of stress and strain throughout the lumbo-sacral spine. Since a purely experimental approach cannnot provide this information, analytical model studies to supplement measurements are neccessary. In this paper, computational simulations of whole human lumbar spine including the sacrum under flexion were carried out using the finite element method. The finite element models proposed are based on in-plane stress analysis considering the thickness effect of different material layers in an element. As a result, in flexion at constant moment, the stress distributions of five intervertebral discs in the lumbar spine are almost the same. Oh the other hand, at shear force, the stresses of discs in the lower region are higher.
一般社団法人日本機械学会の論文
1990-08-25