Biomechanical Shape Analysis on Osteoporotic Lumbar Vertebra Injected by Bone Cement

摘要

We investigated the stress and growth deformation behaviors in the osteoporotic lumbar vertebra injected by bone cement using the growth strain method. The growth criterion parameters of lumbar vertebras were determined by applying two-dimensional finite element method. Next, growth-strain analysis of lumbar vertebras was performed under the growth criterion parameters of each lumbar vertebra. Our findings showed that the strain energy density of lumbar vertebras changed according to the bone loss conditions.