The Study Of Static And Dynamic Characteristics In Idiopathic Scoliotic And Normal Spine

Idiopathic scoliosis is an unknown type of scoliosis,with the highest incidence among adolescents.It seriously affects the physical and mental health of teenagers.In the past,the study of vertebral column was mainly focused on the single segment and multiple segments of lumbar sacral vertebral segment,and some segments have limitations in the study of the spine.At present,the dynamics and static analysis of T1-S segments of patients with scoliosis are also lacking.Therefore,a typical and detailed lateral convex spine model is urgently needed to improve the understanding of the influence and mechanism of spinal cord injury in patients with scoliosis,and to improve the treatment and prevention of scoliosis.In this study,based on the CT images of human scoliosis and normal people.A more accurate and effective model of the thoracic lumbar sacral segment(T1-S)and a normal spinal(T1-S)model was established.Dynamic analysis and static analysis of the established spinal model were carried out.The dynamic analysis includes modal analysis and steadystate analysis,and the static analysis includes the analysis of the stress distribution of the lateral convex spine and the normal spinal column under different stances and the analysis of the orthotic force.1?The results of dynamic analysis showed that patients with scoliosis are more likely than normal to have resonance in the vertical direction,and the vertebral disc and intervertebral disc of the lateral convex segment of the scoliosis,in the vibration environment,were the weak links of the spine,and the lateral convex segment,in the vibration environment,had higher load accumulation and more vulnerable than the other segments,especially in the vicinity of the natural frequency of the spine.2?The analysis of stress distribution under different stances showed that the patients with scoliosis under the left elbow and upright posture,side convex stress concentrated thoracic spine side convex section and lumbosacral segment.Therefore,In the treatment of patients with scoliosis,the posture should be avoided to produce large and uneven concentrated stress in the lateral convex segment,to provide more effective treatment for patients with scoliosis.3?Analysis of orthopaedic force showed that the transverse orthotics of the spine and the rotational force are approximately proportional to the elongation of the spine and the rotational Angle of the spine,and the change of Cobb Angle is a function relation with transverse orthopaedic force.The orthopedics of the lower thoracic vertebrae and the lumbar vertebrae are much more difficult than the upper thoracic vertebra,and the correction of the lower thoracic and lumbar segments is much more difficult than that of the upper thoracic segment,which provides a theoretical basis for the oppression of the lateral convex spine.In summary,based on biomechanics and finite element theory,this paper combines modern CT imaging technology with reverse engineering technology to establish the precise finite element model of the spine,and used the finite element software to analyze the biodynamics and statics.This paper provides a beneficial reference for the protection and rehabilitation treatment of patients and for clinical pathological studies.It also offers a significant reference for the development of medical equipment and the design of related products for scoliotic patients.