有限元法预测支具治疗青少年特发性脊柱侧凸的效果

被引:16
作者
唐明星
张宏其
王永福
赵迪
刘少华
陈凌强
郭超峰
王昱翔
机构
[1] 中南大学湘雅医院脊柱外科,湘雅脊柱外科中心
关键词
青少年; 脊柱侧凸; 支架(骨科); 有限元分析;
D O I
暂无
中图分类号
R682 [骨的畸形];
学科分类号
100220 [骨科学];
摘要
目的利用有限元方法分析支具治疗后椎间盘凸侧和凹侧椎间盘应力分布的变化,预测支具治疗效果。方法基于已建立的Lenke1A型特发性脊柱侧凸模型,利用有限元方法分析支具治疗后主胸弯椎间盘凸侧和凹侧椎间盘应力分布的变化,并应用公式计算1年后椎体高度增加值和椎体楔形病变增加的角度值。结果随着横向矫形力的增加,T6~11椎体的楔形病变逐渐减小,预计1年后总的椎体楔形病变也呈减小趋势。其中在加载100N矫形力后,主胸弯椎体楔形病变角度总和被逆转为负数。结论利用有限元方法研究脊柱侧凸椎间盘凸侧和凹侧的应力,并应用凸侧和凹侧应力值预测支具治疗的效果,为预测支具治疗效果提供了一种新的方法 。
引用
收藏
页码:108 / 113
页数:6
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