摘要
背景:四肢骨折夹板固定是常用的治疗方法,但存在夹板制作无个体化差异,夹板易松脱,患者不能自我调整等弊端。目的:探索数字化夹板的设计方法及有限元分析。方法:通过前臂CT扫描,体表数据提取,逆向建模,修饰,制作出数字化夹板模型,并建立前臂及夹板有限元模型,赋予相应的材料属性及力学加载,通过有限元分析计算肢体总体、骨骼、软组织及夹板最大应力及位移。结果与结论:数字化夹板具有较好的肢体贴服性,对皮肤的压力比较均衡,固定过程中在允许骨折微动的同时较好保持了夹板系统的稳定性。结果表明,通过数字化建模技术可以设计出肢体贴服性强的夹板,并且显示了较好的骨折固定及力学性能。
BACKGROUND： Splint fixation was a common treatment for limb fracture, but there were some limitations, such as lack of individual difference, easy to lose and being unable to self-adjusting. OBJECTIVE： To explore the design method of digital splint and related finite element analysis. METHODS： Forearms were scanned with CT; periphery parameters were extracted, followed by reverse modeling and modifying. The digital splint models were constructed. Material attribute and mechanical loading were conducted. The limb length, maximum stress and displacement of the bone, soft tissue and splint were calculated by finite element analysis.RESULTS AND CONCLUSION： The digital splint has favorable tight attaching and balanced stress to skin, and which keeps well stability for the micro-motion fracture ends. Our study indicated that better tight attaching splint could be designed by digital modeling technology. Favorable fracture fixation and mechanical property could be also achieved.
出处
《中国组织工程研究》
CAS
北大核心
2017年第7期1052-1056,共5页
Chinese Journal of Tissue Engineering Research
基金
广州中医药大学第一附属医院创新强院工程:岭南特色诊疗技艺应用与推广(2015JY02)
挖掘与整理传统中医项目(2016ZY04)
国家中医药管理局2013年全国名老中医药专家传承工作室建设项目---陈基长全国名老中医药专家传承工作室~~
