新型外固定护具治疗锁骨骨折有限元分析  

Finite Element Analysis of New External Fixation Protector in Treating Clavicular Fracture

作　　者：罗斌[1] 黄思聪 马俊昌 许树柴[1] 刘军[1] 潘建科[1] LUO Bin;HUANG Sicong;MA Junchang;XU Shuchai;LIU Jun;PAN Jianke

机构地区：[1]广东省中医院骨科,广东广州510105 [2]佛山市第二人民医院骨一科,广东佛山528000 [3]东莞康华医院创伤骨科,广东东莞523080

出　　处：《新中医》2021年第21期115-120,共6页New Chinese Medicine

基　　金：广东省中医药局项目(20181127)。

摘　　要：目的:探讨新型外固定护具的治疗优势及有限元研究。方法:利用肩关节三维CT扫描的原始图像,使用Mimics19.0、Geomagic Studio2017及Solid Works2017等软件,通过蒙版、网格划分、修饰等步骤,分别建立肩关节及锁骨的三维有限元模型。根据新型外固定护具及改良的"8"字绷带+T型夹板治疗锁骨骨折的力学作用特点,给予属性赋值、约束边界及力学加载,经过ANSYS19.0有限元运算后对比2种治疗方式的最大应力及位移。结果:新型外固定护具对肩关节整体、锁骨的最大应力分别为10.1560 Mpa、7.7759 Mpa,大于改良的"8"字绷带+T型夹板固定的4.0288 Mpa、3.1728 Mpa;新型外固定护具下锁骨的最大位移为0.105640 mm,大于改良的"8"字绷带+T型夹板的0.040052 mm。结论:新型外固定护具综合作用力更大,复位固定骨折端的能力优于改良的"8"字绷带+T型夹板。Objective:To explore the therapeutic advantages and finite element study of a new external fixation protector.Methods:Using the original images of three-dimensional CT scanning of shoulder joint,the three-dimensional finite element models of shoulder joint and clavicle were established by using Mimics19.0,Geomagic Studio2017 and Solid Works2017 through the steps of mask,mesh generation and modification.According to the mechanical action characteristics of new external fixation protector and improved"8"bandage+T-shaped splint in the treatment of clavicular fracture,attribute assignment,constraint boundary and mechanical loading were given.After ANSYS19.0 finite element calculation,the maximum stress and displacement of the two treatment methods were compared.Results:The maximum stresses of the new external fixation protector on the whole shoulder joint and clavicle were 10.1560 Mpa and 7.7759 Mpa respectively,which were greater than 4.0288 Mpa and 3.1728 Mpa fixed with improved"8"bandage and T-shaped splint.The maximum displacement of clavicle under the new external fixation protector is 0.105640 mm,which is greater than 0.040052 mm of the improved"8"bandage+T-shaped splint.Conclusion:The comprehensive force of the new external fixation protector is greater,and the ability of reduction and fixation of fracture end is better than the improved"8"bandage+T-shaped splint.

关 键 词：锁骨骨折 新型外固定护具 有限元分析 T型夹板 “8”字绷带 

分 类 号：R683.41[医药卫生—骨科学]