Sanders Ⅱ B型跟骨骨折内固定治疗的有限元分析
Finite element analysis of internal fixation treatment for Sanders type Ⅱ B calcaneal fracture
郑昊妍 1丰波 2代光明 2王永军 2李晓玫 3王建东3
作者信息
- 1. 内蒙古包钢医院(内蒙古医科大学第三附属医院)手足踝外科,内蒙古包头 014010;内蒙古医科大学,呼和浩特 010110
- 2. 内蒙古包钢医院(内蒙古医科大学第三附属医院)手足踝外科,内蒙古包头 014010
- 3. 内蒙古医科大学,呼和浩特 010110
- 折叠
摘要
目的:通过有限元分析比较Sanders Ⅱ B型跟骨骨折5种内固定方式的生物力学稳定性.方法:选择1名健康成年男性为志愿者,通过Mimics 21.1、Geomagic wrap 2021等软件建立Sanders Ⅱ B型跟骨骨折模型.分别采用跟骨外侧解剖接骨板(LAP)、钉中钉系统(NIS)、结合型跟骨解剖接骨板(CIP)、前突跟骨骨板+钉中钉系统(CMP+NIS)、跗骨窦螺钉+钉中钉系统(STS+NIS)共5种内固定方式进行跟骨骨折的处理,并进行生物力学稳定性的比较.结果:①内固定最大等效应力:LAP>NIS>STS+NIS>CMP+NIS>CIP;②骨折块位移:CIP<LAP<CMP+NIS<1 mm<STS+NIS<NIS;③骨折块最大等效应力:STS+NIS>NIS>LAP>CMP+NIS>CIP.结论:LAP、CIP、CMP+NIS进行Sanders Ⅱ B型跟骨骨折内固定的生物力学稳定性较为理想,推荐临床应用.
Abstract
Objective:To compare the biomechanical stability of five internal fixation methods for Sanders type Ⅱ B calcaneal fracture through finite element analysis.Methods:A healthy adult male volunteer was recruited to create a Sanders type Ⅱ B calcaneal fracture model via software such as Mimics 21.1 and Geomagic wrap 2021.Five internal fixation methods were simulated to treat the calcaneal fracture,including the lateral anatomical plate of the calcaneus(LAP),nail-in-nail internal fixation system(NIS),calcaneal invasive plate via a sinus tarsi approach(CIP),calcaneal minimally plate+nail-in-nail internal fixation system(CMP+NIS),and sustentaculum tali screw+nail-in-nail internal fixation system(STS+NIS).The biomechanical stability of these methods was compared.Results:①Internal fixation stress:LAP>NIS>STS+NIS>CMP+NIS>CIP;②Bone fragment displacement:CIP<LAP<CMP+NIS<1 mm<STS+NIS<NIS;③Bone fragment stress:STS+NIS>NIS>LAP>CMP+NIS>CIP.Conclusions:LAP,CIP,and CMP+NIS methods provide relatively ideal biomechanical stability for the internal fixation of calcaneal fractures and are recommended for clinical application.
关键词
Sanders/Ⅱ/B型跟骨骨折/内固定/三维有限元Key words
Sanders Type Ⅱ B Calcaneal Fracture/Internal Fixation Method/Three-Dimensional Finite Element引用本文复制引用
基金项目
包头市卫生健康科技计划项目(wsjkkj092)
出版年
2024
NETL
NSTL
万方数据