Evaluation of Stability and Reliability of Motorized Unilateral External Fixator, Designed and Simulated using Finite Element Method to Treat Bone Fractures and Bone Loss

Journal of Modern Processes in Manufacturing and Production

مقاله 2، دوره 11، شماره 4، بهمن 2022، صفحه 5-21   

نوع مقاله: Research Paper

نویسندگان

Alireza Bahramkia¹؛ Mehran Fakhraie^{* 1}؛ Salar Khajehpour^{1، 2}؛ Seyed Mohammad Tahami^{1، 3}؛ Raheb Gholami¹

¹Department of Mechanical Engineering, Lahijan Branch, Islamic Azad University, Lahijan, Iran

²Shiraz University of Medical Sciences

³Assistant professor of Orthopedics Bone and Joint Disease Research Center, Shiraz University of Medical Sciences

چکیده

Today, it is common to align broken bones using external bone fixators; ease of installation and adjustability are among the advantages of unilateral external bone fixators compared to circular and horseshoe models. The present study aimed to ensure the stability and strength of the motorized unilateral external bone fixator, equipped with four motors designed in SolidWorks software. The device was simulated and analyzed using the finite element method in Ansys software. The results were as follows: Simulation of compressive, bending, and torsional forces and reliability evaluation using the finite element method in each simulated experiment. The designed device has the necessary stability, rigidity, and desirable reliability to fix the long broken bones in place, with the possibility of displacing the bone when having a lost part. Precise bone displacement is possible since the device has four independent motorized units based on the patient's needs and the instructions of a specialist to rebuild bones.

کلیدواژه‌ها

Unilateral External Bone Fixator؛ Bone Fracture؛ Bone Loss؛ Orthopedics؛ Finite Element Method

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