全膝关节置换术制约因素的有限元分析和机械评估

IF 1.9 4区 工程技术 Q2 Engineering
Kwan-Su Kang, Tae-Gon Jung
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引用次数: 0

摘要

TKR 的约束水平对于确保产品性能以防止膝关节脱位至关重要。计算机建模与仿真(CM&S)技术具有缩短测试时间、降低测试成本等优点,因此在医疗器械行业得到了广泛应用。然而,目前还缺乏根据股骨组件的尺寸和屈曲角度对 TKR 的约束水平进行研究。本研究采用有限元分析方法,根据 TKR 产品的尺寸和屈曲角度测试了 AP 牵引、ML 剪切和旋转松弛的约束水平。使用三维扫描仪构建了一个 TKR 模型,并通过 AP 拔模测试建立了一个机械测试误差率为 2.49% 和 3.00% 的有限元模型。在 AP 绘图中,随着 TKR 尺寸的减小,约束水平增加了约 3.6%,旋转松弛度也增加了约 1.3%。在所有测试中,随着股骨组件弯曲角度的增加,约束水平也随之增加。我们发现 TKR 的曲率和接触面积会影响约束水平。通过这项研究,我们相信 CM&S 技术可广泛用于评估医疗器械的独特性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Finite Element Analysis and Mechanical Assessment for the Constraint of Total Knee Replacement

Finite Element Analysis and Mechanical Assessment for the Constraint of Total Knee Replacement

The constraint level of TKR is essential for ensuring product performance to prevent knee joint dislocation. Computer modeling and simulation (CM&S) technology is widely used in the medical device industry due to its advantages such as reducing testing time and costs. However, there is a lack of research on the constraint level of TKR according to the size and flexion angle of the femoral component. In this study, the constraint levels of AP draw, ML shear, and rotary laxity were tested according to the size and flexion angle of TKR products using finite element analysis. A TKR model was constructed using a 3D scanner, and a finite element model with mechanical testing and error rates of 2.49% and 3.00% was developed through AP draw testing. In AP draw, as the size of TKR decreases, the constraint level increases by about 3.6%, and rotary laxity also increases by about 1.3%. In all tests, the constraint level increased as the bending angle of the femoral component increased. We found that the curvature and contact area of a TKR influenced the constraint level. Through this study, it is believed that CM&S technolaogy can be widely used in evaluating the unique performance of medical devices.

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来源期刊
CiteScore
4.10
自引率
10.50%
发文量
115
审稿时长
3-6 weeks
期刊介绍: The International Journal of Precision Engineering and Manufacturing accepts original contributions on all aspects of precision engineering and manufacturing. The journal specific focus areas include, but are not limited to: - Precision Machining Processes - Manufacturing Systems - Robotics and Automation - Machine Tools - Design and Materials - Biomechanical Engineering - Nano/Micro Technology - Rapid Prototyping and Manufacturing - Measurements and Control Surveys and reviews will also be planned in consultation with the Editorial Board.
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