Finite element method-based study for spinal vibration characteristics of the scoliosis and kyphosis lumbar spine to whole-body vibration under a compressive follower preload.

IF 1.6 4区医学 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-08-01 Epub Date: 2024-03-26 DOI:10.1080/10255842.2024.2333925

Pengju Li, Rongchang Fu, Xiaozheng Yang, Kun Wang, Huiran Chen

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引用次数: 0

Abstract

Purpose: To analyze the dynamic response of the lumbosacral vertebrae structure of a scoliosis spine and a kyphosis spine under whole-body vibration.

Methods: Typical Lenke4 (kyphosis) and Lenke3 (scoliosis) spinal columns were used as research objects. A finite element model of the lumbosacral vertebrae segment was established and validated based on CT scanning images. Modal, harmonic response, and transient dynamic analyses were performed on the lumbar-sacral scoliosis model using the finite element software abaqus.

Results: The first four resonance frequencies of kyphosis spine extracted from modal analysis were 0.86, 1.45, 8.51, and 55.71 Hz. The first four resonance frequencies of scoliosis spine extracted from modal analysis were 0.76, 1.45, 10.51, and 63.82 Hz. The scoliosis spine had the maximum resonance amplitude in the transverse direction, while the kyphosis spine had the maximum resonance amplitude in the anteroposterior direction. The dynamic response in transient analysis exhibited periodic response over time at all levels.

Conclusion: The scoliosis and kyphosis deformity of the spine significantly complicates the vibration response in the scoliosis and kyphosis areas at the top of the spine. Scoliosis and kyphosis patients are more likely to experience vibrational spinal diseases than healthy people. Besides, applying vertical cyclic loads on a malformed spine may cause further rotation of scoliosis and kyphosis deformities.

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基于有限元方法的脊柱振动特性研究：在压缩随动器预载下，脊柱侧弯和后凸腰椎对全身振动的影响。

目的：分析脊柱侧弯和后凸脊柱的腰骶椎结构在全身振动下的动态响应：方法：以典型的 Lenke4（脊柱后凸）和 Lenke3（脊柱侧弯）脊柱为研究对象。根据 CT 扫描图像建立并验证了腰骶椎段的有限元模型。使用有限元软件 abaqus 对腰骶部脊柱侧凸模型进行了模态、谐波响应和瞬态动力学分析：从模态分析中提取的脊柱侧弯的前四个共振频率分别为 0.86、1.45、8.51 和 55.71 Hz。从模态分析中提取的脊柱侧弯的前四个共振频率分别为 0.76、1.45、10.51 和 63.82 Hz。脊柱侧弯的最大共振振幅在横向，而脊柱后凸的最大共振振幅在前后方向。瞬态分析中的动态响应在所有级别上都表现出随时间变化的周期性响应：结论：脊柱侧弯和后凸畸形使脊柱顶部侧弯和后凸区域的振动响应变得非常复杂。与健康人相比，脊柱侧弯和后凸患者更容易出现脊柱振动疾病。此外，对畸形脊柱施加垂直循环载荷可能会导致脊柱侧弯和后凸畸形进一步旋转。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computer Methods in Biomechanics and Biomedical Engineering 工程技术-工程：生物医学

CiteScore

4.10

自引率

6.20%

发文量

179

审稿时长

4-8 weeks

期刊介绍： The primary aims of Computer Methods in Biomechanics and Biomedical Engineering are to provide a means of communicating the advances being made in the areas of biomechanics and biomedical engineering and to stimulate interest in the continually emerging computer based technologies which are being applied in these multidisciplinary subjects. Computer Methods in Biomechanics and Biomedical Engineering will also provide a focus for the importance of integrating the disciplines of engineering with medical technology and clinical expertise. Such integration will have a major impact on health care in the future.