考虑人体躲避效应的脊柱侧弯矫形力生物力学分析

doi:10.1007/s12204-023-2620-0

J Shanghai Jiaotong Univ Sci ›› 2025, Vol. 30 ›› Issue (1): 187-196.doi: 10.1007/s12204-023-2620-0

考虑人体躲避效应的脊柱侧弯矫形力生物力学分析

朱晔1，任东1，张爽2，曹倩3

（1. 大连交通大学机械工程学院，辽宁大连116028；2. 大连市中心医院骨科，辽宁大连116033；3. 大连医科大学第二附属医院放射科，辽宁大连116027)

收稿日期:2022-06-30 接受日期:2022-10-06 出版日期:2025-01-28 发布日期:2025-01-28

Biomechanical Analysis of Scoliosis Orthopedic Force Loading with Human Avoidance Effect

ZHU Ye¹ (朱晔), REN Dong¹ (任东),ZHANG Shuang^2* (张爽), CAO Qian^3* (曹倩)

(1. School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning, China; 2. Department of orthopedics, Dalian Municipal Central Hospital, Dalian 116033, Liaoning, China; 3. Department of Radiology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning, China)

Received:2022-06-30 Accepted:2022-10-06 Online:2025-01-28 Published:2025-01-28

摘要/Abstract

摘要： 由于缺少人体躲避分析，矫形器在矫形时不能准确施加矫形力，致使矫形效果不佳。因此研究人体主动躲避能力与施力之间的关系，从而实现矫形力的精准加载。首先基于CT数据建立高精度的侧弯模型，分析矫形力与Cobb角之间的关系；然后选取9名受试者按体重指数分组进行躲避能力试验，拟合出不同群体的躲避函数；最后通过躲避函数修正矫形力的施加。结果显示：偏胖群体的躲避能力最大，其次是标准群体、偏瘦群体；数值模拟分析矫形力60 N时，Cobb角由33.77°减少为20°，由躲避函数可得标准群体在50 N时躲避能力为20.28%，主动躲避掉10.14 N，因此施加50 N时，实际产生了60.14 N，能够达到数值模拟分析60 N时的矫形效果。躲避效应可将人体主动因素考虑到矫形中，实现矫形力更加准确的施加，为临床医师在矫形中提供数据参考。

关键词: 脊柱侧弯, 生物力学, 人类主动回避能力, 体重指数

Abstract: Due to the lack of human avoidance analysis, the orthosis cannot accurately apply orthopedic force during orthopedic, resulting in poor orthopedic effect. Therefore, the relationship between the human body’s active avoidance ability and force application is studied to achieve accurate loading of orthopedic force. First, a high-precision scoliosis model was established based on computed tomography data, and the relationship between orthopedic force and Cobb angle was analyzed. Then 9 subjects were selected for avoidance ability test grouped by body mass index calculation, and the avoidance function of different groups was fitted. The avoidance function corrected the application of orthopedic forces. The results show that the optimal correction force calculated by the finite element method was 60 N. The obese group had the largest avoidance ability, followed by the standard group and the lean group. When the orthopedic force was 60 N, the Cobb angle was reduced from 33.77◦ to 20◦, the avoidance ability of the standard group at 50 N obtained from the avoidance function was 20.28% and 10.14 N was actively avoided. Therefore, when 50 N was applied, 60.14 N was actually generated, which can achieve the orthopedic effect of 60 N numerical simulation analysis. The avoidance effect can take the active factors of the human body into consideration in the orthopedic process, so as to achieve a more accurate application of orthopedic force, and provide data reference for clinicians in the orthopedic process.

中图分类号:

R682.3

朱晔1, 任东1, 张爽2, 曹倩3. 考虑人体躲避效应的脊柱侧弯矫形力生物力学分析[J]. J Shanghai Jiaotong Univ Sci, 2025, 30(1): 187-196.

ZHU Ye¹ (朱晔), REN Dong¹ (任东), ZHANG Shuang² (张爽), CAO Qian³ (曹倩).

Biomechanical Analysis of Scoliosis Orthopedic Force Loading with Human Avoidance Effect

[J]. J Shanghai Jiaotong Univ Sci, 2025, 30(1): 187-196.

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考虑人体躲避效应的脊柱侧弯矫形力生物力学分析

Biomechanical Analysis of Scoliosis Orthopedic Force Loading with Human Avoidance Effect

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