| 距腓前韧带影响踝关节不稳的生物力学研究 |
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| 引用本文： | 彭琳晶,王心桐,干耀恺,李翊铭,孔康麟,姚怡飞. 距腓前韧带影响踝关节不稳的生物力学研究[J]. 医用生物力学, 2023, 38(4): 736-741 |
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| 作者姓名： | 彭琳晶 王心桐 干耀恺 李翊铭 孔康麟 姚怡飞 |
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| 作者单位： | 上海交通大学 生物医学工程学院;上海交通大学医学院附属第九人民医院 骨科;美国佐治亚理工学院 机械工程系 |
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| 基金项目： | 上海浦江人才计划项目(19PJ1406400),军队基础加强计划重点基础研究项目(2020-JCJQ-ZD-264),上海交通大学数字医学教育部工程研究中心医工交叉种子基金项目(20210401) |
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| 摘 要： | 目的 探究踝关节不稳中距腓前韧带(anterior talofibular ligament, ATFL)的厚度与弹性模量对踝关节稳定性的影响,为踝关节不稳患者的诊断提供参考依据。 方法 建立踝关节三维有限元模型,改变 ATFL 的厚度与弹性模量,计算踝关节前后向刚度(ankle anteroposterior stiffness, AAS),并作为量化指标评估踝关节稳定性。 结果 ATFL厚度在 0. 78~ 2. 31 mm 范围内引起 AAS 的大幅度变化,且两者关系呈 S 形曲线;ATFL 弹性模量在 60 ~ 400 MPa 变化范围,AAS 随韧带弹性模量增加快速上升。 结论 ATFL 厚度与弹性模量均会影响踝关节的稳定性。
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| 关 键 词： | 踝关节不稳 距腓前韧带 踝关节前后向刚度 |
| 收稿时间： | 2022-07-07 |
| 修稿时间： | 2022-08-15 |
Effects of Anterior Talofibular Ligament on Ankle Instability: A Biomechanical Study |
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| PENG Linjing,WANG Xintong,GAN Yaok,LI Yiming,KONG Kanglin,YAO Yife. Effects of Anterior Talofibular Ligament on Ankle Instability: A Biomechanical Study[J]. Journal of Medical Biomechanics, 2023, 38(4): 736-741 |
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| Authors: | PENG Linjing WANG Xintong GAN Yaok LI Yiming KONG Kanglin YAO Yife |
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| Affiliation: | School of Biomedical Engineering, Shanghai Jiao Tong University;Departmentof Orthopedics, Shanghai Ninth People '' s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine;Department of Mechanical Engineering, Georgia Institute of Technology |
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| Abstract: | Objective To investigate the effect of thickness and elastic modulus of anterior talofibular ligament (ATFL) on ankle stability, and provide references for ankle instability diagnosis. Methods The threedimensional (3D) model of ankle joint was established. By changing the thickness and elastic modulus of ATFL, the ankle anteroposterior stiffness (AAS) was calculated and used as a quantitative indicator to assess ankle stability. Results AAS changed significantly when the thickness of ATFL was in the range of 0. 78 mm to 2. 31 mm, and such relationship was in an S-shaped curve. AAS significantly increased with the elastic modulus of ligament increasing, when the elastic modulus of ATFL was in the range of 60 MPa to 400 MPa. Conclusions Both the thickness and elastic modulus of ATFL will influence the stability of ankle joint. |
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| Keywords: | ankle instability anterior talofibular ligament (ATFL) ankle anteroposterior stiffness (AAS) |
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