Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle

The program of treatment and rehabilitation of chronic ankle instability is different according to the impairment degree of lateral ligament of the ankle. The diagnosis methods of lateral ligament's injury are magnetic resonance imaging (MRI) and arthroscopy, which are either invasive or time-c...

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Main Authors: Dian Wang, Ping Cai
Format: Article
Language:English
Published: Tsinghua University Press 2019-09-01
Series:Nano Biomedicine and Engineering
Subjects:
Online Access:https://www.sciopen.com/article/10.5101/nbe.v11i3.p290-296
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author Dian Wang
Ping Cai
author_facet Dian Wang
Ping Cai
author_sort Dian Wang
collection DOAJ
description The program of treatment and rehabilitation of chronic ankle instability is different according to the impairment degree of lateral ligament of the ankle. The diagnosis methods of lateral ligament's injury are magnetic resonance imaging (MRI) and arthroscopy, which are either invasive or time-consuming. This study aims to analyze the mapping relation between lateral ligaments' injury and center of pressure (COP) position shift via finite element analysis in order to explore a method that can diagnose lateral ligaments' injury. Two typical finite element method (FEM) bone models of heel-strike and toes-off phase are built according to the gait metrics. The lateral ligament is simulated by adding the spring to the model in the anatomical position and the injury of lateral ligament is simulated by reducing the stiffness of the spring. The contact pressure between the foot and support plate and COP coordinates are analyzed. The displacement of anterolateral shift of COP coordinates is mapped to the injury degree of lateral ligament. This study provides feasibility to diagnose lateral ligament injury by plantar pressure distribution.
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spelling doaj.art-db1fb9ace7824768a2a175c04ef334af2023-09-26T11:03:17ZengTsinghua University PressNano Biomedicine and Engineering2150-55782019-09-0111329029610.5101/nbe.v11i3.p290-296Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the AnkleDian Wang0Ping Cai1School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaThe program of treatment and rehabilitation of chronic ankle instability is different according to the impairment degree of lateral ligament of the ankle. The diagnosis methods of lateral ligament's injury are magnetic resonance imaging (MRI) and arthroscopy, which are either invasive or time-consuming. This study aims to analyze the mapping relation between lateral ligaments' injury and center of pressure (COP) position shift via finite element analysis in order to explore a method that can diagnose lateral ligaments' injury. Two typical finite element method (FEM) bone models of heel-strike and toes-off phase are built according to the gait metrics. The lateral ligament is simulated by adding the spring to the model in the anatomical position and the injury of lateral ligament is simulated by reducing the stiffness of the spring. The contact pressure between the foot and support plate and COP coordinates are analyzed. The displacement of anterolateral shift of COP coordinates is mapped to the injury degree of lateral ligament. This study provides feasibility to diagnose lateral ligament injury by plantar pressure distribution.https://www.sciopen.com/article/10.5101/nbe.v11i3.p290-296mechanical ankle instabilitylateral ligament injuryfinite element methodcenter of pressure
spellingShingle Dian Wang
Ping Cai
Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
Nano Biomedicine and Engineering
mechanical ankle instability
lateral ligament injury
finite element method
center of pressure
title Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
title_full Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
title_fullStr Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
title_full_unstemmed Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
title_short Finite Element Analysis of the Expression of Plantar Pressure Distribution in the Injury of the Lateral Ligament of the Ankle
title_sort finite element analysis of the expression of plantar pressure distribution in the injury of the lateral ligament of the ankle
topic mechanical ankle instability
lateral ligament injury
finite element method
center of pressure
url https://www.sciopen.com/article/10.5101/nbe.v11i3.p290-296
work_keys_str_mv AT dianwang finiteelementanalysisoftheexpressionofplantarpressuredistributionintheinjuryofthelateralligamentoftheankle
AT pingcai finiteelementanalysisoftheexpressionofplantarpressuredistributionintheinjuryofthelateralligamentoftheankle