A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis
Objective:Combined with a static finite element model of knee joint and the gait data, a dynamic finite element (FE) model was established to simulate the stress change within the knee joint during level walking, aiming to provide an objective outcome measurement from biomechanical perspectives.Meth...
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| Format: | Article |
| Language: | English |
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Editorial Office of Rehabilitation Medicine
2016-06-01
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| Series: | 康复学报 |
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| Online Access: | http://kfxb.publish.founderss.cn/thesisDetails#10.3724/SP.J.1329.2016.03005 |
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| author | Xiangbin WANG Jinran ZHONG Jian HE Xiang LI Meijin HOU |
| author_facet | Xiangbin WANG Jinran ZHONG Jian HE Xiang LI Meijin HOU |
| author_sort | Xiangbin WANG |
| collection | DOAJ |
| description | Objective:Combined with a static finite element model of knee joint and the gait data, a dynamic finite element (FE) model was established to simulate the stress change within the knee joint during level walking, aiming to provide an objective outcome measurement from biomechanical perspectives.Methods:Knee MRI images of a male and a female volunteers were scanned, four FE models were built by using Mimics, Geomagic, Ansys software. Gait data was imported to static finite element model to establish the dynamic FE model of knee joint during level walking. Models were verified before the volumes and stress on medial and lateral menisci were calculated in it.Results:The rigid structure of femur and tibia was set with grid size of 2 mm. The elements were 6, 349 and 4, 020, and the nodes were 18, 945 and 11, 966 respectively. Elastic material of menisci was set with grid size of 1 mm, elastic modulus of 120 MPa and poisson's ratio of 0.45. The elements of medial and lateral meniscus were 25, 801 and 23, 241, and nodes were 36, 903 and 33, 488. The volumes of medial and lateral menisci in the male volunteer were bigger than those in female one. But volume ratio between medial and lateral menisci on both knees was close in two volunteers. Ratios of medial and lateral menisci on left and right knee in male volunteer were 0.99 and 0.97, while in female volunteer were 0.93 and 0.96. Larger stress was shown on medial meniscus than on lateral part which ratio was between 1.11-1.43. Stress on medial meniscus was more concentrate and stress distribution on two menisci was less symmetrical in female than in male (1.22-1.27 vs 1.11-1.14).Conclusion:Knee dynamic finite element model by integrated gait data could well reflect stress change in menisci at different events during level walking. |
| format | Article |
| id | doaj-art-183eb3ad00ae47da820506824a686344 |
| institution | Kabale University |
| issn | 2096-0328 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | Editorial Office of Rehabilitation Medicine |
| record_format | Article |
| series | 康复学报 |
| spelling | doaj-art-183eb3ad00ae47da820506824a6863442025-01-14T10:06:18ZengEditorial Office of Rehabilitation Medicine康复学报2096-03282016-06-012651123095761A Dynamic Finite Element Model of Knee Joint Based on Gait AnalysisXiangbin WANGJinran ZHONGJian HEXiang LIMeijin HOUObjective:Combined with a static finite element model of knee joint and the gait data, a dynamic finite element (FE) model was established to simulate the stress change within the knee joint during level walking, aiming to provide an objective outcome measurement from biomechanical perspectives.Methods:Knee MRI images of a male and a female volunteers were scanned, four FE models were built by using Mimics, Geomagic, Ansys software. Gait data was imported to static finite element model to establish the dynamic FE model of knee joint during level walking. Models were verified before the volumes and stress on medial and lateral menisci were calculated in it.Results:The rigid structure of femur and tibia was set with grid size of 2 mm. The elements were 6, 349 and 4, 020, and the nodes were 18, 945 and 11, 966 respectively. Elastic material of menisci was set with grid size of 1 mm, elastic modulus of 120 MPa and poisson's ratio of 0.45. The elements of medial and lateral meniscus were 25, 801 and 23, 241, and nodes were 36, 903 and 33, 488. The volumes of medial and lateral menisci in the male volunteer were bigger than those in female one. But volume ratio between medial and lateral menisci on both knees was close in two volunteers. Ratios of medial and lateral menisci on left and right knee in male volunteer were 0.99 and 0.97, while in female volunteer were 0.93 and 0.96. Larger stress was shown on medial meniscus than on lateral part which ratio was between 1.11-1.43. Stress on medial meniscus was more concentrate and stress distribution on two menisci was less symmetrical in female than in male (1.22-1.27 vs 1.11-1.14).Conclusion:Knee dynamic finite element model by integrated gait data could well reflect stress change in menisci at different events during level walking.http://kfxb.publish.founderss.cn/thesisDetails#10.3724/SP.J.1329.2016.03005knee jointfinite element modelgait analysis |
| spellingShingle | Xiangbin WANG Jinran ZHONG Jian HE Xiang LI Meijin HOU A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis 康复学报 knee joint finite element model gait analysis |
| title | A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis |
| title_full | A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis |
| title_fullStr | A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis |
| title_full_unstemmed | A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis |
| title_short | A Dynamic Finite Element Model of Knee Joint Based on Gait Analysis |
| title_sort | dynamic finite element model of knee joint based on gait analysis |
| topic | knee joint finite element model gait analysis |
| url | http://kfxb.publish.founderss.cn/thesisDetails#10.3724/SP.J.1329.2016.03005 |
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