The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis
Abstract Background Meniscal horns are important structures of meniscus, and longitudinal tears of these places could significantly change the load distribution among the knee joint. Few studies concerned the stress concentrated on bones, which may induce the osteonecrosis of subchondral bone. The g...
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| Format: | Article |
| Language: | English |
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BMC
2019-07-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13018-019-1255-1 |
| _version_ | 1818038783136759808 |
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| author | Kaijia Zhang Lan Li Longfei Yang Jianping Shi Liya Zhu Huixin Liang Xingsong Wang Xianfeng Yang Qing Jiang |
| author_facet | Kaijia Zhang Lan Li Longfei Yang Jianping Shi Liya Zhu Huixin Liang Xingsong Wang Xianfeng Yang Qing Jiang |
| author_sort | Kaijia Zhang |
| collection | DOAJ |
| description | Abstract Background Meniscal horns are important structures of meniscus, and longitudinal tears of these places could significantly change the load distribution among the knee joint. Few studies concerned the stress concentrated on bones, which may induce the osteonecrosis of subchondral bone. The goal of this study was to construct a finite element (FE) model with high fidelity of the knee joint and evaluate the biomechanical changes of load distribution of components after longitudinal tears of the horns of meniscus. Methods Computed tomography and magnetic resonance images were used to develop the FE model, and two different kinds of simulations, the vertical and the anterior load, mimicking the static stance and slight flexion simulations, were applied after longitudinal tears of the horns of meniscus. Results Significantly elevated peak compressive and shear stress was observed on the menisci, cartilages, and subchondral bones, and enlarged meniscus extrusion was noticed. Between all the four types of longitudinal tears investigated in this study, longitudinal tears at the posterior horn of the medial meniscus were found to be the most significant. Conclusions These findings showed that longitudinal tears of the meniscal horns lead to increased magnitude and changed distribution of stress and indicated the important role of posterior horn of medial meniscus. This may contribute to the mechanism between meniscal tears and spontaneous subchondral bone osteonecrosis. |
| first_indexed | 2024-12-10T07:48:13Z |
| format | Article |
| id | doaj.art-1e03299d31ea42dc9e438c49babe2e9b |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-12-10T07:48:13Z |
| publishDate | 2019-07-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-1e03299d31ea42dc9e438c49babe2e9b2022-12-22T01:57:07ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2019-07-0114111210.1186/s13018-019-1255-1The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysisKaijia Zhang0Lan Li1Longfei Yang2Jianping Shi3Liya Zhu4Huixin Liang5Xingsong Wang6Xianfeng Yang7Qing Jiang8State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing UniversityState Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing UniversitySchool of Mechanical Engineering, Southeast UniversitySchool of Electrical and Automation Engineering, Nanjing Normal UniversitySchool of Electrical and Automation Engineering, Nanjing Normal UniversitySchool of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and AstronauticsSchool of Mechanical Engineering, Southeast UniversityDepartment of Radiology, Drum Tower Hospital affiliated to Medical School of Nanjing UniversityState Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital affiliated to Medical School of Nanjing UniversityAbstract Background Meniscal horns are important structures of meniscus, and longitudinal tears of these places could significantly change the load distribution among the knee joint. Few studies concerned the stress concentrated on bones, which may induce the osteonecrosis of subchondral bone. The goal of this study was to construct a finite element (FE) model with high fidelity of the knee joint and evaluate the biomechanical changes of load distribution of components after longitudinal tears of the horns of meniscus. Methods Computed tomography and magnetic resonance images were used to develop the FE model, and two different kinds of simulations, the vertical and the anterior load, mimicking the static stance and slight flexion simulations, were applied after longitudinal tears of the horns of meniscus. Results Significantly elevated peak compressive and shear stress was observed on the menisci, cartilages, and subchondral bones, and enlarged meniscus extrusion was noticed. Between all the four types of longitudinal tears investigated in this study, longitudinal tears at the posterior horn of the medial meniscus were found to be the most significant. Conclusions These findings showed that longitudinal tears of the meniscal horns lead to increased magnitude and changed distribution of stress and indicated the important role of posterior horn of medial meniscus. This may contribute to the mechanism between meniscal tears and spontaneous subchondral bone osteonecrosis.http://link.springer.com/article/10.1186/s13018-019-1255-1MeniscusLongitudinal tearFinite element analysisSubchondral bone osteonecrosis |
| spellingShingle | Kaijia Zhang Lan Li Longfei Yang Jianping Shi Liya Zhu Huixin Liang Xingsong Wang Xianfeng Yang Qing Jiang The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis Journal of Orthopaedic Surgery and Research Meniscus Longitudinal tear Finite element analysis Subchondral bone osteonecrosis |
| title | The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis |
| title_full | The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis |
| title_fullStr | The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis |
| title_full_unstemmed | The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis |
| title_short | The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis |
| title_sort | biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint a finite element analysis |
| topic | Meniscus Longitudinal tear Finite element analysis Subchondral bone osteonecrosis |
| url | http://link.springer.com/article/10.1186/s13018-019-1255-1 |
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