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| Influence of Meniscal Attachments Placement on Articular Stress Deterioration |
| YAO Jie1, NIU Wen-xin1, Cheung Jason Tak-Man2, ZHANG Ming3, FAN Yu-bo1,4 |
1. Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering,Beihang University, Beijing 100191, China;
2. Li Ning Sports Science Research Center, Beijing 101100, China;
3. Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Kong;
4. State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing 100191, China |
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Abstract Meniscal attachments provide constraint for meniscus and contribute to knee stability. However, the influence of attachments placement on articular mechanical environment remains unclear. The present study aims to characterize the stress deterioration caused by abnormal attachment locations. Different placement of medial meniscal attachments were analyzed with a three-dimensional(3D) finite element (FE) model of knee joint. The articular stress distribution under compressive loadings indicates that abnormal placement of medial meniscal attachments could cause stress deterioration in meniscus and tibia plateau, which may increase the risk of OA. The influence of PMMA relocation was more severe than that of AMMA. The anterior displacement of both AMMA and PMMA could decrease the tibial contact area and therefore weakening the meniscal function of loading transmission. The present study provides an insight into the biomechanical character of meniscal attachments and may help improving the meniscal transplantation in the future.
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Received: 05 October 2018
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| Fund:National Natural Science Foundation of China; grant number: 10925208, 1120101001; grant sponsor: National Basic Research Program of China; grant number: 2011CB710901 |
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Corresponding Authors:
FAN Yu-bo. E-mail: yubofan@buaa.edu.cn
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