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Research Article
Biomechanical Characteristics of Tibio-Femoral Joint After Partial Medial Meniscectomy Under Different Flexion Angles：A Finite Element Analysis
De Liang
Guangzhou University of Chinese Medicine
Corresponding Author
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Background : Arthroscopy is a commonly-used surgical procedure for meniscal tears. However, recent studies have pointed out that arthroscopy may lead to an elevated risk of knee osteoarthritis(KOA). The biomechanical analysis after arthroscopic partial meniscectomy(APM) is helpful to clarify the biomechanical factors of KOA. Therefore, this study aims to elucidate cartilage stress and meniscus displacement of the tibiofemoral joint under flexion and rotation loads after APM.
Methods：A detailed finite element model of the knee bone, cartilage, meniscus, and major ligaments was established by combining computed tomography and magnetic resonance images. Vertical load and front load were applied to simulate different knee buckling angles. At the same time, by simulating flexion of different degrees and internal and external rotations, the stresses on tibiofemoral articular cartilage and meniscus displacement were evaluated.
Results：Generally, the contact stress on both the femoral tibial articular cartilage and the meniscus increased with the increased flexion degree. Moreover, the maximum stress on the tibial plateau gradually moved backward. The maximum position shift value of the lateral meniscus was larger than that of the medial meniscus.
Conclusion：Our finite element model provides a realistic three-dimensional model to evaluate the influence of different joint range of motion and rotating tibiofemoral joint stress distribution. The decreased displacement of the medial meniscus may explain the higher pressure on the knee components. These characteristics of the medial tibiofemoral joint indicate the potential biomechanical risk of knee degeneration.
Keywords
Arthroscopy, femoral tibial articular cartilage, biomechanical risk, tibiofemoral joint
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CURRENT STATUS: Under Review
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This preprint is under consideration at BMC Musculoskeletal Disorders. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Biomechanical Characteristics of Tibio-Femoral Joint After Partial Medial Meniscectomy Under Different Flexion Angles：A Finite Element Analysis
De Liang
Guangzhou University of Chinese Medicine
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 11 Jan, 2021
No community comments so far
Reviewers invited
Invitations sent on 07 Jan, 2021
Editor assigned
On 07 Jan, 2021
Editor invited
On 07 Jan, 2021
Submission checks complete
On 07 Jan, 2021
First submitted
On 04 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background : Arthroscopy is a commonly-used surgical procedure for meniscal tears. However, recent studies have pointed out that arthroscopy may lead to an elevated risk of knee osteoarthritis(KOA). The biomechanical analysis after arthroscopic partial meniscectomy(APM) is helpful to clarify the biomechanical factors of KOA. Therefore, this study aims to elucidate cartilage stress and meniscus displacement of the tibiofemoral joint under flexion and rotation loads after APM.
Methods：A detailed finite element model of the knee bone, cartilage, meniscus, and major ligaments was established by combining computed tomography and magnetic resonance images. Vertical load and front load were applied to simulate different knee buckling angles. At the same time, by simulating flexion of different degrees and internal and external rotations, the stresses on tibiofemoral articular cartilage and meniscus displacement were evaluated.
Results：Generally, the contact stress on both the femoral tibial articular cartilage and the meniscus increased with the increased flexion degree. Moreover, the maximum stress on the tibial plateau gradually moved backward. The maximum position shift value of the lateral meniscus was larger than that of the medial meniscus.
Conclusion：Our finite element model provides a realistic three-dimensional model to evaluate the influence of different joint range of motion and rotating tibiofemoral joint stress distribution. The decreased displacement of the medial meniscus may explain the higher pressure on the knee components. These characteristics of the medial tibiofemoral joint indicate the potential biomechanical risk of knee degeneration.
Figure 1
Figure 2
Figure 3