ArticleBMC musculoskeletal disorders2025
Stability characteristics of medial meniscus tear in mild varus knee: a finite element analysis.
Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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13 authors.
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Abstract
backgroundRecent studies have pointed out that varus alignment is a potential risk factor for medial overload and the development of osteoarthritis, which may influence the healing of meniscus tears. This study aimed to analyze the stress distribution of radial and longitudinal meniscal tears in mild varus knee and use it to explore the effects of varus alignment, tear type and length on the healing potential of medial meniscal tears.
methodsA healthy volunteer was recruited, and computed tomography (CT) and magnetic resonance imaging (MRI) scans of the right knee were performed to develop a subject-specific three-dimensional finite element model at a neutral position of 0° and with tibial varus angles of 3°, 6°, and 9°. The model contained bone structures (femur, tibia, fibula) and soft tissues (menisci, cartilage, ligaments). Stable and unstable radial tears and stable and unstable longitudinal tears (located in the white, red-white, or red zones) were introduced in the posterior medial meniscus, followed by finite element analysis.
resultsThe peak contact pressure in the medial compartment increased linearly with increasing varus angle (Slope = 1.3599, R
conclusionTo our knowledge, this study is among the first to investigate the influence of varus alignment on stress distribution in meniscal tears using finite element analysis. This study investigates two types of radial tears and two types of longitudinal tear prototypes in three zones simultaneously. This study provides novel insights into how varus alignment influences stress distribution in meniscal tears, suggesting its potential role in guiding treatment decisions. Future studies incorporating clinical data are warranted to validate these findings.
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