ArticleDiagnostic and interventional imaging2026
Association between radial meniscal tears with and without posterior root involvement and subchondral insufficiency fracture of the knee on MRI: The mediating role of meniscal extrusion.
Article in Diagnostic and interventional imaging, 2026. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Association between low bone mineral density and subchondral insufficiency fractures of the knee in women, and influence of radial meniscal root tears.Diagnostic and interventional imaging · 2026Article
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Authors and funding
14 authors.
Funding
Abstract
purposeThe purpose of this study was to evaluate the relationship between subchondral insufficiency fracture (SIF) of the knee and radial meniscal tears on magnetic resonance imaging (MRI) and to examine within the medial compartment the potential mediating role of meniscal extrusion in this relationship. MATERIALS AND
methodsA retrospective matched case-control study of knee MRI examinations obtained from November 2021 to November 2024 was performed. MRIs were reviewed for SIF, meniscal tear morphology, and meniscal extrusion grade. Associations between radial tears and SIF (overall and medial compartment) were evaluated using conditional logistic regression adjusted for age, sex, and body mass index. Medial-compartment mediation was examined using a natural effects model with medial meniscal extrusion as the mediator.
resultsThe cohort included 343 patients with SIF (65.4 ± 10.1 [standard deviation] years; 226 women) and 343 patients without SIF (66.4 ± 10.0 [standard deviation] years; 224 women). Compared with knees without radial tears, odds of SIF were higher in the presence of radial root tears (odds ratio [OR], 7.62; 95% confidence interval [CI]: 4.40-13.21) and radial non-root tears (OR, 5.26; 95% CI: 2.48-11.15), with similar findings in the medial compartment. In mediation analysis, medial radial root tears showed an indirect association with medial SIF through medial meniscal extrusion (OR, 1.46; 95% CI: 1.16-1.84), accounting for 16.6% of the total effect.
conclusionRadial root and non-root tears are strongly associated with SIF on MRI, particularly in the medial compartment. Meniscal extrusion explained a small proportion of this association, suggesting that additional biomechanical pathways are likely in play.
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