ArticleOsteoarthritis and cartilage open2025
Mature and inactive microvessels are prominent in areolar synovium of femoroacetabular impingement and hip osteoarthritis patients.
Article in Osteoarthritis and cartilage open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- UACR as a clinical predictor of incident osteoarthritis: prospective evidence from the UK Biobank.Clinical rheumatology · 2026Article
- Overview of joint tissue alterations in femoroacetabular impingement: What we know through laboratory analyses.Histology and histopathology · 2026Review
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Authors and funding
4 authors.
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Abstract
Objective: To provide insight into the earliest changes in hip osteoarthritis (OA) pathogenesis. Histopathology of synovium was investigated in patients with femoroacetabular impingement (FAI), FAI with early hip osteoarthritis, and advanced hip osteoarthritis. Methods: Synovium biopsies were collected from ten FAI, fourteen FAI with early osteoarthritis, and twelve advanced osteoarthritis patients. Histopathological grading allowed assessment of osteoarthritis-associated features. Microvessel density and maturity were determined through immunofluorescent labelling of CD31 and α-smooth muscle actin. Immunohistochemical staining was applied to calculate CD105 Results: In all groups, vascularization was prominent, with a mean [95 % confidence interval] of 1.64 [1.40, 1.89]. In all three groups, mature microvessel density was greater than immature microvessel density (82.32 [62.92, 101.71] versus 14.84 [9.86, 19.83] microvessels/mm Conclusion: Synovium from patients with FAI (with and without hip osteoarthritis) demonstrated synovitis and other OA-associated changes. Mature, inactive microvasculature was prominent in all three groups investigated. Histopathological similarities between FAI and hip OA synovium indicate that disordered synovium appears in FAI patients. These findings highlight a potential role of synovial changes in the progression from FAI to hip OA, underscoring the need for early intervention and further investigation into early disease mechanisms.
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