Cited by 40Osteoarthritis Treatment and MechanismsRheumatoid Arthritis Research and TherapiesHip disorders and treatments

Detection of synovitis in early knee osteoarthritis by MRI and serum biomarkers in Japanese general population

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Ishibashi, Kyota, Sasaki, Eiji, Ota, Seiya, Chiba, Daisuke, Yamamoto, Yuji, Tsuda, Eiichi, Yoshikuni, Sugimura, Ihara, Kazushige +1 more·2020·Scientific Reports

Abstract

To investigate synovitis’ influence on early knee osteoarthritis (EKOA) by serum biomarkers and magnetic resonance imaging (MRI) findings in Japanese women. We enrolled 255 women aged 30–70 without radiographic abnormalities (Kellgren–Lawrence grade ≥ 2). Knee injury, OA outcome scores (KOOS), clinical examinations, and standing radiograph were used for classification criteria of EKOA. Participants were classified into normal knee group and EKOA group. All participants underwent MRIs of their right knee. The amount of effusion-synovitis volume was quantified. We compared serum matrix metalloproteinases-3 levels (MMP-3), high-sensitivity C-reactive protein, interleukin-6, and adiponectin between the groups. The relationship between synovitis and EOKA was investigated using multiple linear regression. Fifty-four participants (21%) were classified as EKOA. Serum MMP-3 concentration and effusion-synovitis volume were higher in patients with EKOA ( p = 0.025 and p = 0.001, respectively). Effusion-synovitis volume negatively correlated with all KOOS subscales and positively correlated with serum MMP-3 concentration. Serum MMP-3 concentration was associated with effusion-synovitis volume β = 0.60, p < 0.001). There was mildly active but definitive synovitis in EKOA. This was an observational study so that no conclusions can be drawn regarding cause-effect for synovitis and symptoms. Future studies should conduct follow-up of participants with synovitis to assess the progression of knee OA.

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  • Ultrasound elastography measures tissue stiffness with strain or shear wave approaches.

    “By measuring tissue stiffness with strain or shear wave approaches, ultrasound elastography advances this [68].”

    From Biomarker-Guided Imaging and AI-Augmented Diagnosis of Degenerative Joint Disease (2025) · cites this paper as [68]

    The Materials and methods section describes measuring synovitis with MRI, not ultrasound elastography. Searches for elastography, tissue stiffness, strain, and shear-wave approaches found no passage addressing how ultrasound elastography works. (LLM, conf=0.75)

    Experimental — accuracy not yet measured

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Authors
Ishibashi, K., Sasaki, E., Ota, S., Chiba, D., Yamamoto, Y., Tsuda, E., Yoshikuni, S., Ihara, K., & Ishibashi, Y.
Affiliations
Hirosaki University (JP)
Venue
Scientific Reports
Published
2020-07-23
Volume
10
Issue
1
Pages
12310-12310
ISSN
2045-2322 (ISSN-L)
OpenAlex
W3044223167
Cited by
40
References
39
Citations by year
2026: 9 · 2025: 7 · 2024: 6 · 2023: 3 · 2022: 8 · 2021: 6 · 2020: 1
FWCI
3.39
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Japanese society for the promotion of science (21500676, 18K16606, 18K09091)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Health Sciences › Medicine › Surgery › Hip disorders and treatments
Keywords
early knee osteoarthritis, synovitis, matrix metalloproteinase-3, serum biomarkers, C-reactive protein, interleukin-6, adiponectin, knee MRI, women, Japanese population, KOOS
MeSH terms
Adult, Aged, Female, Humans, Japan, Magnetic Resonance Imaging, Male, Middle Aged, ROC Curve, Synovial Membrane, Synovitis, Biomarkers, Multivariate Analysis, Osteoarthritis, Knee, Asian People

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