Evidence map›Paper›PMID 32713185›Full record

SynthesisCartilage2021

Synovial Fluid Biomarkers in Knee Osteoarthritis: A Systematic Review and Quantitative Evaluation Using BIPEDs Criteria.

Angelo Boffa, Giulia Merli, Luca Andriolo, Christian Lattermann, Gian M Salzmann, Giuseppe Filardo

Registry-linked trialAbstract readSystematic Review
In one paragraph

Synthesis in Cartilage, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06040957 (Bone Marrow vs Adipose Tissue as a Cell Source for Infiltrative Treatment of Knee Osteoarthritis), which is not on this map. Cited by 62 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06040957 narecruitingnot on this mapstarted 2024, after this paper: background citation

Bone Marrow vs Adipose Tissue as a Cell Source for Infiltrative Treatment of Knee Osteoarthritis: Randomized Clinical Trial

TypeinterventionalSponsorIstituto Ortopedico RizzoliRan2024 to 2027Enrolled204ConditionsKnee OsteoarthritisArmsBone marrow aspirate concentrate injection, intra-articular injection of Minimally manipulated adipose tissue
3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Platelet-rich plasma injections induce disease-modifying effects in the treatment of osteoarthritis in animal models.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Pooled it
  4. Trial
  5. Review
  6. Article
  7. Article
  8. Review
  9. Novel Biomaterial-Based Synovial Fluid Analysis Reveals Protective microRNA Signatures in a Mouse Model of Acute Synovitis-Driven Osteoarthritis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  10. Review
  11. Article
  12. Synovial Fluid Biomarkers Reflect Pre- and Postoperative Clinical Features in Rotator Cuff Tears, Independent of Tear Size.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  13. Review
  14. Article
  15. Exercise-myokine relationships in osteoarthritis.Journal of translational medicine · 2026
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Angelo BoffaClinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.ORCID 0000-0002-1523-6900
Giulia MerliApplied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.ORCID 0000-0001-7895-5606
Luca AndrioloClinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.ORCID 0000-0001-6352-9671
Christian LattermannDepartment of Orthopaedic Surgery, Center for Cartilage Repair and Sports Medicine, Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA, USA.
Gian M SalzmannDepartment of Orthopaedic Surgery, Hip and Knee Department, Schulthess Clinic, Zürich, Switzerland.
Giuseppe FilardoApplied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this systematic review was to analyze the evidence about the efficacy of the several synovial fluid (SF) biomarkers proposed for knee osteoarthritis (OA), categorizing them by both molecular characteristics and clinical use according to the BIPEDs criteria, to provide a comprehensive and structured overview of the current literature.

designA systematic review was performed in May 2020 on PubMed, Cochrane Library, and Embase databases about SF biomarkers in patients with knee OA. The search was limited to articles in the last 20 years on human studies, involving patients with knee OA, reporting SF biomarkers. The evidence for each selected SF biomarker was quantified according to the 6 categories of BIPEDs classification.

resultsA total of 159 articles were included in the qualitative data synthesis and 201 different SF biomarkers were identified. Among these, several were investigated multiple times in different articles, for a total of 373 analyses. The studies included 13,557 patients with knee OA. The most promising SF biomarkers were C4S, IL-6, IL-8, Leptin, MMP-1/3, TIMP-1, TNF-α, and VEGF. The "burden of disease" and "diagnostic" categories were the most represented with 132 and 106 different biomarkers, respectively.

conclusionsThe systematic review identified numerous SF biomarkers. However, despite the high number of studies on the plethora of identified molecules, the evidence about the efficacy of each biomarker is supported by limited and often conflicting findings. Further research efforts are needed to improve the understanding of SF biomarkers for a better management of patients with knee OA.

Indexed as

Osteoarthritis, KneeSynovial FluidBiomarkersCytokinesHumansInflammationKnee InjuriesBiomarkersCytokinesbiomarkercartilagekneeosteoarthritissynovial fluid

Identifiers

PMID32713185
PMCPMC8808867

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.