Evidence map›Paper›PMID 31904489›Full record

ArticleOsteoarthritis and cartilage2020

The molecular profile of synovial fluid changes upon joint distraction and is associated with clinical response in knee osteoarthritis.

F E Watt, B Hamid, C Garriga, A Judge, R Hrusecka, R J H Custers, M P Jansen, F P Lafeber, S C Mastbergen, T L Vincent

Open access · hybridAbstract read
In one paragraph

Article in Osteoarthritis and cartilage, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Evolving Strategies for Knee Osteoarthritis: A Narrative Review of Integrated Rehabilitation, Pharmacologic, and Joint-Preserving Interventions.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Review
  5. Review
  6. Article
  7. Article
  8. Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Exerkines and osteoarthritis.Frontiers in physiology · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. Article
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

10 authors at 5 institutions in 2 countries.

F E WattCentre for Osteoarthritis Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, Roosevelt Drive, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK. Electronic address: fiona.watt@kennedy.ox.ac.uk.
B HamidCentre for Osteoarthritis Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK. Electronic address: benjamin.hamid@fu-berlin.de.
C GarrigaCentre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK. Electronic address: cesar.garriga@phc.ox.ac.uk.
A JudgeCentre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK; Musculoskeletal Research Unit, University of Bristol, UK; National Institute for Health Research Bristol Biomedical Research Centre (NIHR Bristol BRC), University Hospitals Bristol NHS Foundation Trust, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, UK. Electronic address: andrew.judge@ndorms.ox.ac.uk.
R HruseckaCentre for Osteoarthritis Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK. Electronic address: rhrusecka@googlemail.com.
R J H CustersDepartment of Orthopaedic Surgery, University Medical Center Utrecht, the Netherlands. Electronic address: rcuster2@umcutrecht.nl.
M P JansenDepartment of Rheumatology & Clinical Immunology, University Medical Center Utrecht, the Netherlands. Electronic address: M.P.Jansen-36@umcutrecht.nl.
F P LafeberDepartment of Rheumatology & Clinical Immunology, University Medical Center Utrecht, the Netherlands. Electronic address: F.Lafeber@umcutrecht.nl.
S C MastbergenDepartment of Rheumatology & Clinical Immunology, University Medical Center Utrecht, the Netherlands. Electronic address: s.mastbergen@umcutrecht.nl.
T L VincentCentre for Osteoarthritis Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK. Electronic address: tonia.vincent@kennedy.ox.ac.uk.
University Medical Center Utrecht · NLUniversity of Oxford · GBMRC Lifecourse Epidemiology Unit · GBNuffield Orthopaedic Centre · GBVersus Arthritis · GB

Funding

Medical Research Council MR/S016538/1Versus Arthritis 20783
6 · The paper itself

Abstract

objectiveSurgical knee joint distraction (KJD) leads to clinical improvement in knee osteoarthritis (OA) and also apparent cartilage regeneration by magnetic resonance imaging. We investigated if alteration of the joint's mechanical environment during the 6 week period of KJD was associated with a molecular response in synovial fluid, and if any change was associated with clinical response.

method20 individuals undergoing KJD for symptomatic radiographic knee OA had SF sampled at baseline, midpoint and endpoint of distraction (6 weeks). SF supernatants were measured by immunoassay for 10 predefined mechanosensitive molecules identified in our previous pre-clinical studies. The composite Knee injury and OA Outcome Score-4 (KOOS

results13/20 (65%) were male with mean age 54°±°5yrs. All had Kellgren-Lawrence grade ≥2 knee OA. 6/10 analytes showed statistically significant change in SF over the 6 weeks distraction (activin A; TGFβ-1; MCP-1; IL-6; FGF-2; LTBP2), P < 0.05. Of these, all but activin A increased. Those achieving the minimum clinically important difference of 10 points for KOOS

conclusionDetectable, significant molecular changes are observed in SF following KJD, that are remarkably consistent between individuals. Preliminary findings appear to suggest that increases in some molecules are associated with clinically meaningful responses. Joint distraction may provide a potential opportunity in the future to define regenerative biomarker(s) and identify pathways that drive intrinsic cartilage repair.

Indexed as

External FixatorsActivinsCell Adhesion MoleculesChemokine CCL2FemaleFibroblast Growth Factor 2HumansInterleukin-6Interleukin-8Latent TGF-beta Binding ProteinsMaleMatrix Metalloproteinase 3Middle AgedOrthopedic ProceduresOsteoarthritis, KneeSynovial Fluidactivin AActivinsCCL2 protein, humanCell Adhesion MoleculesChemokine CCL2CXCL8 protein, humanFibroblast Growth Factor 2IL6 protein, humanInterleukin-6Interleukin-8Latent TGF-beta Binding ProteinsLTBP2 protein, humanMatrix Metalloproteinase 3MMP3 protein, humanTGFB1 protein, humanTIMP1 protein, humanTissue Inhibitor of Metalloproteinase-1TNFAIP6 protein, humanTransforming Growth Factor beta1BiomarkerCytokinesDistractionOrthopaedicOsteoarthritisSynovial fluid

Identifiers

PMID31904489
PMCPMC7054834
OpenAlexW2996934389

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.