Evidence map›Paper›PMID 25596158›Full record

Trial reportAnnals of the rheumatic diseases2015

A randomised trial of a brace for patellofemoral osteoarthritis targeting knee pain and bone marrow lesions.

Michael J Callaghan, Matthew J Parkes, Charles E Hutchinson, Andrew D Gait, Laura M Forsythe, Elizabeth J Marjanovic, Mark Lunt, David T Felson

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Annals of the rheumatic diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 6 pooled it
16.6field-weighted citation impact, top 1% 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

77 citing papers in PubMed, 6 syntheses or guidelines pooled it, 158 citations in OpenAlex.

  1. The effectiveness of knee bracing in non-operative soft tissue and degenerative knee injuries: A systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. Trial
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Michael J CallaghanArthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK Manchester Academic Health Science Centre, Manchester, UK.
Matthew J ParkesArthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK Manchester Academic Health Science Centre, Manchester, UK.ORCID http://orcid.org/0000-0002-1574-9933
Charles E HutchinsonDepartment of Imaging Sciences, University of Manchester, Manchester, UK Department of Health Sciences, University of Warwick, UK.
Andrew D GaitDepartment of Imaging Sciences, University of Manchester, Manchester, UK.
Laura M ForsytheArthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK Manchester Academic Health Science Centre, Manchester, UK.
Elizabeth J MarjanovicDepartment of Imaging Sciences, University of Manchester, Manchester, UK.
Mark LuntArthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK Manchester Academic Health Science Centre, Manchester, UK.
David T FelsonArthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK Manchester Academic Health Science Centre, Manchester, UK NIHR Manchester Musculoskeletal Biomedical Research Unit, Manchester Academic Health Science Centre, Manchester, UK Clinical Epidemiology Unit, Boston University School of Medicine, Boston, Massachusetts, USA.
Manchester Academic Health Science Centre · GBUniversity of Manchester · GBBoston University · US

Funding

WORK DISABILITY-- PERSONS WITH RHEUMATOID ARTHRITISP60AR047785 · NIAMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI FELSON, DAVID TOBIN · 2001 to 2016
$18.0M
Arthritis Research UK 18676Arthritis Research UK 20380Department of Health MANMKBRU-2012-1NIAMS NIH HHS AR47785NIAMS NIH HHS P60 AR047785Versus Arthritis 18676Wellcome Trust
6 · The paper itself

Abstract

objectiveBraces used to treat (PF) osteoarthritis (OA) may reduce contact stress across the PF joint. We hypothesised that in PF OA, braces would decrease knee pain and shrink PF bone marrow lesions (BMLs).

methodsEligible subjects had painful PF OA. Subjects were randomly allocated to brace or no brace for 6 weeks. Knee MRIs were acquired at baseline and 6 weeks. We measured BMLs on post-contrast fat suppressed sagittal and proton density weighted axial images. The primary symptom outcome was change in pain at 6 weeks during a preselected painful activity, and the primary structural outcome was BML volume change in the PF joint. Analyses used multiple linear regression.

resultsWe randomised 126 subjects aged 40-70 years (mean age 55.5  years; 72 females (57.1%)). Mean nominated visual analogue scale (0-10 cm) pain score at baseline was 6.5 cm. 94 knees (75%) had PF BMLs at baseline. Subjects wore the brace for a mean of 7.4 h/day. 6 subjects withdrew during the trial. After accounting for baseline values, the brace group had lower knee pain than the control group at 6 weeks (difference between groups -1.3 cm, 95% CI -2.0 to -0.7; p<0.001) and reduced PF BML volume (difference -490.6 mm(3), 95% CI -929.5 to -51.7; p=0.03) but not tibiofemoral volume (difference -53.9 mm(3), 95% CI -625.9 to 518.2; p=0.85).

conclusionsA PF brace reduces BML volume in the targeted compartment of the knee, and relieves knee pain. TRIAL REGISTRATION NUMBER: UK. ISRCTN50380458.

Indexed as

BracesAdultAgedArthralgiaBone MarrowBone Marrow DiseasesFemaleHumansLinear ModelsMagnetic Resonance ImagingMaleMiddle AgedOsteoarthritis, KneePain MeasurementPatellofemoral JointKnee OsteoarthritisRehabilitationTreatment

Identifiers

PMID25596158
PMCPMC4771926
OpenAlexW2098270713

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.