Obesity and arthritis of the knee Study (OAKS): study protocol for a prospective cohort study examining the treatments and outcomes of people with obesity and severe knee arthritis.

Fatema G Dhaif, Nicholas Parsons, David R Ellard, Jeremy Rodrigues, Andrew Metcalfe

Abstract read

In one paragraph

Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–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.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Fatema G DhaifWarwick Clinical Trials Unit, University of Warwick Warwick Medical School, Coventry, UK fdhaif13@gmail.com.ORCID http://orcid.org/0000-0001-8473-9045

Nicholas ParsonsWarwick Clinical Trials Unit, University of Warwick Warwick Medical School, Coventry, UK.

David R EllardWarwick Clinical Trials Unit, University of Warwick Warwick Medical School, Coventry, UK.ORCID http://orcid.org/0000-0002-2992-048X

Jeremy RodriguesWarwick Clinical Trials Unit, University of Warwick Warwick Medical School, Coventry, UK.

Andrew MetcalfeWarwick Clinical Trials Unit, University of Warwick Warwick Medical School, Coventry, UK.ORCID http://orcid.org/0000-0002-4515-8202

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPeople with body mass index (BMI) ≥35 kg/m METHODS AND ANALYSIS: This study will recruit 400 participants with severe Kellgren-Lawrence grade four knee osteoarthritis from eight secondary care centres in England. All participants, irrespective of BMI, will provide baseline clinical data and patient-reported outcome measures (PROMs), enabling characterisation of baseline associations between BMI, knee function and body image.A prespecified subgroup of participants with BMI ≥35 kg/m ETHICS AND DISSEMINATION: The study received ethical approval from the West of Scotland REC 5 (Ref: 24/WS/0146) on 10 October 2024. Results will be disseminated through peer-reviewed publications. TRIAL REGISTRATION NUMBER: ISRCTN42984928.

Indexed as

ObesityOsteoarthritis, KneeArthroplasty, Replacement, KneeBody Mass IndexEnglandFemaleHumansKnee JointMalePatient Reported Outcome MeasuresProspective StudiesResearch DesignWeight LossKneeObesityPatient Reported Outcome MeasuresProtocols & guidelines

Identifiers

PMID41819574

DOI10.1136/bmjopen-2025-112478

PMCPMC12983940

What Socratic holds

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LicenceCC BY

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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 Socratic graph.