Evidence map›Paper›PMID 40694090›Full record

Trial reportSkeletal radiology2025

Structural effects of whole body electromyostimulation on knee osteoarthritis: the EMSOAT Study.

Frank W Roemer, Stephanie Kast, Wolfgang Kemmler, Jamie E Collins, Klaus Engelke, Ali Guermazi, Michael Uder, Simon von Stengel

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Skeletal radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07352540 (Effects and Safety of Single Versus Triple Hyaluronic Acid Injections in the Treatment of Knee Osteoarthritis), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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.

NCT07352540 phase2 / phase3active not recruitingnot on this mapstarted 2026, after this paper: background citation

Effects and Safety of Single Versus Triple Hyaluronic Acid Injections in the Treatment of Knee Osteoarthritis

TypeinterventionalSponsorUniversity of Erlangen-Nürnberg Medical SchoolRan2026 to 2026Enrolled46ConditionsOsteoarthritis, KneeArmsThree intra-articular hyaluronic acid (HA) injections, One intra-articular hyaluronic acid (HA) injection
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
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

8 authors.

Frank W RoemerDepartment of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054, Erlangen, Germany. frank.roemer@uk-erlangen.de.ORCID http://orcid.org/0000-0001-9238-7350
Stephanie KastDepartment of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054, Erlangen, Germany.
Wolfgang KemmlerDepartment of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054, Erlangen, Germany.
Jamie E CollinsOrthopaedic and Arthritis Center for Outcomes Research (OrACORe) and Policy and Innovation EValuation in Orthopaedic Treatments (PIVOT) Center, Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, BTM Suite 5016, Boston, MA, 02115, USA.
Klaus EngelkeInstitute of Medial Physics, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Henkestr. 91, 91052, Erlangen, Germany.
Ali GuermaziQuantitative Imaging Center, Department of Radiology, Boston University School of Medicine, 820 Harrison Avenue, FGH Building, 4820 Harrison Avenue, FGH Building, 4th floor, Boston, MA, 02118, USA.
Michael UderDepartment of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054, Erlangen, Germany.
Simon von StengelDepartment of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054, Erlangen, Germany.

Funding

Else Kröner-Fresenius-Stiftung 2021_EKSE.22
6 · The paper itself

Abstract

objectiveWhole-body electromyostimulation (WB-EMS) might be an alternative option to conventional strength training for patients with knee osteoarthritis (OA). Our aim was to compare structural changes of knee OA between patients treated with WB-EMS and a control group (CG) treated with a standard of care approach. MATERIAL AND

methodsSeventy-two overweight participants with symptomatic knee OA were assigned to either WB-EMS or CG. MRIs were acquired at baseline and 7 months using a 3 T system. MRIs were read according to the MRI Osteoarthritis Knee Score (MOAKS) instrument. Between-group differences in regard to change in cartilage, bone marrow lesions (BMLs), osteophytes, meniscus damage and extrusion, and markers of inflammation were analyzed using Fisher's Exact and Wilcoxon Rank Sum tests.

resultsFewer knees in the WB-EMS groups showed cartilage worsening compared to the CG (18% vs. 40%, p = 0.046). There were fewer knees in the WB-EMS group showing an increase in BML size score of ≥ 1 (30% vs 46%, p = 0.43). Regarding prevalent BMLs that showed improvement, no change, or worsening, no differences were seen (p = 0.56). Little osteophyte and meniscal changes were observed during the observational period. Differences regarding change in inflammatory markers were not significant.

conclusionWhile there was a difference with fewer subregions showing worsening cartilage damage in the WB-EMS group, no significant differences were observed for change in BMLs, inflammation, osteophytes, and meniscal parameters. The observed improvement in clinical outcome parameters in favor of the WB-EMS group is likely due to other effects than improvement or less worsening of structural changes.

Indexed as

Electric Stimulation TherapyMagnetic Resonance ImagingOsteoarthritis, KneeAgedFemaleHumansMaleMiddle AgedTreatment OutcomeClinical trialKnee osteoarthritisMOAKSMRIWhole body electromyostimulation

Identifiers

PMID40694090
PMCPMC12460362

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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.