Evidence map›Paper›PMID 40988012›Full record

ArticleBMC musculoskeletal disorders2025

Video-based physiotherapy assessment of knee osteoarthritis in patients with knee pain: a validity and reliability pilot study.

Christin Heina, Susanne Beischer, Chan-Mei Ho-Henriksson, Elvira Lange

Abstract readValidation Study
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Christin HeinaUnit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, Gothenburg, SE-405 30, Sweden.ORCID http://orcid.org/0009-0009-3030-3946
Susanne BeischerUnit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, Gothenburg, SE-405 30, Sweden.ORCID http://orcid.org/0000-0002-9075-5073
Chan-Mei Ho-HenrikssonUnit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, Gothenburg, SE-405 30, Sweden.ORCID http://orcid.org/0000-0002-2513-7762
Elvira LangeUnit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, Gothenburg, SE-405 30, Sweden. elvira.lange@gu.se.ORCID http://orcid.org/0000-0003-4190-8667

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDigital health technologies are advancing rapidly, with an increasing number of physiotherapists favoring real-time, video-based platforms over telephone-based modalities. Osteoarthritis affects an estimated 595 million individuals worldwide, with approximately 62% of cases involving the knee joint. However, evidence regarding the validity and reliability of video-based assessments for knee osteoarthritis (KOA) remains scarce. The purpose of this pilot study was to explore the feasibility of video-based physiotherapy assessment of KOA in patients with knee pain. Additionally, we aimed to provide preliminary data on its concurrent validity and interrater reliability compared with conventional face-to-face assessment.

methodsA cross-sectional validity and reliability pilot study was conducted in June 2024. Participants were recruited through public advertisements. Eligible individuals were aged 45 years or older and reported knee pain. Each participant underwent both a real-time video-based physiotherapy assessment and a conventional, face-to-face assessment. The video-based assessments were recorded for later analysis. Concurrent validity was examined by determining the exact or potential agreement between the video-based and face-to-face assessments. Interrater reliability was evaluated by comparing the live video-based assessments with those obtained from the recorded video-based assessments.

resultsFor concurrent validity, exact agreement was observed in 28 of 35 cases (80%; κ = 0.35), indicating fair agreement. Potential agreement was achieved in 33 of 35 cases (94%; κ = 0.64), indicating substantial agreement. Interrater reliability demonstrated exact agreement in 25 of 29 cases (86%; κ = 0.52), corresponding to moderate agreement. Potential agreement for interrater reliability was observed in 27 of 29 cases (93%; κ = 0.63), corresponding to substantial agreement.

conclusionsVideo-based physiotherapy assessment appears feasible and may provide preliminary indications of validity for diagnosing KOA in individuals with nontraumatic knee pain. The results suggest acceptable interrater agreement and highlight the need for more standardized digital assessment protocols to ensure consistent and reliable use in clinical practice.

trial registrationISRCTN Registry (ISRCTN41057250), 09/05/2025. Retrospectively registered. Prospectively registered in FoU in VGR (researchweb.org) 282608, Date of registration 26/03/2024.

Indexed as

ArthralgiaOsteoarthritis, KneePhysical Therapy ModalitiesVideo RecordingAgedCross-Sectional StudiesFeasibility StudiesFemaleHumansMaleMiddle AgedPain MeasurementPilot ProjectsReproducibility of ResultsDigitalE-healthOsteoarthritisReliabilityValidityVideo-based assessment

Identifiers

PMID40988012
PMCPMC12455796

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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.