Video-based physiotherapy assessment of knee osteoarthritis in patients with knee pain

ISRCTN ISRCTN41057250
DOI https://doi.org/10.1186/ISRCTN41057250
Secondary identifying numbers 282608 in researchweb.org FoUiVGR
Submission date
24/04/2025
Registration date
09/05/2025
Last edited
09/05/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Musculoskeletal Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Knee osteoarthritis is a common condition with increasing prevalence, especially in older populations. The use of video-based consultations is growing in healthcare, but their validity and reliability in diagnosing knee osteoarthritis compared to traditional face-to-face assessments are not yet well established. This study aims to evaluate the validity and inter-rater reliability of physiotherapist-led video-based assessments for knee osteoarthritis compared to conventional face-to-face assessment.

Who can participate?
Participants must be aged 45 years or older, have experienced knee pain for at least 1 month, be able to communicate in Swedish, and have access to necessary technology (e.g., smartphone or computer). Individuals are excluded if they have previously been assessed for the current knee issue, undergone knee or hip replacement surgery, are currently receiving treatment for the condition, or have had recent knee trauma (within the past 4 weeks).

What does the study involve?
The study involves two assessment sessions per participant: one via video from the participant's home and one face-to-face at a rehabilitation clinic. The video assessments will be recorded for later review. Each participant will be evaluated by three licensed physiotherapists, and the sessions will take place in the same week. Participants will also provide demographic information and rate their knee pain.

What are the possible benefits and risks of participating?
Participants may benefit from a comprehensive assessment of their knee symptoms. The study aims to contribute to improved healthcare delivery through digital means. There are minimal risks involved; however, as with all clinical assessments, there is a slight possibility of discomfort during examination or misinterpretation of symptoms.

Where is the study run from?
The in-person assessments are conducted at Sportrehab in Frölunda, Göteborg, Sweden, and the video-based assessments are carried out using the regular digital platform of the clinic, with the physiotherapist based at the rehabilitation facility.

When is the study starting and how long is it expected to run for?
May 2024 to July 2024

Who is funding the study?
The Local Research and Development Council Gothenburg and Södra Bohuslän (Sweden)

Who is the main contact?
Elvira Lange, elvira.lange@gu.se

Study website

Contact information

Dr Elvira Lange
Public, Scientific, Principal Investigator

Guldhedsgatan 5A
Göteborg
413 20
Sweden

ORCiD logoORCID ID 0000-0003-4190-8667
Phone +46 (0)764956123
Email elvira.lange@gu.se

Study information

Study designPilot validity and reliability study
Primary study designObservational
Secondary study designPilot validity and reliability study
Study setting(s)Other
Study typeDiagnostic
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleVideo-based physiotherapy assessment of knee osteoarthritis in patients with knee pain: a validity and reliability pilot study
Study hypothesisAssessment of knee osteoarthritis could be performed via video with comparable results to a clinical assessment.
Ethics approval(s)

Approved 08/05/2024, Swedish Ethical Review Authority (Box 2110, Uppsala, 750 02, Sweden; +46 (0)10-475 08 00; registrator@etikprovning.se), ref: 2024-022 07-01

ConditionKnee osteoarthritis
InterventionParticipants were assessed by a physiotherapist in a traditional manner and additionally also assessed by a physiotherapist via video.
Intervention typeOther
Primary outcome measureConcurrent validity: agreement between the video-based physiotherapy assessment and the conventional face-to-face assessment for diagnosing KOA (yes/no), measured once for each participant
Secondary outcome measuresInterrater reliability: agreement between the video-based assessment and the recorded video-based assessment for diagnosing KOA (yes/no), measured once for each participant
Overall study start date08/05/2024
Overall study end date04/07/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit45 Years
Upper age limit100 Years
SexBoth
Target number of participants40
Total final enrolment35
Participant inclusion criteria1. Age 45 years or older
2. History of knee pain for at least 4 weeks
3. Sufficient linguistic and cognitive ability to understand conversational Swedish
4. Access to a device for video conferencing, such as a smartphone, computer, or tablet
5. Ability to get to the rehabilitation clinic in Gothenburg
Participant exclusion criteria1. Had been assessed by a physiotherapist or physician for the current knee pain
2. Arthroplasty of the knee or hip on the affected side
3. Ongoing treatment for the current knee pain or knee trauma over the past 4 weeks
Recruitment start date20/05/2024
Recruitment end date20/06/2024

Locations

Countries of recruitment

  • Sweden

Study participating centre

Sportrehab Frölunda
F O Petersons g 30
Västra Frölunda/Gothenburg
42131
Sweden

Sponsor information

The Local Research and Development Council Gothenburg and Södra Bohuslän
Research council

Guldhedsgatan 5A
Göteborg
413 20
Sweden

Email inger.marie.hansson@vgregion.se
Website https://www.researchweb.org/is/gsb

Funders

Funder type

Research council

The Local Research and Development Council Gothenburg and Södra Bohuslän

No information available

Results and Publications

Intention to publish date01/06/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in non-publicly available repository, Not expected to be made available
Publication and dissemination plan
IPD sharing planThe data are stored in a controlled-access facility at Region Västra Götaland. The data generated and analysed during the study are not openly available due to sensitivity concerns. Aggregated data can be obtained from the corresponding author upon reasonable request (Elvira Lange, elvira.m.lange@vgregion.se).
Dates of availability: request for data sharing is possible until May 2034.
Whether consent for data sharing was required and obtained from participants: no consent for sharing was obtained, so only aggregated data is available to share.
Comments on data anonymization: according to European data safety regulations, only aggregated data will be shared to avoid inaccurate anonymization.
Any ethical or legal restrictions: data sharing is limited by the Swedish secrecy regulations and the EU regulation GDPR.

Editorial Notes

25/04/2025: Study's existence confirmed by the Swedish Ethical Review Authority.