Evidence map›Paper›PMID 38303000›Full record

ReviewSystematic reviews2024

Minimal clinically important change of knee flexion in people with knee osteoarthritis after non-surgical interventions using a meta-analytical approach.

M Denika C Silva, Andrew P Woodward, Angela M Fearon, Diana M Perriman, Trevor J Spencer, Jacqui M Couldrick, Jennie M Scarvell

Open access · goldAbstract readReview
In one paragraph

Review in Systematic reviews, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
14.1field-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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 30 citations in OpenAlex.

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  4. Efficacy of Active Exercises to Improve Range of Motion in Knee Joint After Total Knee Arthroplasty. A Randomized Controlled Trial.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
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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

7 authors at 2 institutions in 2 countries.

M Denika C SilvaFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia. denikach@gmail.com.ORCID 0000-0001-8648-471X
Andrew P WoodwardFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
Angela M FearonFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
Diana M PerrimanFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
Trevor J SpencerFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
Jacqui M CouldrickFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
Jennie M ScarvellFaculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
University of Canberra · AUAustralian National University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMinimal clinically important change (MCIC) represents the minimum patient-perceived improvement in an outcome after treatment, in an individual or within a group over time. This study aimed to determine MCIC of knee flexion in people with knee OA after non-surgical interventions using a meta-analytical approach.

methodsFour databases (MEDLINE, Cochrane, Web of Science and CINAHL) were searched for studies of randomised clinical trials of non-surgical interventions with intervention duration of ≤ 3 months that reported change in (Δ) (mean change between baseline and immediately after the intervention) knee flexion with Δ pain or Δ function measured using tools that have established MCIC values. The risk of bias in the included studies was assessed using version 2 of the Cochrane risk-of-bias tool for randomised trials (RoB 2). Bayesian meta-analytic models were used to determine relationships between Δ flexion with Δ pain and Δ function after non-surgical interventions and MCIC of knee flexion.

resultsSeventy-two studies (k = 72, n = 5174) were eligible. Meta-analyses included 140 intervention arms (k = 61, n = 4516) that reported Δ flexion with Δ pain using the visual analog scale (pain-VAS) and Δ function using the Western Ontario and McMaster Universities Osteoarthritis Index function subscale (function-WOMAC). Linear relationships between Δ pain at rest-VAS (0-100 mm) with Δ flexion were - 0.29 (- 0.44; - 0.15) (β: posterior median (CrI: credible interval)). Relationships between Δ pain during activity VAS and Δ flexion were - 0.29 (- 0.41, - 0.18), and Δ pain-general VAS and Δ flexion were - 0.33 (- 0.42, - 0.23). The relationship between Δ function-WOMAC (out of 100) and Δ flexion was - 0.15 (- 0.25, - 0.07). Increased Δ flexion was associated with decreased Δ pain-VAS and increased Δ function-WOMAC. The point estimates for MCIC of knee flexion ranged from 3.8 to 6.4°.

conclusionsThe estimated knee flexion MCIC values from this study are the first to be reported using a novel meta-analytical method. The novel meta-analytical method may be useful to estimate MCIC for other measures where anchor questions are problematic. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42022323927.

Indexed as

Osteoarthritis, KneeBayes TheoremHumansKnee JointMeta-Analysis as TopicPainPain MeasurementBayesian meta-analysisErrors-in-variables modelHierarchical modelKnee flexionKnee osteoarthritisMeta-regressionMinimal clinically important changeMinimal clinically important differenceNon-surgical interventions

Identifiers

PMID38303000
PMCPMC10832130
OpenAlexW4391440475

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.