Evidence map›Paper›PMID 34555926›Full record

ArticleBone & joint open2021

Effectiveness of interventions for the management of primary frozen shoulder : a systematic review of randomized trials.

Saleema S Rex, Lucksy Kottam, Catriona McDaid, Stephen Brealey, Joseph Dias, Catherine E Hewitt, Ada Keding, Sarah E Lamb, Kath Wright, Amar Rangan

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Bone & joint open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06939530 (Comparision of Hydrodilatation Results at Different Volumes in Adhesive Capsulitis by Phases.), which is not on this map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
4.2field-weighted citation impact, top 5% 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.

NCT06939530 narecruitingnot on this mapstarted 2025, after this paper: background citation

Comparision of Hydrodilatation Results at Different Volumes in Adhesive Capsulitis by Phases.

TypeinterventionalSponsorJavier Muñoz PazRan2025 to 2026Enrolled64ConditionsCapsulitis of Shoulder, HydrodilatationArmsHydrodilatation (20 ml), Hydrodilatation (40 ml)
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

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  13. Drug Repurposing for Frozen Shoulder; a Bioinformatics Meta-Analysis.The archives of bone and joint surgery · 2025
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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

10 authors at 6 institutions in 1 country.

Saleema S RexYork Trials Unit, Department of Health Sciences, University of York, York, UK.ORCID 0000-0002-0318-6125
Lucksy KottamDepartment of Trauma & Orthopaedic Surgery, The James Cook University Hospital, Middlesbrough, UK.ORCID 0000-0002-7976-2416
Catriona McDaidYork Trials Unit, Department of Health Sciences, University of York, York, UK.ORCID 0000-0002-3751-7260
Stephen BrealeyYork Trials Unit, Department of Health Sciences, University of York, York, UK.ORCID 0000-0001-9749-7014
Joseph DiasLeicester General Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK.
Catherine E HewittYork Trials Unit, Department of Health Sciences, University of York, York, UK.ORCID 0000-0002-0415-3536
Ada KedingYork Trials Unit, Department of Health Sciences, University of York, York, UK.
Sarah E LambCollege of Medicine and Health, University of Exeter, Exeter, UK.
Kath WrightCentre for Reviews and Dissemination, University of York, York, UK.ORCID 0000-0002-9020-1572
Amar RanganYork Trials Unit, Department of Health Sciences, University of York, York, UK.ORCID 0000-0002-5452-8578
University of York · GBJames Cook University Hospital · GBKleijnen Systematic Reviews (United Kingdom) · GBLeicester General Hospital · GBRoyal College of Surgeons of England · GBUniversity of Exeter · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThis systematic review places a recently completed multicentre randomized controlled trial (RCT), UK FROST, in the context of existing randomized evidence for the management of primary frozen shoulder. UK FROST compared the effectiveness of pre-specified physiotherapy techniques with a steroid injection (PTSI), manipulation under anaesthesia (MUA) with a steroid injection, and arthroscopic capsular release (ACR). This review updates a 2012 review focusing on the effectiveness of MUA, ACR, hydrodilatation, and PTSI.

methodsMEDLINE, Embase, PEDro, Science Citation Index, Clinicaltrials.gov, CENTRAL, and the World Health Organization (WHO) International Clinical Trials Registry were searched up to December 2018. Reference lists of included studies were screened. No language restrictions applied. Eligible studies were RCTs comparing the effectiveness of MUA, ACR, PTSI, and hydrodilatation against each other, or supportive care or no treatment, for the management of primary frozen shoulder.

resultsNine RCTs were included. The primary outcome of patient-reported shoulder function at long-term follow-up (> 6 months and ≤ 12 months) was reported for five treatment comparisons across four studies. Standardized mean differences (SMD) were: ACR versus MUA: 0.21 (95% confidence interval (CI) 0.00 to 0.42), ACR versus supportive care: -0.13 (95% CI -1.10 to 0.83), and ACR versus PTSI: 0.33 (95% CI 0.07 to 0.59) and 0.25 (95% CI -0.34 to 0.85), all favouring ACR; MUA versus supportive care: 0 (95% CI -0.44 to 0.44) not favouring either; and MUA versus PTSI: 0.12 (95% CI -0.14 to 0.37) favouring MUA. None of these differences met the threshold of clinical significance agreed for the UK FROST and most confidence intervals included zero.

conclusionThe findings from a recent multicentre RCT provided the strongest evidence that, when compared with each other, neither PTSI, MUA, nor ACR are clinically superior. Evidence from smaller RCTs did not change this conclusion. The effectiveness of hydrodilatation based on four RCTs was inconclusive and there remains an evidence gap. Cite this article:

Indexed as

Adhesive capsulitisArthrographic distensionArthroscopic capsular releaseArthroscopic Capsular ReleaseClinical TrialsFrozen shoulderHydrodilatationhydrodilatationsmanipulation under anaesthesiaManipulation under anaesthesiamulticentre randomized controlled trialphysiotherapyPhysiotherapyPrimary frozen shoulderrandomized controlled trialsShouldersteroid injectionSteroid injectionSystematic review

Identifiers

PMID34555926
PMCPMC8479840
OpenAlexW3201147605

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.