Evidence map›Paper›PMID 38231206›Full record

ArticleArchives of orthopaedic and trauma surgery2024

Diagnostic accuracy of non-contrast MRI in frozen shoulder.

Thiago de Angelis Guerra Dotta, Jorge Henrique Assunção, Eduardo Baptista, Fernando Brandão Andrade E Silva, Mauro Emilio Conforto Gracitelli, Arnaldo Amado Ferreira Neto, Eduardo Angeli Malavolta

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In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
2.3field-weighted citation impact, top 14% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
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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 1 country.

Thiago de Angelis Guerra DottaInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil. thiagogdotta@gmail.com.ORCID http://orcid.org/0000-0002-6777-4460
Jorge Henrique AssunçãoInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Eduardo BaptistaInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Fernando Brandão Andrade E SilvaInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Mauro Emilio Conforto GracitelliInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Arnaldo Amado Ferreira NetoInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Eduardo Angeli MalavoltaInstituto de Ortopedia e Traumatologia, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo-IOTHCFMUSP, Rua Dr. Ovídio Pires de Campos 333 3 Floor, Cerqueira Cesar, São Paulo, SP, 05403-010, Brazil.
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRHospital do Coração · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDespite being the most used exam today, few studies have evaluated the accuracy of findings on non-contrast magnetic resonance imaging (MRI). The primary objective of the study was to evaluate the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of non-contrast MRI findings in frozen shoulder, isolated and in combination. The secondary objectives were to define the interobserver and intraobserver agreement of the assessments and the odds ratio for frozen shoulder because of the various findings of MRI.

methodsA retrospective diagnostic accuracy study comparing non-contrast MRI findings between the frozen shoulder group and the control group. Sensitivity, specificity, positive and negative predictive value, accuracy, odds ratio, interobserver and intraobserver agreement were calculated for each finding and their possible associations.

resultsThe hyperintensity on capsule in the axillary recess presented 84% sensitivity, 94% specificity, and 89% accuracy. The obliteration of the subcoracoid fat triangle in the rotator interval had sensitivity 34%, specificity 82% and accuracy 58%. For coracohumeral ligament thickness ≥ 2 mm had specificity 66%, 48% specificity and 57% accuracy. Capsule thickness in the axillary recess ≥ 4 mm resulted in 54% sensitivity, 82% specificity, and 68% accuracy. Regarding interobserver agreement, only the posteroinferior and posterosuperior quadrants showed moderate results, and all the others showed strong reliability. The odds ratio for hyperintensity in the axillary recess was 82.3 for frozen shoulder. The association of these findings increased specificity (95%).

conclusionThe accuracy of non-contrast magnetic resonance imaging is high for diagnosing frozen shoulder, especially when evaluating the hyperintensity of the axillary recess. The exam has high reliability and reproducibility. The presence of an association of signs increases the specificity of the test. LEVEL OF EVIDENCE: Level III, study of diagnostic test.

Indexed as

BursitisShoulder JointHumansMagnetic Resonance ImagingReproducibility of ResultsRetrospective StudiesSensitivity and SpecificityAdhesive capsulitisData accuracyDiagnosisFrozen shoulderMagnetic resonance imagingObserver variationReproducibility of resultsShoulder joint

Identifiers

PMID38231206
OpenAlexW4390950015

What OpenQuestion holds

Textmetadata
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.