Evidence map›Paper›PMID 41714735›Full record

ArticleSkeletal radiology2026

Pulvinar signal abnormalities on MRI are associated with atraumatic hip pain.

Adrian A Marth, Brian Tangsombatvisit, Zehra Akkaya, Gabby B Joseph, Alan L Zhang, Richard B Souza, Thomas M Link

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Skeletal radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Adrian A MarthDepartment of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry Street, San Francisco, CA, 94107, USA. adrian.marth@ucsf.edu.ORCID http://orcid.org/0000-0002-7334-0757
Brian TangsombatvisitDepartment of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry Street, San Francisco, CA, 94107, USA.
Zehra AkkayaDepartment of Radiology, Ankara University, Ankara, Turkey.
Gabby B JosephDepartment of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry Street, San Francisco, CA, 94107, USA.
Alan L ZhangDepartment of Orthopaedic Surgery, University of California, San Francisco, San Francisco, USA.
Richard B SouzaDepartment of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA, USA.
Thomas M LinkDepartment of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry Street, San Francisco, CA, 94107, USA.

Funding

Understanding the mechanisms by which weight change affects progression of knee osteoarthritis in obese and overweight individuals: An analysis of the Osteoarthritis Initiative DatasetR01AR078917 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GABRIELLE JOSEPH, THOMAS M LINK · 2021 to 2026
$3.4M
NIAMS NIH HHS R01 AR078917NIAMS NIH HHS R01-AR078917
6 · The paper itself

Abstract

objectiveTo investigate MRI abnormalities of the pulvinar and ligamentum teres (LT) in patients with atraumatic hip pain, as well as to describe a grading system for pulvinar signal abnormalities and test its reproducibility. MATERIALS AND

methodsThis retrospective study included 128 patients with atraumatic hip pain and no reported structural abnormalities other than those of the pulvinar and LT on hip MRI, along with 64 asymptomatic controls. MR images were evaluated by two readers and included grading of pulvinar signal abnormalities (normal, grade 1: < 50% fat replacement, grade 2: > 50% fat replacement), LT signal abnormality, LT thickening, and LT tear. Ordinal variables were dichotomized for further analysis. Group differences were analyzed using logistic regression models. Inter-reader agreement was assessed using kappa statistics.

resultsPulvinar signal abnormalities were significantly associated with a higher odds ratio (OR) of hip pain (OR, 4.28; 95% CI, 1.81-11.49; p = 0.002). No significant group differences were found for LT signal increase, LT thickening, or LT tear (p-value range = 0.43-0.71). Inter-reader and intra-reader agreement for pulvinar signal abnormalities grading were almost perfect (κ = 0.85 [95% CI, 0.76-0.93] and κ = 0.92 [95% CI, 0.64-1.00]).

conclusionPatients with atraumatic hip pain undergoing MRI demonstrated a significantly higher prevalence of pulvinar signal abnormalities in the absence of other relevant structural pathology. These results underscore the importance of systematically evaluating the pulvinar during hip MRI interpretation. Furthermore, a grading system for pulvinar signal abnormalities was introduced.

Indexed as

ArthralgiaHip JointMagnetic Resonance ImagingPulvinarRound LigamentsAdultAgedFemaleHumansMaleMiddle AgedReproducibility of ResultsRetrospective StudiesGrading systemHipMRIPainPulvinar

Identifiers

PMID41714735
PMCPMC13139251

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.