An MRI study of symptomatic adhesive capsulitis.

<h4>Background</h4>Appilication of MR imaging to diagnose Adhesive Capsulitis (AC) has previously been described. However, there is insufficient information available for the MRI analysis of AC. This study is to describe and evaluate the pathomorphology of the shoulder in Asian patients...

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Autores principales:	Wen Zhao, Xiaofeng Zheng, Yuying Liu, Wenlu Yang, Vardan Amirbekian, Luis E Diaz, Xudong Huang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0cd93d69ba54695b26bfae804f51c73
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spelling	oai:doaj.org-article:c0cd93d69ba54695b26bfae804f51c732021-11-18T08:11:42ZAn MRI study of symptomatic adhesive capsulitis.1932-620310.1371/journal.pone.0047277https://doaj.org/article/c0cd93d69ba54695b26bfae804f51c732012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23082152/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Appilication of MR imaging to diagnose Adhesive Capsulitis (AC) has previously been described. However, there is insufficient information available for the MRI analysis of AC. This study is to describe and evaluate the pathomorphology of the shoulder in Asian patients with AC compared to healthy volunteers.<h4>Methodology/principal findings</h4>60 Asian patients with clinically diagnosed AC and 60 healthy volunteers without frozen shoulder underwent MRI of the shoulder joint. All subjects who were age- and sex-matched control ones underwent routine MRI scans of the affected shoulder, including axial, oblique coronal, oblique sagittal T1WI SE and coronal oblique T2WI FSE sequences. Significant abnormal findings were observed on MRI, especially at the rotator cuff interval. The coracohumeral ligament (CHL), articular capsule thickness in the rotator cuff interval as well as the fat space under coracoid process were evaluated. MRI showed that patients with adhesive capsulitis had a significantly thickened coracohumeral ligament and articular capsule in the rotator cuff interval compared to the control subjects (4.2 vs. 2.4 mm, 7.2 vs. 4.4 mm; p<0.05). Partial or complete obliteration of the subcoracoid fat triangle was significantly more frequent in patients with adhesive capsulitis compared with control subjects (73% vs. 13%, 26% vs. 1.6%; p<0.001). Synovitis-like abnormality around the long biceps tendon was significantly more common in patients with adhesive capsulitis than in control subjects. With regards to the inter-observer variability, two MR radiologists had an excellent kappa value of 0.86.<h4>Conclusions/significance</h4>MRI can be used to show characteristic findings in diagnosing AC. Thickening of the CHL and the capsule at the rotator cuff interval and complete obliteration of the fat triangle under the coracoid process have been shown to be the most characteristic MR findings seen with AC.Wen ZhaoXiaofeng ZhengYuying LiuWenlu YangVardan AmirbekianLuis E DiazXudong HuangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47277 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wen Zhao Xiaofeng Zheng Yuying Liu Wenlu Yang Vardan Amirbekian Luis E Diaz Xudong Huang An MRI study of symptomatic adhesive capsulitis.
description	<h4>Background</h4>Appilication of MR imaging to diagnose Adhesive Capsulitis (AC) has previously been described. However, there is insufficient information available for the MRI analysis of AC. This study is to describe and evaluate the pathomorphology of the shoulder in Asian patients with AC compared to healthy volunteers.<h4>Methodology/principal findings</h4>60 Asian patients with clinically diagnosed AC and 60 healthy volunteers without frozen shoulder underwent MRI of the shoulder joint. All subjects who were age- and sex-matched control ones underwent routine MRI scans of the affected shoulder, including axial, oblique coronal, oblique sagittal T1WI SE and coronal oblique T2WI FSE sequences. Significant abnormal findings were observed on MRI, especially at the rotator cuff interval. The coracohumeral ligament (CHL), articular capsule thickness in the rotator cuff interval as well as the fat space under coracoid process were evaluated. MRI showed that patients with adhesive capsulitis had a significantly thickened coracohumeral ligament and articular capsule in the rotator cuff interval compared to the control subjects (4.2 vs. 2.4 mm, 7.2 vs. 4.4 mm; p<0.05). Partial or complete obliteration of the subcoracoid fat triangle was significantly more frequent in patients with adhesive capsulitis compared with control subjects (73% vs. 13%, 26% vs. 1.6%; p<0.001). Synovitis-like abnormality around the long biceps tendon was significantly more common in patients with adhesive capsulitis than in control subjects. With regards to the inter-observer variability, two MR radiologists had an excellent kappa value of 0.86.<h4>Conclusions/significance</h4>MRI can be used to show characteristic findings in diagnosing AC. Thickening of the CHL and the capsule at the rotator cuff interval and complete obliteration of the fat triangle under the coracoid process have been shown to be the most characteristic MR findings seen with AC.
format	article
author	Wen Zhao Xiaofeng Zheng Yuying Liu Wenlu Yang Vardan Amirbekian Luis E Diaz Xudong Huang
author_facet	Wen Zhao Xiaofeng Zheng Yuying Liu Wenlu Yang Vardan Amirbekian Luis E Diaz Xudong Huang
author_sort	Wen Zhao
title	An MRI study of symptomatic adhesive capsulitis.
title_short	An MRI study of symptomatic adhesive capsulitis.
title_full	An MRI study of symptomatic adhesive capsulitis.
title_fullStr	An MRI study of symptomatic adhesive capsulitis.
title_full_unstemmed	An MRI study of symptomatic adhesive capsulitis.
title_sort	mri study of symptomatic adhesive capsulitis.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/c0cd93d69ba54695b26bfae804f51c73
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An MRI study of symptomatic adhesive capsulitis.

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