Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI

Background: The association between tuberosity cysts and rotator cuff tears (RCTs) and the nature of the major contributing factors to tuberosity cyst formation continue to be controversial. The purpose of our study was to evaluate the strength of associations of RCT and various factors involved in...

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Main Authors: Ji-Yong Gwark, Tae-Soo Park, Hyung Bin Park
Format: Article
Language:English
Published: SAGE Publishing 2019-02-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/2309499019825762
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spelling doaj-afbb3e57748c4a148826b82b5de23d132020-11-25T03:27:18ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902019-02-012710.1177/2309499019825762Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRIJi-Yong Gwark0Tae-Soo Park1Hyung Bin Park2 Department of Orthopaedic Surgery, School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea Department of Orthopaedic Surgery, College of Medicine, Hanyang University, Republic of Korea Department of Orthopaedic Surgery, School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of KoreaBackground: The association between tuberosity cysts and rotator cuff tears (RCTs) and the nature of the major contributing factors to tuberosity cyst formation continue to be controversial. The purpose of our study was to evaluate the strength of associations of RCT and various factors involved in the chronicity of RCT with tuberosity cysts, using magnetic resonance imaging (MRI) and radiographs. Methods: We reviewed consecutive patients with various disease entities between August 2004 and July 2013. After excluding unsuitable patients, this study involved 1007 shoulders of 906 consecutive patients. Each tuberosity cyst was categorized as an anterior greater tuberosity (GT), posterior GT, lesser tuberosity, and bare-area cyst. The odds ratios (ORs) and 95% confidence intervals (CIs) between the tuberosity cysts and various factors were evaluated by logistic regression analyses; p -value was set below 0.05. Results: Anterior GT cysts and posterior GT cysts on MRI or anterior GT cysts on radiographs were significantly associated with supraspinatus tendon (SST) tears ( p ≤ 0.019) and infraspinatus tendon (IST) tears ( p ≤ 0.004). Among the shoulder pathologies, RCTs only significantly associated with cyst formation (OR 4.23, 95% CI 3.17–5.65; p < 0.001). The retraction grade of Patte was significantly associated with anterior GT cyst (OR 3.65, 95% CI 2.42–5.48; p < 0.001). Conclusion: Detecting an anterior GT cyst in a radiograph, even a low prevalence, in a patient with symptomatic shoulder indicates a need to consider RCT, especially of the SST, IST, and a high possibility of a retracted tear.https://doi.org/10.1177/2309499019825762
collection DOAJ
language English
format Article
sources DOAJ
author Ji-Yong Gwark
Tae-Soo Park
Hyung Bin Park
spellingShingle Ji-Yong Gwark
Tae-Soo Park
Hyung Bin Park
Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
Journal of Orthopaedic Surgery
author_facet Ji-Yong Gwark
Tae-Soo Park
Hyung Bin Park
author_sort Ji-Yong Gwark
title Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
title_short Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
title_full Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
title_fullStr Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
title_full_unstemmed Association between the location of tuberosity cysts and rotator cuff tears: A comparative study using radiograph and MRI
title_sort association between the location of tuberosity cysts and rotator cuff tears: a comparative study using radiograph and mri
publisher SAGE Publishing
series Journal of Orthopaedic Surgery
issn 2309-4990
publishDate 2019-02-01
description Background: The association between tuberosity cysts and rotator cuff tears (RCTs) and the nature of the major contributing factors to tuberosity cyst formation continue to be controversial. The purpose of our study was to evaluate the strength of associations of RCT and various factors involved in the chronicity of RCT with tuberosity cysts, using magnetic resonance imaging (MRI) and radiographs. Methods: We reviewed consecutive patients with various disease entities between August 2004 and July 2013. After excluding unsuitable patients, this study involved 1007 shoulders of 906 consecutive patients. Each tuberosity cyst was categorized as an anterior greater tuberosity (GT), posterior GT, lesser tuberosity, and bare-area cyst. The odds ratios (ORs) and 95% confidence intervals (CIs) between the tuberosity cysts and various factors were evaluated by logistic regression analyses; p -value was set below 0.05. Results: Anterior GT cysts and posterior GT cysts on MRI or anterior GT cysts on radiographs were significantly associated with supraspinatus tendon (SST) tears ( p ≤ 0.019) and infraspinatus tendon (IST) tears ( p ≤ 0.004). Among the shoulder pathologies, RCTs only significantly associated with cyst formation (OR 4.23, 95% CI 3.17–5.65; p < 0.001). The retraction grade of Patte was significantly associated with anterior GT cyst (OR 3.65, 95% CI 2.42–5.48; p < 0.001). Conclusion: Detecting an anterior GT cyst in a radiograph, even a low prevalence, in a patient with symptomatic shoulder indicates a need to consider RCT, especially of the SST, IST, and a high possibility of a retracted tear.
url https://doi.org/10.1177/2309499019825762
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