Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear

Background: Diagnosis of subscapularis (SSC) tendon lesions on magnetic resonance imaging (MRI) can be challenging. A small coracohumeral distance (CHD) has been associated with SSC tears. This study was designed to define a specific threshold value for CHD to predict SSC tears on axial MRI scans. M...

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Main Authors: Thomas Reichel, MD, Stefan Herz, MD, Mohammed el Tabbakh, MD, Thorsten Alexander Bley, MD, Piet Plumhoff, MD, Kilian Rueckl, MD
Format: Article
Language:English
Published: Elsevier 2021-05-01
Series:JSES International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666638321000761
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spelling doaj-d8dcc85d9e2641c2acbc2c583896639d2021-05-30T04:44:58ZengElsevierJSES International2666-63832021-05-0153424429Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tearThomas Reichel, MD0Stefan Herz, MD1Mohammed el Tabbakh, MD2Thorsten Alexander Bley, MD3Piet Plumhoff, MD4Kilian Rueckl, MD5Department of Orthopaedic Surgery, University of Wuerzburg, Wuerzburg, Germany; Corresponding author: Thomas Reichel, MD, Department of Orthopaedic Surgery, University of Wuerzburg, Wuerzburg, Germany.Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, GermanyDepartment of Orthopaedic Surgery, University of Wuerzburg, Wuerzburg, GermanyDepartment of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, GermanyDepartment of Orthopaedic Surgery, University of Wuerzburg, Wuerzburg, GermanyDepartment of Orthopaedic Surgery, University of Wuerzburg, Wuerzburg, GermanyBackground: Diagnosis of subscapularis (SSC) tendon lesions on magnetic resonance imaging (MRI) can be challenging. A small coracohumeral distance (CHD) has been associated with SSC tears. This study was designed to define a specific threshold value for CHD to predict SSC tears on axial MRI scans. Methods: This retrospective study included 172 shoulders of 168 patients who underwent arthroscopic surgery for rotator cuff tear or glenohumeral instability. Diagnostic arthroscopy confirmed an SSC tear in 62 cases (36.0%, test group a), rotator cuff tear tears other than SSC in 71 cases (41.3%, control group b) and glenohumeral instability without any rotator cuff tear in 39 cases (22.7%, zero-sample group c). All patients had a preoperative MRI of the shoulder (1.5T or 3T). Minimum CHD was measured on axial fat-suppressed proton density-, T2-, or T1-weigthed sequences. Receiver operating characteristics analysis was used to determine the threshold value for CHD, and sensitivity and specificity were calculated. Results: CHD measurement had a good interobserver reliability (Intraclass correlation coefficient 0.799). Mean CHD was highly significantly (P < .001) less for test group a (mean 7.3 mm, standard deviation ± 2.2) compared with control group b (mean 11.1 mm, standard deviation ± 2.3) or zero-sample group c (mean 13.6 mm, standard deviation ± 2.9). A threshold value of CHD <9.5 mm had a sensitivity of 83.6% and a specificity of 83.9% to predict SSC tears. Conclusion: A CHD <9.5 mm on MRI is predictive of SSC lesions and a valuable tool to diagnose SSC tears.http://www.sciencedirect.com/science/article/pii/S2666638321000761Subscapularis tearCoracohumeral distanceRotator cuff tearCoracohumeral impingement
collection DOAJ
language English
format Article
sources DOAJ
author Thomas Reichel, MD
Stefan Herz, MD
Mohammed el Tabbakh, MD
Thorsten Alexander Bley, MD
Piet Plumhoff, MD
Kilian Rueckl, MD
spellingShingle Thomas Reichel, MD
Stefan Herz, MD
Mohammed el Tabbakh, MD
Thorsten Alexander Bley, MD
Piet Plumhoff, MD
Kilian Rueckl, MD
Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
JSES International
Subscapularis tear
Coracohumeral distance
Rotator cuff tear
Coracohumeral impingement
author_facet Thomas Reichel, MD
Stefan Herz, MD
Mohammed el Tabbakh, MD
Thorsten Alexander Bley, MD
Piet Plumhoff, MD
Kilian Rueckl, MD
author_sort Thomas Reichel, MD
title Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
title_short Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
title_full Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
title_fullStr Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
title_full_unstemmed Less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
title_sort less than 9.5-mm coracohumeral distance on axial magnetic resonance imaging scans predicts for subscapularis tear
publisher Elsevier
series JSES International
issn 2666-6383
publishDate 2021-05-01
description Background: Diagnosis of subscapularis (SSC) tendon lesions on magnetic resonance imaging (MRI) can be challenging. A small coracohumeral distance (CHD) has been associated with SSC tears. This study was designed to define a specific threshold value for CHD to predict SSC tears on axial MRI scans. Methods: This retrospective study included 172 shoulders of 168 patients who underwent arthroscopic surgery for rotator cuff tear or glenohumeral instability. Diagnostic arthroscopy confirmed an SSC tear in 62 cases (36.0%, test group a), rotator cuff tear tears other than SSC in 71 cases (41.3%, control group b) and glenohumeral instability without any rotator cuff tear in 39 cases (22.7%, zero-sample group c). All patients had a preoperative MRI of the shoulder (1.5T or 3T). Minimum CHD was measured on axial fat-suppressed proton density-, T2-, or T1-weigthed sequences. Receiver operating characteristics analysis was used to determine the threshold value for CHD, and sensitivity and specificity were calculated. Results: CHD measurement had a good interobserver reliability (Intraclass correlation coefficient 0.799). Mean CHD was highly significantly (P < .001) less for test group a (mean 7.3 mm, standard deviation ± 2.2) compared with control group b (mean 11.1 mm, standard deviation ± 2.3) or zero-sample group c (mean 13.6 mm, standard deviation ± 2.9). A threshold value of CHD <9.5 mm had a sensitivity of 83.6% and a specificity of 83.9% to predict SSC tears. Conclusion: A CHD <9.5 mm on MRI is predictive of SSC lesions and a valuable tool to diagnose SSC tears.
topic Subscapularis tear
Coracohumeral distance
Rotator cuff tear
Coracohumeral impingement
url http://www.sciencedirect.com/science/article/pii/S2666638321000761
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