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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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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