Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury

Abstract Purpose Anterior insertion of the supraspinatus muscle plays an essential role in rotator cuff tissue. We aimed to determine whether the distance between the midpoints of the supraspinatus central tendon and long head of the biceps tendon on a sagittal shoulder magnetic resonance imaging sc...

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Main Authors: Lifeng Yin, Hua Zhang, Yangang Kong, Xinyu Zhang, Wenlong Yan, Jian Zhang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Journal of Experimental Orthopaedics
Subjects:
Online Access:https://doi.org/10.1186/s40634-021-00410-6
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author Lifeng Yin
Hua Zhang
Yangang Kong
Xinyu Zhang
Wenlong Yan
Jian Zhang
author_facet Lifeng Yin
Hua Zhang
Yangang Kong
Xinyu Zhang
Wenlong Yan
Jian Zhang
author_sort Lifeng Yin
collection DOAJ
description Abstract Purpose Anterior insertion of the supraspinatus muscle plays an essential role in rotator cuff tissue. We aimed to determine whether the distance between the midpoints of the supraspinatus central tendon and long head of the biceps tendon on a sagittal shoulder magnetic resonance imaging scan can help to preoperatively diagnose an injury of the anterior insertion of the supraspinatus. Method This retrospective study reviewed 103 patients with a full‐thickness supraspinatus tendon tear: 50 patients with (injured group) and 53 patients without (intact group) anterior supraspinatus insertion tear. The inter‐tendon distance was measured based on an oblique sagittal magnetic resonance imaging scan. SPSS was used for statistical analyses. Two independent samples t‐test and receiver operating curve analysis were also performed. Results The measurements of inter‐tendon distance revealed good intra‐ and inter‐observer reliabilities with intra‐class correlation coefficients of 0.92 and 0.97, respectively. The inter‐tendon distance of the injured group was significantly greater than that of the intact group (10.1 ± 2.7 vs 8.0 ± 2.3 mm, P < 0.001). The diagnostic ability of the inter‐tendon distance was fair (area under the curve = 0.745), and a threshold of 9 mm had a specificity of 73% and sensitivity of 74%. Conclusion The distance between the supraspinatus central tendon and long head of the biceps tendon on magnetic resonance imaging was greater in patients with anterior supraspinatus insertion injury than those without the injury. A distance of 9 mm may be the cut‐off value and a good diagnosis marker for anterior supraspinatus insertion injury. Level of evidence Level III, diagnostic case–control study.
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spelling doaj.art-c7cd3a18dfc94ac6a252d27ef4a318712024-02-07T15:16:42ZengWileyJournal of Experimental Orthopaedics2197-11532021-01-0181n/an/a10.1186/s40634-021-00410-6Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injuryLifeng Yin0Hua Zhang1Yangang Kong2Xinyu Zhang3Wenlong Yan4Jian Zhang5Department of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaDepartment of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaDepartment of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaDepartment of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaDepartment of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaDepartment of OrthopaedicsThe First Affiliated Hospital of Chongqing Medical UniversityNO.1 Youyi Road400016ChongqingYuzhong DistrictChinaAbstract Purpose Anterior insertion of the supraspinatus muscle plays an essential role in rotator cuff tissue. We aimed to determine whether the distance between the midpoints of the supraspinatus central tendon and long head of the biceps tendon on a sagittal shoulder magnetic resonance imaging scan can help to preoperatively diagnose an injury of the anterior insertion of the supraspinatus. Method This retrospective study reviewed 103 patients with a full‐thickness supraspinatus tendon tear: 50 patients with (injured group) and 53 patients without (intact group) anterior supraspinatus insertion tear. The inter‐tendon distance was measured based on an oblique sagittal magnetic resonance imaging scan. SPSS was used for statistical analyses. Two independent samples t‐test and receiver operating curve analysis were also performed. Results The measurements of inter‐tendon distance revealed good intra‐ and inter‐observer reliabilities with intra‐class correlation coefficients of 0.92 and 0.97, respectively. The inter‐tendon distance of the injured group was significantly greater than that of the intact group (10.1 ± 2.7 vs 8.0 ± 2.3 mm, P < 0.001). The diagnostic ability of the inter‐tendon distance was fair (area under the curve = 0.745), and a threshold of 9 mm had a specificity of 73% and sensitivity of 74%. Conclusion The distance between the supraspinatus central tendon and long head of the biceps tendon on magnetic resonance imaging was greater in patients with anterior supraspinatus insertion injury than those without the injury. A distance of 9 mm may be the cut‐off value and a good diagnosis marker for anterior supraspinatus insertion injury. Level of evidence Level III, diagnostic case–control study.https://doi.org/10.1186/s40634-021-00410-6Rotator cuff tearMagnetic resonance imagingSupraspinatus central tendonLong head of the bicep tendonsAnterior supraspinatus insertion
spellingShingle Lifeng Yin
Hua Zhang
Yangang Kong
Xinyu Zhang
Wenlong Yan
Jian Zhang
Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
Journal of Experimental Orthopaedics
Rotator cuff tear
Magnetic resonance imaging
Supraspinatus central tendon
Long head of the bicep tendons
Anterior supraspinatus insertion
title Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
title_full Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
title_fullStr Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
title_full_unstemmed Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
title_short Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury
title_sort distance between the supraspinatus and long head of the biceps tendon on sagittal mri a new tool to identify anterior supraspinatus insertion injury
topic Rotator cuff tear
Magnetic resonance imaging
Supraspinatus central tendon
Long head of the bicep tendons
Anterior supraspinatus insertion
url https://doi.org/10.1186/s40634-021-00410-6
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