Location of Rotator Cuff Tear Initiation A Magnetic Resonance Imaging Study of 191 Shoulders
Location of Rotator Cuff Tear Initiation A Magnetic Resonance Imaging Study of 191 Shoulders
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DOI：
10.1177/0363546517748925
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发表时间：
2018-03-01
影响因子：
4.8
通讯作者：
Yoo, Jae Chul
中科院分区：
文献类型：
--
作者：
Jeong, Jeung Yeol;Min, Seul Ki;Yoo, Jae Chul
背景：退行性肩袖撕裂（rct）通常被认为起源于冈上肌腱的前缘。然而，最近的一项超声研究表明，它们可能起源于比原先认为的更后方，甚至可能来自孤立的冈下肌（ISP）肌腱，并向前冈上肌传播。假设/目的：假设这一发现可以用磁共振成像（MRI）再现。目的是通过三维多平面MRI重建确定退行性随机对照试验最常见的位置。假设部分厚度撕裂的位置可以识别全厚度撕裂的起始区域。研究设计：横断面研究；证据水平，3。方法：回顾性分析2011年1月至2013年12月门诊就诊的245例rct（几乎全厚度或部分厚度撕裂）患者。采用OsiriX软件在三维多平面重建MRI上测量随机对照试验。在t2加权矢状像上测量肱二头肌肌腱到撕裂前缘的宽度和距离。在电子表格中，连续的数字列表示每个撕裂的大小（前后宽度）及其相对于肱二头肌肌腱的位置。将数据汇总以图形方式表示所有撕裂的宽度和位置。制作柱的频率直方图来可视化泪液的分布。泪液按宽度分为两组(A组；
Background: Degenerative rotator cuff tears (RCTs) are generally thought to originate at the anterior margin of the supraspinatus tendon. However, a recent ultrasonography study suggested that they might originate more posteriorly than originally thought, perhaps even from the isolated infraspinatus (ISP) tendon, and propagate toward the anterior supraspinatus.Hypothesis/Purpose: It was hypothesized that this finding could be reproduced with magnetic resonance imaging (MRI). The purpose was to determine the most common location of degenerative RCTs by using 3-dimensional multiplanar MRI reconstruction. It was assumed that the location of the partial-thickness tears would identify the area of the initiation of full-thickness tears.Study Design: Cross-sectional study; Level of evidence, 3.Methods: A retrospective analysis was conducted including 245 patients who had RCTs (nearly full-or partial-thickness tears) at the outpatient department between January 2011 and December 2013. RCTs were measured on 3-dimensional multiplanar reconstruction MRI with OsiriX software. The width and distance from the biceps tendon to the anterior margin of the tear were measured on T2-weighted sagittal images. In a spreadsheet, columns of consecutive numbers represented the size of each tear (anteroposterior width) and their locations with respect to the biceps brachii tendon. Data were pooled to graphically represent the width and location of all tears. Frequency histograms of the columns were made to visualize the distribution of tears. The tears were divided into 2 groups based on width (group A,