Jung Sung-Weon, Jin Jin-Woo, Kim Dong-Hee, Kim Hyeon-Soo, Lee Gwang-Eun, Kim Jin-Woo, Jang Min-Jae
Department of Orthopedic Surgery, 37053Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Geyongsangnam-do, Republic of Korea.
Acta Radiol. 2020 Nov;61(11):1545-1552. doi: 10.1177/0284185120905098. Epub 2020 Feb 20.
Coronal and sagittal views of magnetic resonance imaging (MRI) were used to determine rotator cuff tear size and fatty infiltration, but these images were not enough to identify the tear shape.
To correlate the preoperative axial MRI views and arthroscopic surgical findings to identify the two-dimensional shapes in rotator cuff tears.
This study included 166 patients who underwent arthroscopic repair between 2015 and 2018. Preoperative coronal, sagittal, and axial MRI views were evaluated for tear size and geographic configuration in axial sections, and the length and the width were measured and were matched with arthroscopic surgical views by lateral portals.
The agreement of axial MRI views with the arthroscopic view was 88.0% in crescent, 97.2% in longitudinal, 78.6% in massive, and 100% in rotator cuff tear arthropathy. The mean agreement rate of axial MRI views with arthroscopic view was 81.9%. Mean mediolateral and anteroposterior tear sizes on axial MRI were 16.68 mm and 19.33 mm, respectively. Mean mediolateral and anteroposterior tear sizes by arthroscopic view were 21.49 mm and 21.04 mm, respectively. Tear sizes by MRI axial images were 71.3% of arthroscopic view. SST/IST degenerative changes were noted in most patients with massive tears and rotator cuff arthropathy ( = 0.001).
Rotator cuff tear shape on preoperative axial MRI view had close agreement (81.9%) with arthroscopic findings by lateral portal, and tear size by preoperative axial MRI views was 71.3% of that of arthroscopic view. Axial MRI views helped to predict the geometric tear shape of rotator cuff tears.
磁共振成像（MRI）的冠状面和矢状面用于确定肩袖撕裂大小和脂肪浸润，但这些图像不足以识别撕裂形状。
将术前轴向MRI视图与关节镜手术结果相关联，以识别肩袖撕裂的二维形状。
本研究纳入了2015年至2018年间接受关节镜修复的166例患者。评估术前冠状面、矢状面和轴向MRI视图的撕裂大小和轴向切片中的形态结构，并测量长度和宽度，通过外侧入路与关节镜手术视图进行匹配。
轴向MRI视图与关节镜视图的一致性在新月形撕裂中为88.0%，纵向撕裂中为97.2%，巨大撕裂中为78.6%，肩袖撕裂性关节病中为100%。轴向MRI视图与关节镜视图的平均一致率为81.9%。轴向MRI上平均内外侧和前后向撕裂大小分别为16.68mm和19.33mm。关节镜视图下平均内外侧和前后向撕裂大小分别为21.49mm和21.04mm。MRI轴向图像的撕裂大小为关节镜视图的71.3%。在大多数巨大撕裂和肩袖撕裂性关节病患者中观察到冈上肌/冈下肌退变改变（P = 0.001）。
术前轴向MRI视图上的肩袖撕裂形状与外侧入路关节镜检查结果有密切一致性（81.9%），术前轴向MRI视图的撕裂大小为关节镜视图的71.3%。轴向MRI视图有助于预测肩袖撕裂的几何形状。
