The Association Between Rotator Cuff Muscle Fatty Infiltration and Glenoid Morphology in Glenohumeral Osteoarthritis
The Association Between Rotator Cuff Muscle Fatty Infiltration and Glenoid Morphology in Glenohumeral Osteoarthritis
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DOI：
10.2106/jbjs.17.00232
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发表时间：
2018-03-07
影响因子：
5.3
通讯作者：
Iannotti, Joseph P.
中科院分区：
文献类型：
--
作者：
Donohue, Kenneth W.;Ricchetti, Eric T.;Iannotti, Joseph P.
背景资料：关节盂形态和肩袖肌肉质量是影响全肩关节置换术（TSA）后关节盂组件寿命的重要解剖因素。我们假设肩袖肌肉脂肪浸润与盂肱骨关节炎（OA）病理性盂骨丢失增加有关。方法：我们回顾性分析了175例（平均年龄66岁，范围44至90岁）接受TSA治疗原发性盂肱骨关节炎的190例术前计算机断层扫描（CT）扫描。二维正交CT图像在肩胛骨平面从三维图像重建。病理性关节线内侧化是使用关节盂穹窿模型定义的。直接测量病理性关节盂扭转。根据改良Walch分类（亚型A1、A2、B1、B2、B3、Cl和C2）对关节盂形态进行分级。评估肩袖肌脂肪浸润，并在矢状面CT切片上对每块肌肉进行Goutallier评分。结果：冈上肌、冈下肌和小圆肌的Goutallier评分在Walch亚型之间有显著差异（P < 0.05）。
Background: Glenoid morphology and rotator cuff muscle quality are important anatomic factors that can impact longevity of the glenoid component following total shoulder arthroplasty (TSA). We hypothesized that rotator cuff muscle fatty infiltration is associated with increased pathologic glenoid bone loss in glenohumeral osteoarthritis (OA).Methods: We retrospectively reviewed 190 preoperative computed tomography (CT) scans of 175 patients (mean age, 66 years; range, 44 to 90 years) who underwent TSA for the treatment of primary glenohumeral OA. Two-dimensional orthogonal CT images were reformatted in the plane of the scapula from 3-dimensional images. Pathologic joint-line medialization was defined with use of the glenoid vault model. Pathologic glenoid version was measured directly. Glenoid morphology was graded according to a modified Walch classification (subtypes A1, A2, B1, B2, B3, Cl, and C2). Rotator cuff muscle fatty infiltration was assessed and assigned a Goutallier score on the sagittal CT slice just medial to the spinoglenoid notch for each muscle.Results: There was a significant difference in the Goutallier score for the supraspinatus, infraspinatus, and teres minor muscles between Walch subtypes (p