Association between the Critical Shoulder Angle and Rotator Cuff Tears in Japan
Association between the Critical Shoulder Angle and Rotator Cuff Tears in Japan
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DOI：
10.18926/amo/56371
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发表时间：
2018-12-01
影响因子：
0.5
通讯作者：
Machida, Hirohisa
中科院分区：
文献类型：
--
作者：
Watanabe, Akihisa;Ono, Qana;Machida, Hirohisa
肩胛骨的不同解剖变异，例如临界肩角（CSA），被发现与肩袖撕裂（RCTs）有关，但目前尚不清楚CSA是否是日本人的一个危险因素。在此，我们试图确定CSA是否与日本人群中的RCT相关，以及CSA是否是比常规使用的参数更有用的参数。随机对照组和非随机对照组各54例。比较两组的CSA、肩峰指数（AI）和肩峰外侧角（LAA）。进行受试者工作特征（ROC）分析，以确定截止值和曲线下面积（AUC），并评估比值比。RCT组中CSA和AI的平均值显著更大（36.3度vs. 33.7度，0.74 vs. 0.68），但LAA未显示出显著的组间差异。CSA和AI的AUC分别为0.678和0.658，临界值分别为35.0度和0.72，比值比分别为3.1和2.5。总之，与AI和LAA相比，CSA是肩袖撕裂的强风险因素。
Distinct anatomic variants of the scapula such as the critical shoulder angle (CSA) were found to be associated with rotator cuff tears (RCTs), but it is undear whether the CSA is a risk factor in Japanese. Here we sought to determine whether the CSA is associated with RCTs in a Japanese population, and whether the CSA is a more useful parameter than the conventionally used parameters. Our RCT group and non-RCT group each consisted of 54 consecutive cases. We compared the groups' values of CSA, the acromion index (AI), and the lateral acromion angle (LAA) obtained by X-ray imaging. Receiver operating characteristic (ROC) analyses were performed to determine cutoff values and the area under the curve (AUC), and to assess the odds ratio. The means of the CSA and the AI in the RCT group were significantly larger (36.3 degrees vs. 33.7 degrees, 0.74 vs 0.68), but the LAA did not show a significant between-group difference. The AUCs for the CSA and AI were 0.678 and 0.658, the cutoff values were 35.0 degrees and 0.72, and the odds ratios were 3.1 and 2.5, respectively. In conclusion, the CSA was a strong risk factor compared to the AI and LAA for rotator cuff tears.