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Description and Validation of the Anterior Glenoid Angle: A Novel MRI-Based Measure of Glenoid Morphologic Features and Version
Orthopedics ( IF 1.1 ) Pub Date : 2022-07-12 , DOI: 10.3928/01477447-20220706-02
Christopher L. Antonacci , Mina Abdelshahed , Ali Omari , Michael Cutalo , Russell C. Fritz , Frank G. Alberta

The goal of this study was to establish a normal value for, and evaluate the reliability of, a new measurement of glenoid morphologic features using magnetic resonance imaging: the anterior glenoid angle. A total of 90 magnetic resonance imaging scans of patients without shoulder arthritis were reviewed. The anterior glenoid angle of each glenoid was measured by 4 blinded physicians. The images were randomized and measured again. Finally, the Friedman angle was measured on the same images for reference. Descriptive statistics and inter- and intraclass correlation coefficients were calculated. The mean anterior glenoid angle was 60.4°±3.6°. Of the measured values, 77% were between 56° and 64°. Intraobserver reliability was very good to excellent in single measure (range, 0.763–0.901) and mean measure (range, 0.865–0.948) comparisons. Interobserver reliability was very good to excellent in both single measure (0.769) and mean measure (0.964) comparisons. The mean Friedman angle was 10.2°. Correlation between the anterior glenoid angle and Friedman angle ranged from a moderate negative (−0.496) to a strong negative correlation (−0.711) among the observers. The mean anterior glenoid angle measured via magnetic resonance imaging scan was 60.4° in normal shoulders, and more than 75% of the values were within 4° of the mean. The anterior glenoid angle has excellent inter- and intrarater reliability without using computed tomography scan or including the entire scapula in the field of view. The anterior glenoid angle has a good to very good negative correlation with the Friedman angle because decreasing anterior glenoid angles indicate increasing retroversion. [Orthopedics. 20XX;XX(X):xx–xx.]



中文翻译:

关节盂前角的描述和验证:一种基于 MRI 的关节盂形态学特征和版本的新型测量

本研究的目的是为使用磁共振成像的关节盂形态学特征的新测量值建立正常值并评估其可靠性:前关节盂角。共审查了 90 例无肩关节炎患者的磁共振成像扫描。每个关节盂的前关节盂角度由 4 名不知情的医生测量。图像被随机化并再次测量。最后,在相同的图像上测量弗里德曼角以供参考。计算了描述性统计数据和类间和类内相关系数。平均前关节盂角为 60.4°±3.6°。在测量值中,77% 在 56° 和 64° 之间。在单一测量(范围,0.763-0.901)和平均测量(范围,0.865-0.948)比较中,观察者内部可靠性非常好。在单一测量 (0.769) 和平均测量 (0.964) 比较中,观察者间的可靠性非常好。平均弗里德曼角为 10.2°。在观察者中,前关节盂角和弗里德曼角之间的相关性从中度负相关 (-0.496) 到强负相关 (-0.711)。正常肩部通过磁共振成像扫描测量的平均前关节盂角为 60.4°,超过 75% 的值在平均值的 4° 以内。在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 平均弗里德曼角为 10.2°。在观察者中,前关节盂角和弗里德曼角之间的相关性从中度负相关 (-0.496) 到强负相关 (-0.711)。正常肩部通过磁共振成像扫描测量的平均前关节盂角为 60.4°,超过 75% 的值在平均值的 4° 以内。在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 平均弗里德曼角为 10.2°。在观察者中,前关节盂角和弗里德曼角之间的相关性从中度负相关 (-0.496) 到强负相关 (-0.711)。正常肩部通过磁共振成像扫描测量的平均前关节盂角为 60.4°,超过 75% 的值在平均值的 4° 以内。在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 496) 与观察者之间的强负相关 (−0.711)。正常肩部通过磁共振成像扫描测量的平均前关节盂角为 60.4°,超过 75% 的值在平均值的 4° 以内。在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 496) 与观察者之间的强负相关 (−0.711)。正常肩部通过磁共振成像扫描测量的平均前关节盂角为 60.4°,超过 75% 的值在平均值的 4° 以内。在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[ 在不使用计算机断层扫描或在视野中包括整个肩胛骨的情况下,前关节盂角具有出色的评估者间和评估者内可靠性。前关节盂角与 Friedman 角呈良好到非常好的负相关,因为前关节盂角度减小表明后倾增加。[骨科。20XX;XX(X):xx–xx.]

更新日期:2022-07-12
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