Schoch Bradley, Smitherman Adam, Horodyski Mary Beth, Struk Aimee, King Joseph J, Farmer Kevin W, Wright Thomas
Orthopaedic Surgery, Mayo Clinic, Jacksonville, USA.
Orthopaedics and Rehabilitation, University of Florida, Gainesville, USA.
Cureus. 2019 Dec 29;11(12):e6501. doi: 10.7759/cureus.6501.
Introduction Shoulder subluxation is a common finding associated with orthopedic pathology. This study assesses the inter- and intra-observer reliability of a new radiographic sign used to identify glenohumeral subluxation. Methods Shoulders of 55 consecutive patients presenting with shoulder pain were reviewed for the presence of a "V-sign". Three shoulder surgeons reviewed all radiographs at three separate time periods in a randomized fashion. Inter- and intra-observer reliabilities were calculated. Results The V-sign was identified in 26 (47%) shoulders. Intra-rater reliability was satisfactory for all the three surgeons, with kappa values of 0.85, 0.78, and 0.77, respectively. Inter-rater reliability was similarly satisfactory, with a value of 0.71. The surgeons demonstrated 100% agreement on the direction of subluxation when a V-sign was documented. Discussion The V-sign is a reproducible radiographic sign that can be used to detect glenohumeral subluxation in patients presenting with shoulder pain.
引言
肩关节半脱位是与骨科病理相关的常见表现。本研究评估一种用于识别肩肱关节半脱位的新影像学征象在观察者间和观察者内的可靠性。
方法
对连续55例因肩部疼痛就诊患者的肩部进行检查，以确定是否存在“V征”。三位肩部外科医生在三个不同时间段以随机方式查看所有X线片。计算观察者间和观察者内的可靠性。
结果
在26例（47%）肩部发现了V征。三位外科医生的观察者内可靠性均令人满意，kappa值分别为0.85、0.78和0.77。观察者间可靠性同样令人满意，值为0.71。当记录到V征时，外科医生在半脱位方向上的一致性为100%。
讨论
V征是一种可重复的影像学征象，可用于检测肩部疼痛患者的肩肱关节半脱位。
