Liotard J P, Cochard P, Walch G
Centre Médico-Chirurgical Interdépartemental, Hauteville, France.
J Shoulder Elbow Surg. 1998 Mar-Apr;7(2):134-9. doi: 10.1016/s1058-2746(98)90223-3.
The supraspinatus outlet view has been standardized under fluoroscopic control to become reproducible and comparable; it is the normalized scapular Y-view. Four hundred four healthy shoulders from patients 20 to 80 years old and 63 shoulders with rotator cuff tears underwent x-ray evaluation and were compared. A qualitative study was carried out on the shape of the acromion in relation to Bigliani's types (I, II, III and on the presence or absence of a bony spur on the anterior part of the acromion. Quantitative measurements were determined; the subacromial peak and the spinoacromial angle were assessed for a statistical comparison among the various populations. The acromions of healthy shoulders varied with age (8% type III in patients younger than 60 years, 27% in those older than 60 years), although not significantly. The dominant side and sex of the subjects had no effect. With 29% type III acromions the shoulders with cuff tears differed from those of the healthy shoulders (14% type III). No close correlation was seen between type III acromions and cuff ruptures. The quantitative values of the acromions had no predictive value for cuff rupture. Acromion typology failed to confirm that a type III acromion was responsible for rotator cuff rupture. Spurs are found in increasing incidence with age and in the presence of cuff rupture; whether they are caused by subacromial impingement or by natural aging of the acromion is uncertain.
冈上肌出口位片已在透视控制下实现标准化，从而具有可重复性和可比性；它是标准化的肩胛Y位片。对404例年龄在20至80岁的健康肩部以及63例肩袖撕裂的肩部进行了X线评估并进行比较。针对肩峰形状与比利亚尼分型（I型、II型、III型）的关系以及肩峰前部是否存在骨赘进行了定性研究。进行了定量测量；评估了肩峰下峰值和棘肩峰角，以便在不同人群之间进行统计学比较。健康肩部的肩峰随年龄变化（60岁以下患者中III型占8%，60岁以上患者中占27%），尽管差异不显著。受试者的优势侧和性别没有影响。肩袖撕裂的肩部中III型肩峰占29%，与健康肩部（14%为III型）不同。III型肩峰与肩袖撕裂之间未发现密切相关性。肩峰的定量值对肩袖撕裂没有预测价值。肩峰分型未能证实III型肩峰是导致肩袖撕裂的原因。骨赘的发生率随年龄增长以及肩袖撕裂的存在而增加；它们是由肩峰下撞击引起还是由肩峰的自然老化引起尚不确定。
