Hardy D C, Vogler J B, White R H
AJR Am J Roentgenol. 1986 Sep;147(3):557-61. doi: 10.2214/ajr.147.3.557.
The shoulder impingement syndrome is believed to be caused by compression of the rotator cuff tendons and subacromial bursa between the humeral head and structures that make up the coracoacromial arch. Plain film findings were tabulated for 36 patients, 22-81 years old, who had signs and symptoms of an acute impingement syndrome. The most common radiographic abnormalities were subacromial bony proliferation in 68%, degenerative changes in the greater tuberosity of the humerus in 66%, and degenerative joint disease in the acromioclavicular joint in 66%. There was evidence of calcium deposition in the rotator cuff in 37%, inferiorly oriented acromioclavicular osteophytes in 32%, and degenerative changes of the lesser humeral tuberosity in 29%. The acromiohumeral space was narrowed in only 21%. The radiographic findings were scored blindly and compared to the treatment outcome of 6 weeks of medical therapy. There was no statistically significant correlation between any of the radiographic findings and the response to medical therapy. The results suggest that radiographic findings are extremely common in patients with the acute impingement syndrome, but that they are not useful as prognostic indicators of the short-term response to medical treatment.
肩峰撞击综合征被认为是由于肱骨头与构成喙肩弓的结构之间的肩袖肌腱和肩峰下滑囊受到挤压所致。对36例年龄在22至81岁之间、有急性撞击综合征体征和症状的患者的X线平片检查结果进行了列表统计。最常见的影像学异常为：肩峰下骨质增生占68%，肱骨大结节退变占66%，肩锁关节退变性关节病占66%。37%的患者有肩袖钙化沉积的证据，32%有向下的肩锁关节骨赘，29%有肱骨小结节退变。肩峰下间隙变窄的仅占21%。对影像学检查结果进行盲法评分，并与6周药物治疗的结果进行比较。影像学检查结果与药物治疗反应之间均无统计学意义上的相关性。结果表明，影像学检查结果在急性撞击综合征患者中极为常见，但它们作为药物治疗短期反应的预后指标并无用处。
