Imhoff A B, Hodler J
Department of Orthopaedic Surgery, Balgrist, University of Zurich.
Bull Hosp Jt Dis. 1996;54(3):146-52.
Rotator cuff tears and instability of the glenohumeral joint are a common cause of chronic shoulder pain and disability. Currently CT arthrography is the method of choice to evaluate the extent of osseous and soft tissue abnormalities. This study was undertaken to determine if magnetic resonance imaging was able to depict post-dislocation abnormalities and rotator cuff pathology and if MRI can replace CT arthrography. Sixty four patients, who were operated on for the first time (arthroscopy or arthrotomy) between November 1986 and July 1991, were compared in a blinded fashion with the results of MR imaging in 40 cases and of CT arthrographies in 24 cases. For the evaluation of rotator cuff tears MRI proved to have a sensitivity of 83.3% and an accuracy of 90.3%. Labral pathology was depicted with a sensitivity of 69.2% and an accuracy of 87.1%. In cases involving a Hill-Sachs lesion the sensitivity of MRI was 90% and the accuracy 95%. MR imaging is an accurate method in the evaluation of rotator cuff pathology and to some extent labral abnormalities.
肩袖撕裂和盂肱关节不稳是慢性肩部疼痛和功能障碍的常见原因。目前，CT关节造影是评估骨和软组织异常程度的首选方法。本研究旨在确定磁共振成像（MRI）能否显示脱位后异常和肩袖病变，以及MRI是否可以替代CT关节造影。对1986年11月至1991年7月间首次接受手术（关节镜检查或切开手术）的64例患者进行了研究，将其结果与40例MRI检查结果和24例CT关节造影结果进行了盲法比较。对于肩袖撕裂的评估，MRI的敏感性为83.3%，准确性为90.3%。盂唇病变的显示敏感性为69.2%，准确性为87.1%。在涉及希尔-萨克斯损伤的病例中，MRI的敏感性为90%，准确性为95%。MRI是评估肩袖病变以及在一定程度上评估盂唇异常的准确方法。
