Silva I, Silver D M
Orthopaedic Hospital, Los Angeles, California.
J Bone Joint Surg Am. 1988 Feb;70(2):199-202.
Forty-four patients who were examined by magnetic resonance imaging and arthroscopy to detect tears of the meniscus of the knee were studied. Twenty-eight patients (Group I) had had no previous operations on the knee. Sixteen patients (Group II) had had a previous operation on the knee that had been performed after a meniscal injury. In Group I, the percentage of correct diagnoses by magnetic resonance imaging was 45 per cent. If the false-negative results are excluded, the rate of accuracy was 65 per cent. Similarly poor results were found in Group II: a rate of accuracy of 49 per cent and, if we eliminate the false-negative results, the rate of accuracy was only 55 per cent.
对44名接受磁共振成像和关节镜检查以检测膝关节半月板撕裂的患者进行了研究。28名患者（第一组）此前未接受过膝关节手术。16名患者（第二组）此前因半月板损伤接受过膝关节手术。在第一组中，磁共振成像的正确诊断率为45%。如果排除假阴性结果，准确率为65%。在第二组中也发现了类似的不佳结果：准确率为49%，如果我们排除假阴性结果，准确率仅为55%。
