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本文报告１８７例（２２３侧）膝关节半月板ＣＴ诊断，其中５１例（５７侧膝关节）有手术对照。我们认为正确的ＣＴ扫描技术和对膝关节正常横断面解剖的熟悉是半月板损伤ＣＴ诊断的关键。半月板撕裂的直接ＣＴ表现有：（１）半月板内裂隙痕；（２）边界不清的局限性密度减低；（３）半月板体积膨大，边缘毛糙；（４）撕裂的半月板碎片移位；（５）内侧半月板中部与内侧副韧带分离。间接表现有：（１）周围软组织肿胀；（２）滑膜增厚；（３）关节囊内积液。本组手术病人中有５例假阳性，２例假阴性，本文对其原因作了分析。
This article reports 187 cases (223 side) of the knee meniscus CT diagnosis, 51 cases (57 sides of the knee) surgery control. We think the correct CT scan technique and familiarity with normal cross-sectional anatomy of the knee are the key to CT diagnosis of meniscus injury. Direct CT manifestations of meniscus tear are: (1) crevices in the meniscus; (2) reduced density of marginalized densities; (3) swelling of the meniscus with rough edges; (4) torn meniscus Debris shift; (5) the medial meniscus and medial collateral ligament separation. Indirect performance are: (1) surrounding soft tissue swelling; (2) thickening of the synovium; (3) intra-articular effusion. This group of surgical patients, 5 cases of false positives, 2 false negatives, this paper analyzed the causes.