膝关节半月板桶柄状撕裂的MRI诊断

目的分析膝关节半月板桶柄状撕裂的MRI表现特点。方法对16例膝关节半月板桶柄状撕裂的MRI特点,包括双后交叉韧带征、双前交叉韧带征、半月板反转征、空领结征、碎块内移征、外周残半月板征进行回顾性总结分析。结果 16例半月板桶柄状撕裂中,双后交叉韧带征8例;双前交叉韧带征2例,碎块内移征16例,外周残半月板征16例,16个可见空领结征,3例可见半月板翻转征。结论半月板桶柄样撕裂在MRI上具有特征性表现,可作为半月板桶柄样撕裂的一种有效的影像学检查手段。

MR imaging of bucket-handle tears of menisci of the knee

Objective：To analyze the MRI manifestation of bucket-handle tears of menisci of the knee.Materials and Methods：Sixteen patients with bucket-handle tears of menisci of the knee were studied with MRI.All the signs were summarized and analyzed,including double posterior cruciate ligament sign,double anterior cruciate ligament sign,flipped meniscus sign,absent bow tie sign,internal displaced fragment sign and abnormal circumferential meniscus sign.Results：Of 16 cases,the double posterior cruciate ligament signs were seen in 8 cases,the double anterior cruciate ligament signs were seen in 2 cases,the internal displaced fragment signs were seen in 16 cases,the abnormal circumferential meniscus signs were seen in 16 cases,the absent bow tie signs were seen in 16 cases,and the flipped meniscus signs were seen in 3 cases.Conclusion：Bucket-handle tears of menisci of the knee has some characteristic manifestations on MRI.MRI is an effective examination method to bucket-handle tears of menisci of the knee.