半月板桶柄样撕裂的MRI表现

目的 探讨半月板桶柄样撕裂的MRI征象. 资料与方法 对经关节镜证实的半月板桶柄样撕裂56例(58侧)患者的MRI表现进行研究. 结果 领结残破征21膝,空领结征28膝,双前交叉韧带征6膝,双后交叉韧带征19膝,双半月板前角征11膝,前角异常肥大征5膝,双半月板后角征16膝,后角异常肥大7膝,后角残破征19膝,厚饼征6膝,半月板分离移位征53膝.合并膝关节囊积液58膝、股骨(或胫骨)挫伤36膝、内侧副韧带损伤6膝、前交叉韧带损伤5膝、后交叉韧带损伤9膝、关节软骨损伤13膝、骨梗死2膝. 结论 空(残)领结征、后角残破征、双后交叉韧带征及半月板分离移位征提示半月板桶柄样撕裂.

MRI Findings of Bucket Handle Tear of Menisci

Objective To evaluate MRI findings of bucket handle tear of menisci.Materials and Methods MRI findings in 56 cases (58 knees)with bucket handle tear of menisci proved by arthroscopy were analyzed.Results MRI showed bow tie broken sign in 21 knees,empty bow tie sign in 28 knees,double anterior cruciate ligament sign in 6 knees,double posterior cruciate ligament sign in 19 knees,double meniscus anterior angle sign in 11 knees,anterior angle abnormally fat sign in 5 knees,double meniscus posterior angle sign in 16 knees,posterior angle abnormally fat sign in 7 knees,posterior angle broken sign in 19 knees,thick pastry sign in 6 knees,and meniscus separation and displace sign in 53 knees.MRI also demonstated capsule hydrops in 58 knees,bruise of femur or tibia in 36 knees,medial collateral ligament injury in 6 knees,anterior cruciate ligament injury in 5 knees,posterior cruciate ligament injury in 9 knees,cartilage injury in 13 knees,bone infarction in 2 knees.Conclusion Empty or broken bow tie sign,posterior angle broken sign,double posterior cruciate ligament sign,and meniscus separation and displace sign could suggest bucket handle tear of menisci.