MRI diagnosis of reverse and separation of meniscus articular capsule
- VernacularTitle:半月板关节囊分离并反转的MRI诊断
- Author:
Xiaofeng TANG
;
Chengtao ZHOU
;
Renqi MU
;
Guanghui ZHANG
;
Yongzhong XU
- Publication Type:Journal Article
- Keywords:
Meniscus, tibia;
Knee injuries;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
2001;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the MR imaging of reverse and separation of meniscal articular capsule.Methods MR imaging of reverse and separation of meniscus articular capsule confirmed by surgery and arthroscope were analyzed retrospectively in 8 cases.Results The “Butterfly knot sign” disappeared and was replaced with fluid signal on the sagittal slice of meniscal body in 8 cases. Part of back angle remained in 3 cases. “Double anterior cruciate ligament sign” was showed on one side of middle sagittal slice in 7 cases. “Reverse meniscus sign” was revealed in intercondylar fossa on the coronary view in ~8 cases. Abnormal high signal was showed in the injured meniscus in 6 cases. Abnormal high signal was detected in the opposite meniscus in 5 cases.Conclusion The MR findings of reverse and separation of meniscus articular capsule include disappearance of “butterfly knot sign”, appearance of “reverse meniscus sign” and “double anterior cruciate ligament sign”. The diagnosis would be established if the former 2 signs were present or all the 3 signs were present simultaneously.
