Presentation
Twisting injury.
Patient Data
The MRI sequences demonstrate:
absent bow tie sign of the medial meniscus on the sagittal sequences
double PCL sign on the sagittal sequences: the flipped medial fragment lies anteroinferior to the PCL mimicking a second smaller ligament
double anterior horn/flipped meniscus on sagittal sequences
double delta sign on sagittal sequences
meniscal fragment in the intercondylar notch on coronal sequences
moderate joint effusion
intact ACL and collateral ligaments
Case Discussion
MRI features of a bucket-handle meniscal tear.
Bucket-handle meniscal tears are a type of displaced vertical meniscal tear where the inner fragment is displaced centrally. They more commonly occur in the medial meniscus and are often associated with anterior cruciate ligament (ACL) tears.
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