Fig: Sagittal PD image of the knee shows 'double PCL sign'. Note the 'extra' dark band (arrows) beneath the true posterior cruciate ligament (arrowheads). This dark band represents 'bucket-handle tear of meniscus'. Joint effusion is marked by a red star.
Double PCL Sign
- Displaced fragment of meniscus in the intercondylar notch of the knee, resembling two posterior cruciate ligaments (PCL)
- Sign of bucket-handle meniscal tear
- Usually tear occurs in young active person
- Medial meniscus > lateral meniscus
- Confirmation on coronal image that shows displaced fragment in the notch
- Look for concomitant chronic ACL tear
Stoller DW, et al. Diagnostic imaging: orthopedics. 2004
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