Posterior double PCL sign: a case report of unusual MRI finding of bucket-handle tear of medial meniscus.
Among the MRI signs of bucket-handle tears of medial meniscus, double posterior cruciate ligament (PCL) sign denotes a low signal band anterior and parallel to the PCL, which looks like another PCL in MR images. If the bucket-handle fragment subsequently tears at the anterior horn, the torn meniscal substance can be displaced to the posterosuperior region of the PCL, and looks like another PCL behind the original PCL. We propose the lesion be called the "posterior double PCL sign" in contrast to the ordinary double PCL sign. We present a case showing the posterior double PCL sign.
Yoo
Jae Ho
JH
Department of Orthopaedic Surgery, National Police Hospital, 58, Garakbon-dong, Songpa-gu, Seoul 138-161, South Korea. jadeboykr@gmail.com
Hahn
Sung Ho
SH
Yi
Seung Rim
SR
Kim
Seong Wan
SW
D000328:Adult; D001182:Arthroscopy; D006801:Humans; D007718:Knee Injuries / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D016119:Posterior Cruciate Ligament / Q000473:pathology; D000070600:Tibial Meniscus Injuries