Inferiorly displaced flap tears of the medial meniscus: MR appearance and clinical significance

OBJECTIVE. We describe the MR imaging features of medial meniscus flap tear s in which the fragment becomes located inferomedial to the tibial plateau and deep in relation to the medial collateral ligament. CONCLUSION. inferior flap rears of the medial meniscus can be inconspicuous and overlooked by both radiologists and orthopedic surgeons. inferiorly di splaced meniscal fragments may escape detection during arthroscopic surgery unless the fragment is sought with a probing hook. Recognition of this men iscal abnormality on MR imaging is important for preoperative planning.