Unstable radial tear posterior root of medial meniscus (RID2777) with subchondral fracture ( RID4695 )
Commonly seen together. Unstable meniscus tear which results in loss of hoop containment of the meniscus and results in abnormal forces across the compartment. A stress or insufficiency fracture can result as in this case. Note the ghost meniscus sign indicating a radial tear. Also note the well defined medullary fracture line. Nice discussion included. [ Article ]
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