The posterior horn of the lateral meniscus is not seen in its expected location and is flipped and displaced anteriorly adjacent to the anterior horn which gives the appearance of Double delta sign. Subchondral high signal intensity in the fluid sensitive sequences is seen in the medial tibial spine denoting subchondral edema likely related to bone contusion.
The medial meniscus, medial collateral ligament and cruciate ligaments are intact. A small amount of joint effusions seen. The extensor mechanism is unremarkable. Normal muscle bulk and signal intensity. Normal bone marrow signal intensity.