Menisci of the knee

Regarding meniscal injuries of the knee,

1. Posterior horn of the medial meniscus is the most commonly injured meniscus
2. On MRI, the high signal within the menisci has to extend into both parts of articular surfaces to call it a tear
3. Bucket-handle tear is a type of radial tear
4. Bucket-handle tear is more common in the lateral meniscus
5. Meniscal cysts are most commonly associated with horizontal tears

Answers: T, F, F, F, T
Notes: Posterior horn of the medial meniscus is the most commonly injured part of the menisci. The intrasubstance signal change indicated meniscal degeneration. If the high signal reaches at least one articular surface, then it is called a tear (grade 3). Orthoscopically, the meniscal tears are classified as longitudinal, radial and oblique. The bucket-handle tear is a type of longitudinal tear and is 3 times more common in medial meniscus. The meniscal cysts are commonly associated with horizontal tears.
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