What are the symptoms of a lateral meniscus tear?

A lateral meniscus tear is an injury to the semi-circular cartilage on the outside of the knee joint. Symptoms include tenderness and pain around the outside surface of the knee. Each knee joint has two crescent-shaped cartilage menisci which cushion and support the knee.

Is the lateral meniscus on the inner side of the knee?

One meniscus is on the inner side of your knee–the medial meniscus. The other meniscus is on the outer side of your knee – the lateral meniscus. Anatomy and attachment[edit| edit source]

Where does the discoid meniscus affect the knee?

Discoid meniscus most often affects the lateral meniscus, which is the on the outside of the knee joint. The menisci are attached to the femur bone by a strong tissue called the meniscofemoral ligament. This ligament also provides a blood supply to a small portion of the meniscus.

Where does the anterior horn of the lateral meniscus attach?

The anterior horn of the lateral meniscus blends into the attachment of the anterior cruciate ligament, whereas the posterior horn attaches just behind the intercondylar eminence, often blending into the posterior aspect of the ACL.

Are there any anomalies in a discoid medial meniscus?

Associated anomalies in a discoid medial meniscus are not uncommon; they include an anomalous insertion of the anterior horn of the medial meniscus into the anterior cruciate ligament (as previously described), meniscal cyst, 26 discoid lateral meniscus in the same knee (Figure 9), 25 and pathologic medial patella plica. 27

Where does the lateral meniscus attach to the knee?

lateral meniscus 1 the anterior horn of the lateral meniscus attaches immediately lateral to the tibial attachment… 2 no attachment to the lateral collateral ligament except anterior horn and posterior most portion… 3 posterior horn of the lateral meniscus attaches to the posterior intercondylar area…

How big is the posterior horn of the meniscus?

In the example shown (Figures 1 and 2), the entire medial meniscus is noted to be diminutive, with the posterior horn measuring 7 mm to 8 mm. No meniscal tear is seen, but the root attachment was also noted to be diminutive (1 mm) with no increased signal to suggest root attachment tear.