[Anatomy_09] Medial Meniscus Posterior Root -01

 

The posterior root of the medial meniscus(Red) commences just lateral to the apex of the medial tibial plateau.

The yellow line demonstrates where the cartilage of the medial tibial plateau ceases which is another marker for the beginning of the meniscal root.

The root attaches along the downward slope of the intercondylar fossa medial and anterior to the posterior cruciate ligament.

 

The medial meniscus posterior root is the least mobile of the meniscal roots and provides stability to the knee against external rotation and lateral translation of the tibia.

 

Note this demonstrates posterior root attachment of lateral meniscus.

 

The lateral meniscus posteriorly comes up high over the tibial spine to insert near the posterior cruciate ligament.

This upward position of the posterior horn may be the reason for the higher signal intensity of the posterior horn in all planes due to the magic angle effect.

It's not a real patient's MRI, but they are virtual images very similar to the images in the journals. The images will be created for educational purposes.

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