The posterior oblique ligament is a structure that considered by some to be part of the medial collateral ligament and by others to be a ligament in its own right.

Posteromedial corner
The posterior oblique ligament (POL) together with other structures of the posteromedial corner.


Function of the Posterior Oblique Ligament

It helps to prevent the tibia from sliding too far backwards, and is an important restrained when the posterior cruciate ligament is damaged.


Multiligament instability of the knee

An overview of the types of multiligament instability seen in the knee.

An interpretation of a published medical article on the posteromedial corner of the knee.



The role of the posterior oblique ligament in controlling posterior tibial translation in the posterior cruciate ligament-deficient knee. Petersen W, Loerch S, Schanz S, Raschke M and Zantop T. Am J Sports Med. 2008 Mar;36(3):495-501. doi: 10.1177/0363546507310077. Epub 2008 Jan 8.

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