The posterolateral corner of the knee is the region on the outer aspect, towards the back of the knee.

posterolateral corner
The anatomy of the posterolateral corner is complex, and repair of any damage remains the domain of only an expert surgeon.


The importance of the posterolateral corner

Important PLC structures include:

  • lateral meniscus
  • popliteus tendon
  • popliteofibular ligament
  • lateral collateral ligament
  • posterior cruciate ligament
  • arcuate ligament

Injuries are commonly impact in causation, especially if the knee is hyper-extended (bent backwards). Usually there is an associated injury to the anterior or posterior cruciate ligament (ACL or PCL), but repair of these ligament injuries may fail unless the surgeon addresses damage to other posterolateral corner structures.


Posterolateral corner

A brief overview of the anatomy in this important part of the knee.

Who's Who in posterolateral corner surgery

Knee surgeons with a special interest in the posterolateral corner. List compiled by the Editor.

An 'interpretation' of a 2006 medical article outlining the important anatomy of the important posterolateral corner of the knee, and the surgical procedures that are relevant there.

An 'interpretation' of a 2004 medical publication explaining the complex anatomy of the very difficult posterolateral corner - an area where injuries are often missed by doctors.

An 'interpretation' of a paper published in 2000 that explains the anatomical basis of certain multi-ligament injuries of the knee.




Current Concepts of Posterolateral Corner Injuries of the Knee. Shon O-J, Park J-W and Kim B-J. Knee Surg Relat Res. 2017 Dec; 29(4): 256–268.

Posterolateral Corner of the Knee: Current Concepts. Chahla J, Moatshe G, Dean CS and LaPrade RF. Arch Bone Jt Surg. 2016 Apr; 4(2): 97–103.

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