Lateral Collateral Ligament (LCL)



  • In this episode: Lateral collateral ligament (LCL) injuries are rare. It is a round thick ligament on the outside of the knee. There is almost no data surrounding injuries to it in isolation. Even when a horrific injury like a knee dislocation occurs the LCL is often not completely ruptured.

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  • Trivia question of the week @ (09:18): Which Dutch artist painted “Girl with a Pearl Earring”?

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Brief overview of the episode:

            Lateral collateral ligament (LCL) is a thick round ligament on the outside of the knee. It is comparable in size to a pencil or your pinky finger. It is the least injured ligament of the knee. LCL injuries are rare occurring so infrequently that there is very little data available regarding their rate of occurrence.

            LCL injuries occur as a result of high velocity force applied to the inside of the keep causing a varus (outward) stress to the lateral knee. Essentially this causes the two bones, tibia and femur, to move away from each other damaging the ligament.

            In most cases where the LCL is damaged there are additional injuries. These could include, meniscus, other ligaments of the knee, fracture, blood vessels and the posterior lateral corner of the joint capsule. In most cases these other injuries will be more limiting and will more often then not dictate the treatment that follows.

Other episodes you might enjoy:  

Medial Collateral Ligament (MCL): Episode 110

Meniscus Injury: Episode 39

ACL Recovery: Episode 13


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