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Lateral Collateral Ligament (LCL)

What is Lateral Collateral Ligament (LCL) injury?

The lateral collateral ligament (LCL) is a ligament located on the outer side of the knee and connects the femur (thigh bone) to the fibula (shin bone). The purpose of the LCL is to help keep the knee joint stable, especially on the outside. Injuries to the LCL range a sprain (grade I), partially rupture (grade II) to complete rupture of the ligament (grade III). This injury accounts for 7-16% of all knee ligament injuries.


Medial Collateral Ligament (MCL)

What is Medial Collateral Ligament(MCL)?

A Medial Collateral Ligament (MCL) injury is sprain or tear of the MCL. This ligament is a band of tissue that connects the femur (thighbone) to the lower leg (tibia) on the inside of the knee. The primary function of the MCL is to prevent the knee from bending inwards, also known as a valgus force. The ligament also helps increase the stability of the knee joint.