The LCL (lareral collateral ligament) helps keep your knee joint stable but is located on the outer side of the joint. Most minor LCL injuries heal by themselves in a few weeks or months if they are rested but more serious ones may require surgery.
Usually the injury to the LCL damages another ligament at the same time. In most cases, LCL injury is less serious than injury to other knee tissues, such as the cruciate ligaments. However, in more serious cases the ligament can be partially or completely torn.
Blows to the knee are a common cause of LCL injury but any twisting injury may result in damage. LCL damage is a common sports injury.
Lateral Collateral Ligament Injury