What is LCL sprain?

The lateral collateral ligament (LCL) is the ligament located in the knee joint. Ligaments are thick, strong bands of tissue that connect bone to bone. The LCL runs along the outside of the knee joint, from the outside of the bottom of the thighbone (femur) to the top of the lower-leg bone (fibula).

More About LCL Injury

The LCL helps keep the knee joint stable, especially the outer aspect of the joint. An injury to the LCL could include straining, spraining, and partially or completely tearing any part of that ligament.

According to Orthogate, the LCL is one of the more commonly injured ligaments in the knee. Because of the location of the LCL, it’s common to injure the LCL along with other ligaments in the knee.