What does the pcl do in the knee?

The posterior cruciate ligament (PCL) is one of the key ligaments in the knee that helps stabilize the joint by preventing the tibia (shinbone) from sliding too far backward relative to the femur (thighbone). It plays a crucial role in maintaining knee stability during activities that involve bending and straightening the knee, as well as during weight-bearing movements. Additionally, the PCL works in conjunction with the anterior cruciate ligament (ACL) to control rotational movements of the knee. Overall, the PCL is essential for proper knee function and stability.