Instability: It might experience like your knee is wobbly or unstable, specially when going for walks or bearing excess weight. Injuries into the PCL may lead to a lessened number of motion in the knee. Bending or straightening the knee completely can be challenging and painful. A major PCL injury https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/