Certain maneuvers can check the purpose in the PCL. The most reputable would be the posterior drawer test. While using the knee bent, your healthcare service provider will press the tibia backward; this stresses the PCL. If your PCL is deficient or torn, the tibia will slide also significantly backward, https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/