Patellar tendonitis, often known as jumper’s knee, influences the tendon connecting the kneecap to the shinbone. It truly is prevalent among the athletes such as badminton gamers.  The best way to diagnose a PCL tear is to look at the knee for posterior sag at ninety degrees of knee flexion https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/