Patellar tendonitis, also called jumper’s knee, influences the tendon connecting the kneecap for the shinbone. It really is popular among the athletes including badminton players.  When the PCL pulls off a little bit of bone within the again with the lower leg (tibial avulsion), the PCL might be surgically repaired. https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/