Patellofemoral pain syndrome or runner’s knee is usually a dull pain across the patella, which happens to be the front of the knee. It is typically triggered Incidentally you walk or run, bad foot help, and abnormal education. The obvious way to diagnose a PCL tear is to look at https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/