The knee includes two crescent-formed cartilage structures called menisci, which work as shock absorbers and facilitate clean movement of your joint. Tears during the meniscus or cartilage can develop from unexpected twists, deep squats, or degenerative variations over time.  Severe PCL accidents, Particularly These requiring surgery, have an extended recovery https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/