PCL tears are graded by the severity of the injury, grade I by means of quality III. The quality is set with the extent of laxity measured during your evaluation. In general, grading of the injury corresponds to the following: When the PCL pulls off a little bit of bone https://www.theorthopaedicandpainpractice.com/what-happens-if-i-injure-my-posterior-cruciate-ligament/