10 Wed. Cruciate Ligament Injury / 십자 인대 파열 I once slipped on an icy patch and fell off my bike, injuring my knee. As a result of accident, I tore the posterior cruciate ligament (PCL) in my right knee. Using crutches for the first timein my life and wearing a knee brace was really difficult for me. But what made it even worse was that the doctor didn't offer clear explanations about how much my..