Having said that, if you did a jump-stop and hurt it that way, that is basically what your ACL handles. The forward and backward motion of your knee out of joint. The MCL and PCL handle lateral more or less.
Me? I would opt for seeing a doctor first. It'll snow again, but your ligaments won't regenerate.
Not completely accurate. The PCL holds the tibia from moving backwards. The easy way to know what the PCL does. If your sitting in an office chair. When you use your legs to pull your self forward the PCL will hold the Tibia in place. Or...as I did. When you have a 100% tear in the PCL and you try to walk up a flight of stairs. Each step will pop the tibia out the back of your leg in the most painful way!
I tore my PCL on my right leg and damaged my MCL on my left leg. I had surgery on my right leg to repair the PCL and did Prolotherapy on the ACL & MCL on the left leg. If its not a complete tear and only a slight tearing/damage you might want to explore Prolotherapy to repair it. My left knee is stronger then ever now.