Do they make any braces for dirt bikes so your knees don't come out of socket when you crash, I just popped my knee put and tore my MCL?
Why yes, they do make knee braces for motocross. BTW, no mc safety gear comes with a guarantee that it will protect you in every possible crash. https://www.youtube.com/watch?v=tvMc0sTNc7M
You can get sports braces from your local friendly drug dealer (Pharmacist, not the dude in the hoodie at the end of your street)
Are asking about on the bike or yourself? There are store bought elastic guards that you pull-on over your knees and there are specially braces with metal reinforcement rods too. There are bike-made guards for street bikes but for the dirt is a different story.
If you have torn your mcl you will not be riding for some months.
None that I know of...