My right knee sometimes pops to the outside. It strains all the ligaments and muscle in that area. I only happens on occasion, and I can't walk until it pops back. Afterwards, it is sore to walk and to the touch, and really pains me being on my knees for BJJ. I am not sure what the problem is, but I have had it since I was like 14. Are there are braces that would help keep my knee in place, but be comfortable enough to roll in?