Anyone here ever had to use a knee brace due to acl problems? I tore mine 30+ years ago and it's gotten to the point that I am barely able to hobble around some days. It just "popped" one day and the last couple of weeks have been hell. Surgery is out of the question at this point. I can't afford to spend a fortune for a brace, but am just curious to see if anyone has used something fairly affordable that actually helped stabilize your knee.