My daughter dislocated her knee and had to have surgery because she tore one of the ligaments that holds the kneecap in place. She plays softball, I was wondering if they make a knee brace (not hinged because of sliding) that is opened in the back? Do they make such a thing or do you recommend something else? She has to wear the brace when she plays. The one she has now is closed in the back and it rubs her raw when she plays.