My fiance has been dealing with scoliosis for a long time, and we'd like to find a good back brace for her to help alleviate the constant pain. However, she has a very small waist (18"-20") and I haven't been able to find anything near her size, even in childern's sizes. We've scoured the Internet and yet nothing has come up. I find it hard to believe that she's the smallest woman in the entire world with scoliosis or back problems! Any thoughts or suggestions would be very much appreciated.