Do you have a chiropractor who is also a kinesiologist in your area? My family has had so many injuries of this type in sports and life in general and we've had amazing results. I've also found that using the fingerless gloves sold at JoAnn's are wonderful if I'm going to be doing any repetitive activities. I do need new ones. Mine are very coral colored from painting the trim on my house. In your case, I might even sleep in one. Because they are lightweight, they aren't very confining. I've seen them in senior health catalogs, too. I hope you can find help. Giving up quilting is serious!
edit: That's the brand of gloves I have. Thank you, Jacquie