Does anyone have any suggestions? I am willing to try just about anything at this point (short of selling my soul or having to sacrifice a goat or something).[/QUOTE]

Consider going to a certified massage therapist or a Nationally certified Myofascial Trigger Point therapist to release trigger points (knots) in the muscles that move the joints out of place.

Traditional PT can make active trigger points worse. Once the trigger points are deactivated and the range of motion is improved to near normal for a period of 2 weeks - A long muscle isx a strong muscle. Then you can do traditional PT.