Hmmm . . . not exactly sure what you're describing. The ulna & radius should move in concert, not in different directions. On the other hand, ulnar drift/deviation refers to a change in the positioning of the fingers relative to the hand/arm. This is a common finding in patients w/severe rheumatoid arthritis. I would encourage you to see a pain specialist regarding your reflex sympathetic dystrophy (also known as complex regional pain syndrome). Good luck!
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