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- For ulnar deviation as a type of hand movement, see Ulnar deviation under Anatomical terms of location.
Ulnar deviation, also known as ulnar drift, is a hand deformity in which the swelling of the metacarpophalangeal joints (the big knuckles at the base of the fingers) causes the fingers to become displaced, tending towards the little finger. Its name comes from the displacement toward the ulna (as opposed to radial deviation, in which fingers are displaced toward the radius). Ulnar deviation is likely to be a characteristic of rheumatoid arthritis, more than of osteoarthritis.
ulnar deviation is also a physiological movement of the wrist, where the hand including the fingers move towards the ulna.
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- This page was last modified on 11 July 2007, at 09:35.
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