Ulnar deviation
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Potkettle
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Removing duplicated information
:''For ulnar deviation as a type of hand movement, see [[anatomical terms of motion|Ulnar deviation under Anatomical terms of location]].''
'''Ulnar deviation''', also known as '''ulnar drift''', is a hand deformity in which the swelling of the [[metacarpus|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 (bone)|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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