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Isolated posterior dislocation of the head of the radius in an adult. A case report.

A case of isolated posterior dislocation of the head of the radius is presented. It is a rare entity and, to our knowledge, only 3 adult cases have been published. The mechanism responsible is a fall on the hand with the elbow semiflexed and pronated. A simple reduction is made after an early diagnosis. After a short period in a cast, complete recovery can be expected.