Abstract
Isolated traumatic posterior dislocation of the radial head without fracture of the ulna is extremely rare in adult. There have been only a report of 8 cases which described the same dislocation, but 4 reports of those weren't completely diagnosed at the first episode.
A 56-year old right-handed woman complained of pain and limited range of motion of the left elbow after falling down a flight of stairs. We diagnosed our patient as dislocation at first visit by proper X-ray imaging technique. Thus immediate manual reduction was made and the range of motion exercise was started in the early stage. This case kept good range of motion.
We conclude that it should be careful to assess radiological findings for diagnosis at first visit, otherwise dislocation may cause articular contracture.
