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March 2005
By Theodore E . Keats, MD
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This 20-year-old man injured his wrist in a soccer
game. What is your interpretation of the frontal and
lateral projections of his wrist?
CLICK HERE FOR ANSWER
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ANSWER
The correct diagnosis is Madelung's deformity. This
deformity may be part of a larger skeletal dysplasia,
but it may also occur as a unilateral isolated event
in otherwise normal individuals. The chief findings
are that the carpal angle is increased and the distal
end of the ulna is in a dorsal position. Impaired development
of the ulnar aspect of the radial epiphysis is believed
to be the underlying cause.
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This series of diagnostic quizzes that
challenge your ability to read a variety of X-ray films is
edited by Dr. Keats, alumni professor of radiology at the
University of Virginia School of Medicine in Charlottesville.
Emerg Med 37(3):57, 2005
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