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Fig. 5B —24-year-old man, competitive javelin thrower, who had a
history of ulnar collateral ligament reconstruction 5 years earlier and
recently felt a pop and recurrent pain while throwing. Longitudinal sonogram
obtained at medial elbow with elbow in valgus stress shows marked widening of
joint space (asterisks) between humerus (H) and ulna (U), now
measuring 11.8 mm. Retraction of ligament (arrows) is also
accentuated. Findings indicate complete incompetence of reconstructed ulnar
collateral ligament. Patient had to undergo repeat ligamentous
reconstruction.
