Diagnosis

21u-M/7 Ulna, isolated avulsion of the coronoid

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21u-M/7

21u-M/7

An avulsion fragment of the coronoid is part of the anterior capsuloligamentous injury associated with a posterior elbow dislocation.

Small coronoid avulsions do not generally result in elbow instability in the child.

Large coronoid fragments typically occur in conjunction with elbow dislocation and may require fixation.