(A) Type I: Avulsion of the tip of the coronoid.
(B) Type II: A single or somminuted fragment involving ≤50 percent of the coronoid process.
(C) Type III: A single or comminuted fragment involving >50 percent of the coronoid process.
Reproduced with permission from: Pring ME, Wenger DR, Rang M. Elbow: Proximal radius and ulna. In: Rang's Children's Fractures, 3rd ed, Lippincott Williams & Wilkins, Philadelphia 2005. Copyright © 2005 Lippincott Williams & Wilkins.
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