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. 2018 Feb 7;476(7):1540–1543. doi: 10.1007/s11999.0000000000000072

Fig. 1.

Fig. 1

The Regan-Morrey classification stratifies coronoid fractures based on coronoid fragment size on a single lateral radiograph of the elbow. (Published with permission from Springer from Samii A, Zellweger R. Fractures of the coronoid process of the ulna: which ones to fix and which ones to leave alone: a review. Eur J Trauma Emerg Surg, 2008;34:113-119.)