Fig. 1.

The Neer classification for proximal humeral fractures. Modified figure reproduced, with permission from publisher Wolters Kluwer, from Neer CS II. Displaced proximal humeral fractures. I. Classification and evaluation. J Bone Joint Surg [Am] 1970;52-A6:1077-1089,² and from Brorson S, Eckardt H, Audigé L, Rolauffs B, Bahrs C. Translation between the Neer- and the AO/OTA classification for proximal humeral fractures: do we need to be bilingual to interpret the scientific literature? BMC Res Notes 2013;6:69.⁴