Baumann's angle (α).
Reproduced with permission from: Beaty JH, Kasser JR. Evaluation of Pediatric Distal Humeral Fractures. In: Rockwood and Wilkins' Fractures in Children, 8th ed, Flynn JM, Skaggs DL, Waters PM (Eds), Lippincott Williams & Wilkins 2014. Copyright © 2014 Lippincott Williams & Wilkins.
www.lww.com.