Morbidity and mortality of fragility proximal humerus fractures: a retrospective cohort study of patients presenting to a level one trauma center.

Purpose: Fragility fractures are a significant source of morbidity and have high associated mortality. Identifying risk factors for poor outcomes is essential for guiding treatment and for setting expectations for patients and their families. Although fragility hip fractures have been abundantly explored, there is a paucity of information regarding proximal humerus fractures (PHFs).