Decision-Making and Management of Proximal Humerus Nonunions.

Proximal humerus fracture nonunions are heterogenous group of posttraumatic sequelae in both the operatively and nonoperatively treated proximal humerus fracture. The management of these fractures is largely based on the residual morphology. Understanding the relationship of the nonunited and malunited fragments, anatomic location of the fracture, and viability of the residual bone stock will allow for better surgical planning. Patient optimization with nonoperative care, open reduction internal fixation, intramedullary nailing, and shoulder arthroplasty, all have a role in the treatment of proximal humerus fracture nonunions.