Periprosthetic fractures of the humerus and scapula: management and prevention.

The management of humerus fractures is complicated by the presence of a prosthesis. Vigilance in addressing the mechanisms and predisposing factors for periprosthetic fracture may prevent their occurrence. In the event of a periprosthetic fracture, attention to prosthetic stability, fracture location and stability, and bone quality will help guide treatment decisions. Treatment should be commensurate with the goals of fracture stability, early rehabilitation, and maintaining a well-functioning prosthesis.