The humeral component remains securely fixed, and the shoulder joint is usually stable. The principles of fracture treatment are similar to those used for metaphyseal and diaphyseal humeral fractures without a shoulder replacement in situ.
The humeral shaft fracture occurs as a result of:
Plain x-rays, including orthogonal AP and lateral views will show the fracture. CT may be indicated to assess the medullary dimension for revision implantation and fracture management.