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Painful or failed shoulder arthroplasties are evaluated with serial conventional radiographs. Most of these cases will show radiographic abnormalities. Exceptions include:
- Acutely infected arthroplasties where the diagnosis has been made very early by clinical exam and arthrocentesis, before radiographic abnormalities have developed.
- Intraarticular or adjacent soft-tissue abnormalities that may require advance imaging for optimal evaluation.
Painful or failed arthroplasties may be due to a variety of problems, including:
- Polyethylene problems
- Heterotopic ossification