Ten questions on prosthetic shoulder infection

Area of Science:

• Orthopedic Surgery
• Infectious Diseases
• Biochemistry

Background:

• Prosthetic shoulder joint infections lead to significant pain and stiffness, impacting patient morbidity.
• Diagnosis is often delayed due to absent clinical signs and normal inflammatory markers.
• Propionibacterium acnes, a common pathogen, requires prolonged incubation for culture, and newer markers lack sensitivity.

Purpose of the Study:

• To outline a structured approach for assessing prosthetic shoulder joint infections.
• To review diagnostic challenges and emerging markers.
• To discuss available treatment options and their associated outcomes.

Main Methods:

• Comprehensive patient assessment including history, physical examination, and serum inflammatory markers.
• Radiological evaluation and aspiration/biopsy for microbiological and biochemical analysis.
• Application of a classification system based on culture, and pre-operative/intra-operative findings.

Main Results:

• A structured diagnostic approach is essential for accurate prosthetic shoulder infection assessment.
• Challenges in culturing Propionibacterium acnes and limitations of current biochemical markers are highlighted.
• A classification system aids in determining infection likelihood.

Conclusions:

• Effective management of prosthetic shoulder infections requires a systematic diagnostic strategy.
• Treatment options range from conservative measures to complex revisions.
• Revision arthroplasty is associated with the most favorable patient outcomes.