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Two cases of discitis due to Propionibacterium acnes
J Crouzet1, P Claudepierre, E H Aribi
1Rheumatology Department, Corbeil Hospital, Corbeil, France.
Summary
Propionibacterium acnes (P. acnes) can cause serious bone and joint infections like discitis, even in healthy individuals. This anaerobic skin bacterium is linked to spontaneous or trauma-related infections, and potentially SAPHO syndrome.
Area of Science:
- Infectious Diseases
- Microbiology
- Orthopedics
Background:
- Propionibacterium acnes (P. acnes) is an anaerobic bacterium commonly found on the skin.
- While typically commensal, P. acnes can cause various infections, including osteomyelitis and discitis.
- This study investigates P. acnes as a causative agent in bone and joint infections.
Observation:
- Two cases of discitis caused by P. acnes are presented.
- A review of existing literature on P. acnes bone and joint infections was conducted.
- Most affected patients were immunocompetent.
Findings:
- P. acnes can lead to discitis, osteitis, arthritis, and chest wall osteitis.
- Infections can be spontaneous or secondary to skin breaches or foreign material implantation (e.g., fractures, arthroplasty).
- P. acnes involvement in chest wall infections is noted in patients with palmoplantar pustulosis or chronic osteitis, suggesting a role in SAPHO syndrome.
Implications:
- Highlights P. acnes as an underrecognized pathogen in bone and joint infections.
- Suggests considering P. acnes in the differential diagnosis of discitis and osteomyelitis, especially in immunocompetent individuals.
- Supports the association between P. acnes and SAPHO syndrome, warranting further investigation.
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