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Septic arthritis
1Universidad Complutense de Madrid, Spain.
Bailliere'S Best Practice & Research. Clinical Rheumatology
|August 23, 2000
Summary
Septic arthritis, a joint infection, is often caused by Staphylococcus aureus. Early diagnosis via synovial fluid analysis and prompt antibiotic treatment are crucial for effective management and preventing cartilage damage.
Area of Science:
- Orthopedics
- Infectious Diseases
- Microbiology
Background:
- Septic arthritis involves direct joint invasion by pathogens, triggering inflammatory responses and cartilage degradation.
- Staphylococcus aureus is the most common causative agent, with a notable decrease in gonorrhoea-related cases due to HIV epidemic-driven behavioral changes.
Purpose of the Study:
- To outline the diagnostic and therapeutic strategies for septic arthritis.
- To highlight the role of microbial invasion in joint inflammation and cartilage damage.
Main Methods:
- Diagnosis relies on clinical symptoms, imaging (scintigraphy, MRI), and synovial fluid analysis.
- Definitive diagnosis requires pathogen isolation and culture from synovial fluid, ideally inoculated into blood culture bottles.
- Treatment involves empirical antibiotics, adjusted based on culture results, followed by intravenous and oral regimens.
Main Results:
- Staphylococcus aureus is the predominant pathogen.
- Changes in sexual behavior linked to the HIV epidemic have influenced the incidence of gonorrhoea as a cause.
- Combined intra-articular steroids and antibiotics show promise in reducing joint damage.
Conclusions:
- Prompt diagnosis and appropriate antibiotic therapy are essential for managing septic arthritis.
- Effective joint drainage through aspiration, arthroscopy, or surgery is a key component of treatment.
- Emerging strategies, including the co-administration of intra-articular steroids and antibiotics, aim to mitigate articular damage.