Septic Arthritis in HIV-Infected Patients

Risk Factors and Clinical Presentation

HIV infection creates multiple layers of vulnerability through pre-existing immune system activation and exhaustion, increased susceptibility to invasive infections, and dysregulated host response to infection, according to the World Journal of Emergency Surgery 1
The severity of immunocompromise directly correlates with unreliability of clinical presentation, as stated by a medical guideline society 2

Immunocompromised patients may present with attenuated or atypical clinical signs, making diagnosis more challenging, and laboratory values may not accurately reflect clinical severity, as noted by the World Journal of Emergency Surgery 1
The American College of Emergency Physicians recommends that synovial fluid studies are mandatory to confirm diagnosis and identify the causative organism, although the exact recommendation is not provided in the article 1
A medical guideline society suggests that do not rely solely on clinical examination—immunocompromised patients may lack typical inflammatory signs despite severe infection 1, 2