Which finding is most strongly associated with septic arthritis?

Which finding is most strongly associated with septic arthritis?

• A. Joint warmth
• B. Effusion
• C. Fever and/or chills
• D. Loss of motion

Answer: (C)

Septic arthritis is a joint infection that triggers both local joint inflammation and a systemic illness. The finding most strongly associated is fever and/or chills because infection provokes a systemic inflammatory response, producing temperature elevation and episodes of chills. This systemic feature helps differentiate from noninfectious causes of joint swelling, where fever is less common. Local signs like warmth, effusion, and limited range of motion reflect the joint’s swelling and pain but can occur in inflammatory or mechanical joint conditions without infection. Fever raises clinical concern for septic arthritis and often prompts urgent joint aspiration and culture. Remember that not all patients have fever, but its presence significantly increases the likelihood of septic arthritis.

Septic arthritis is a joint infection that triggers both local joint inflammation and a systemic illness. The finding most strongly associated is fever and/or chills because infection provokes a systemic inflammatory response, producing temperature elevation and episodes of chills. This systemic feature helps differentiate from noninfectious causes of joint swelling, where fever is less common. Local signs like warmth, effusion, and limited range of motion reflect the joint’s swelling and pain but can occur in inflammatory or mechanical joint conditions without infection. Fever raises clinical concern for septic arthritis and often prompts urgent joint aspiration and culture. Remember that not all patients have fever, but its presence significantly increases the likelihood of septic arthritis.