Septic arthritis

Definition

Septic arthritis is an infection in a joint, caused by bacteria spreading through the bloodstream. It leads to inflammation, pain, and can cause joint damage if not treated promptly.

5 Must Know Facts For Your Next Test

1. Septic arthritis commonly affects large joints like the knee or hip.
2. Staphylococcus aureus is the most common bacterial cause of septic arthritis.
3. Symptoms include severe pain, swelling, redness, and reduced movement in the affected joint.
4. Diagnosis often involves joint fluid analysis to identify the causative organism.
5. Treatment typically includes antibiotics and may require surgical drainage of the infected joint.

Review Questions

• Which bacteria are most commonly responsible for septic arthritis?
• What are typical symptoms of septic arthritis?
• How is septic arthritis usually diagnosed and treated?

Related terms

Bacteremia:

The presence of bacteria in the blood.

Synovial Fluid: Fluid found in the cavities of synovial joints that reduces friction between articular cartilage during movement.

Endocarditis:

An infection of the inner lining of the heart chambers and valves.