5. Septic (infectious) arthritis
Infection of joint resulted of invasion of the
synovial membrane by microorganisms which
Spread of infection from other parts of the body (hematogenous spread) or
Direct entrance through trauma or surgical instrumentation.
S. aureus causes 50% of all joint infections and
80% of septic arthritis in patients with
rheumatoid arthritis and diabetes
19. Pathophysiology septic arthritis
Bacterial invasion of synovial space
Inflammation of the synovial tissue
Accumulation of pus in the synovial membrane and
Abscess accumulation in the synovium and subchondral
Destroying of the cartilage and ankylosis of joints.