Acute Septic Arthritis (Pyogenic Arthritis)
0 Infection of the joint space.
0 It is most common in children around 4 years of age.
0 It is most common in the hip and knee joints.
0 It can be seen in adults in diabetes, rheumatoid arthritis, use of immunosuppressive drugs such as steroids and alcoholism.
0 The most common causative agent is S. aureus.
0 The most common cause of prosthesis is S. epidermidis.
0 Clinical: Fever, weakness, joint pain, swelling, temperature increase and limitation of movement
0 Diagnosis: PMNL is seen in joint aspiration, total protein is elevated and glucose is decreased.
0 Radiology:
• Enlargement of joint space
• Enlargement of the surrounding soft tissue
• Cambering in the capsule area
• Joint trabeculation damage
• Osteoporosis in the surrounding bones
Treatment: Drainage + Antibiotic + Resting the joint in a fixed position
Gonococcal Arthritis
0 It usually develops following acute gonorrheal urethritis.
0 Polyarticular arthritis most commonly affects the knees, wrists, and ankles.
0 It starts as polyarthritis, becomes monoarthritis.