Avascular necrosis

Etiology

Risk factors

• Corticosteroid use
• Trauma
• SLE
• Pancreatitis
• Alcoholism
• Gout
• Sickle cell disease
• Infiltrative disease, e.g., Gaucher disease

DDx

• Osteoarthritis or rheumatoid arthritis
• Fracture
• Joint pain due to other causes

See related DDx

• Hip pain
• Shoulder pain
• Knee pain
• Arthritis, general DDx
• Bone pain & pathologic fractures