- Rare before age 30; increased incidence in the elderly (27% to 50% in ages 85 to 90).
- Usually polyarticular, 2/3 is symmetricall
- Diagnosis is made by joint aspiration.
- Treated with nonsteroidal anti-inflammatory drugs (NSAIDs), joint injection, corticosteroids, or colchicine.
- Chondrocalcinosis is not required for diagnosis
- commonly involves non-weight bearing joints
Knee > > wrist > hand > shoulder, hip, elbow
- Knee: commonly involves patellofemoral joint
- Hand: 2nd and 3rd MCP, hook like osteophytes
- Wrist: radiocarpal and scapholunate joint; scapholunate advanced collapse can be seen in severe cases
- Geodes and erosion are common
SLAC (scapholunate advanced collapse): a gap can be seen between scapholunate joint
Reference: auntieminnie, radiopaedia.org