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10 Cards in this Set

  • Front
  • Back
What is the most common joint disorder and the most common cause of long-term disability in most populations?
What is osteoarthritis?
whole joint failure with deterioration in most joint strucutres (including cartilage, bone, muscle, synovium, and joint capsule)
What is the cardinal feature of OA?
progressive loss of articular cartilage with associated remodeling of subchrondral bone
What are causes of secondary OA?
• severe joint injury (most common cause)
• congenital and developmental disorders
• inflammatory arthritis
• neurologic disease
What is the earliest finding in OA?
fibrillation of the most superfical layer of the articular cartilage
Describe the typical pain of OA
• deep aching discomfort
• slow in onset
• initially aggravated with activity
• improved with rest
• localized to the involved joint
Heberden's nodes affect which joints?
Bouchard's nodes affect which joints?
What are radiographic features of OA?
• joint space narrowing
• osteophytes
• subchondral cysts
• subchondral sclerosis
How can you distinguish between osteoarthritis and rheumatoid arthritis by joint involvement?
• osteoarthritis chiefly affects the DIP and PIP joints and spares the wrist and MCP joints (except the thumb)
• rheumatoid arthritis involves the wrist and MCP joints and spares the DIP joints