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