Which physical finding is included in ACRR criteria for knee OA?

Which physical finding is included in ACRR criteria for knee OA?

• A. Soft tissue swelling
• B. Redness
• C. Numbness
• D. Bony enlargement

Answer: (D)

The key idea here is that knee OA criteria focus on signs of bony change around the joint rather than inflammatory signs. Bony enlargement reflects osteophyte formation and bone remodeling that occur with osteoarthritis, making it a classic, included finding in the ACR criteria for classifying knee OA. Soft tissue swelling and redness point more toward inflammatory processes or effusion, not the degenerative bony changes seen in OA, and numbness isn’t a typical OA feature. So, bony enlargement is the finding that fits the ACR criteria best.

The key idea here is that knee OA criteria focus on signs of bony change around the joint rather than inflammatory signs. Bony enlargement reflects osteophyte formation and bone remodeling that occur with osteoarthritis, making it a classic, included finding in the ACR criteria for classifying knee OA. Soft tissue swelling and redness point more toward inflammatory processes or effusion, not the degenerative bony changes seen in OA, and numbness isn’t a typical OA feature. So, bony enlargement is the finding that fits the ACR criteria best.