What's Really Driving Arthritis Pain?

A narrative review suggests pain in rheumatoid arthritis and osteoarthritis extends beyond nociceptive mechanisms.

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Pain in rheumatoid arthritis (RA) and osteoarthritis (OA) may involve neuropathic and nociplastic pain, not just nociceptive pain from inflammation or damage.
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Visual Analog Scale (VAS) and Visual Numeric Scale (VNS) scores for pain in RA and OA have remained stable over decades, despite improvements in swollen joint counts.
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Median pain VNS scores for RA were reported as 5 in 2021 and 2022, similar to scores from 1979, indicating persistent pain levels despite reduced joint swelling.
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Patients with RA or OA who screened positive for anxiety, depression, and/or fibromyalgia had significantly higher pain scores than those who screened negative.
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The study suggests a potential paradigm shift in understanding pain in rheumatic diseases, highlighting the need for further research on nociplastic pain.

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