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OA vs RA Morning Stiffness — SCE Rheumatology MCQ

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EasyOsteoarthritisOA vs RA Morning StiffnessSCE Rheumatology

A 55-year-old woman has rheumatoid arthritis affecting the metacarpophalangeal joints and established osteoarthritis of the first carpometacarpal joint. Which morning stiffness pattern is most characteristic of the osteoarthritic joint?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Morning stiffness is absent or lasts no longer than 30 minutes

The correct answer is B. NICE describes the typical clinical pattern of osteoarthritis as activity-related joint pain with either no morning joint-related stiffness or stiffness lasting no longer than 30 minutes. Patients may also experience brief stiffness after inactivity—the gelling phenomenon—which eases as the joint starts moving. Stiffness is therefore not invariably absent, making A incorrect. Patterns lasting 30–60 minutes or more than 60 minutes are atypical for osteoarthritis and should prompt consideration of an alternative or additional inflammatory diagnosis. Active rheumatoid arthritis commonly causes more prolonged morning stiffness, so B is also incorrect: the duration and clinical behaviour of stiffness in OA and RA are not usually identical.

Reference: National Institute for Health and Care Excellence. NG226, Osteoarthritis in over 16s: diagnosis and management, recommendation 1.1.1. 2022. https://www.nice.org.uk/guidance/ng226/chapter/Recommendations