By Marc Dellière, Medical Consultant & Trainer – Specialist in Stress, Prevention & Integrative Health
During consultations, one question often comes up: “Doctor, do I have osteoarthritis or arthritis?” These two terms are similar, but they do not refer to the same condition. And the difference is significant, both for the patient and for the treatment strategy.
Osteoarthritis: mechanical wear and tear
This is the most common joint disorder. The cartilage thins and the bone deforms. The pain is mechanical: triggered by exertion, relieved by rest; morning stiffness is brief. Long considered a simple “age-related disease,” we now know that it can be as debilitating as rheumatoid arthritis (Pincus, 2019, J Rheumatol) and that low-grade inflammation also contributes to its progression.
Arthritis: active inflammation
Here, it is an immune reaction that goes into overdrive. The synovium becomes inflamed, cytokines are released, and the joint swells, heats up, and becomes painful... even at rest. Morning stiffness is prolonged. Without prompt treatment, joint destruction can be irreversible. The latest data also show immunological overlaps between osteoarthritis and RA (Zhang et al., 2024, Front Immunol), but with distinct cytokine signatures that explain their clinical progression.
In practice:
✔️ Osteoarthritis: pain management, physical therapy, viscosupplementation, healthy lifestyle.
✔️Arthritis: urgent treatment with DMARDs, biotherapies, multidisciplinary follow-up.
🔎 Our role is twofold:
✔️ Do not confuse these clinical pictures (Ross, 1997, Nurse Pract).
✔️ Do not underestimate the functional impact of osteoarthritis, which is often comparable to that of inflammatory diseases (Pincus, 2019). Because behind a painful joint, there is much more than just a lesion: disturbed sleep, compromised professional activity, a slowed-down life.
Key points:
✔️ Osteoarthritis = slow degeneration.
✔️ Arthritis = rapid inflammation. Two faces of joint pain, two radically different approaches to treatment.
Learn more about Xelflex® for joint health!
Scientific sources :
✍️ Pincus T. Osteoarthritis is as severe as rheumatoid arthritis. J Rheumatol. 2019 Oct;46(10):1235-1237. doi:10.3899/jrheum.190805. PubMed
✍️ Zhang Y, Jin Y, Tang J, et al. Similarities and differences between osteoarthritis and rheumatoid arthritis: genetic and immunologic perspectives. Front Immunol. 2024;15:1410930. doi:10.3389/fimmu.2024.1410930. PubMed Central
✍️ Ross C. A comparison of osteoarthritis and rheumatoid arthritis: diagnosis and treatment. Nurse Pract. 1997 Sep;22(9):16, 21-6. doi:10.1097/00006205-199709000-00006. PubMed
✍️ Saalfeld S, Gottenberg JE, FitzGerald O, et al. Differentiating Psoriatic Arthritis from Osteoarthritis and Rheumatoid Arthritis: A Narrative Review and Guide for Practitioners. Rheumatol Ther. 2021 Dec;8(4):1105-1121. doi:10.1007/s40744-021-00371-3. PubMed Central
✍️ Vogt L, Shen TC, McGonagle D, et al. Both osteo- and rheumatoid arthritis increase with age, are more common in women, and associated with poorer self-reported health: results from NHANES 1999-2015. Arthritis Res Ther. 2020 Nov;22(1):246. doi:10.1186/s13075-020-02321-y. PubMed Central
✍️ StatPearls. Inflammatory Arthritis. Treasure Island (FL): StatPearls Publishing; updated Jan 2025. NCBI Bookshelf
✍️ EFORT Open Reviews. Osteoarthritis: pathogenesis, clinical features, and management. EFORT Open Rev. 2021;6(8):678-689. doi:10.1302/2058-5241.6.210045. NCBI Bookshelf