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Difference between the Psoriatic Arthritis and Osteoarthritis:

Psoriatic Arthritis vs. Osteoarthritis

Psoriatic arthritis and Osteoarthritis are the types of arthritis. Though some symptoms may look similar the following points help to know the difference between Psoriatic Arthritis and Osteoarthritis.

  1. Psoriasis arthritis is associated with psoriasis, an autoimmune disease. Psoriasis precedes psoriasis arthritis, in 80% of patients. Osteoarthritis can be of two types as said. It can be idiopathic, by aging or by developmental defects, or by genetic dispositions, trauma, or injury.
  2. Psoriatic arthritis involves nails, lower back, arms, legs, feet, fingers, nails, buttocks, ligaments, tendons, discs, spine, scalp, etc many parts, osteoarthritis extends only to the knee, spine, fingers, feet, hip, etc.
  3. Psoriasis arthritis is an autoimmune disorder, osteoarthritis is an aging or post-traumatic pain syndrome. It can be more likely said as a joint disorder.
  4. Both psoriasis arthritis and osteoarthritis are chronic and lifelong traumatizing disorders. 
  5. Psoriasis arthritis is an oligoarthritis, which means it is of an unknown origin. It is also seronegative that is negative for rheumatoid antibodies. Osteoarthritis affects the synovial joints, and also the cause is traceable.
  6. Both osteoarthritis and psoriasis arthritis develop inflammation in the joints they affect. 
  7. The origin of inflammation in psoriasis arthritis is an autoimmune reaction. The imbalance between the biochemical breakdown and tissue repair is the cause of the start of osteoarthritis.
  8. Both the diseases develop the inflamed joints, but in the case of psoriasis arthritis they are swollen, sausage-like, deformed as in dactylitis, psoriasis arthritis mutilans, etc. In osteoarthritis, the joint space narrowing is noticed considerably only after grade II and the architectural changes in the joints happen only at stage V.
  9. Psoriasis arthritis causes skin lesions, itching, nail dislocation, redness, plaques, scales, pus, erythroderma, guttate lesions, etc. while osteoarthritis only affects the joints.
  10. Psoriasis arthritis deforms the distal joints, digitals, clefts, nails, pitting of nails, beau lines, half-moon lines, micro-traumas on the skin, hyperkeratosis, it even affects the umbilicus and scalp. Osteoarthritis is only a gradual tearing of the cartilage surface causing complications only in and around the synovial joints.
  11. In the enthesitis of psoriasis arthritis, the entheses, which are ligaments and tendons of the joints, are inflamed. It results in tissue ossification, calcification, and tissue fibrosis. This is a characteristic feature of psoriasis arthritis. Unlike in osteoarthritis, no tendons or supporting structures are involved. Instead, the cartilage softens, and gradually dissolves because of the proteolysis that is released.
  12. The joints get swollen, inflamed, and deformed in psoriasis arthritis, whereas the joints remain the same, but the cartilage dissolves, resulting in the joint space narrowing. A great space loss occurs between the joints.
  13. In both diseases, the joint inflammations cause restricted movement, and inability to hold and affect the quality of life.
  14. In both psoriasis arthritis and osteoarthritis, stiffness of joints is seen. Whereas in osteoarthritis, morning stiffness specific for 30 mins is notable.
  15. The involvement of distal interphalangeal joints and proximal interphalangeal joints, meta carpels is seen in both osteoarthritis of the hand and psoriasis arthritis. 
  16. Heberdon and Bouchard’s nodes, narrowed joint space, inflammation, bone spurs, and progressing disease symptoms are characteristics of osteoarthritis. Sausage like digits in dactylitis, inflammation of fibers in enthesitis, pitted nails to skin lesions, etc are characteristic only of psoriasis arthritis. 
  17. Overweight, high BMI, adulthood, genetic disposition can be risks for both osteoarthritis and psoriasis arthritis
  18. The presence of Non-inflammatory synovial fluid distinguishes osteoarthritis from every other joint pain. Synovial fluid is inflammatory in psoriasis arthritis 
  19. Psoriasis arthritis lab findings go on from erythrocyte sedimentation rate, serum immunoglobulins, rheumatoid factor, uric acid, synovial fluid, c reactive protein levels, complete blood count, skin biopsies, etc. In osteoarthritis, the erythrocyte sedimentation rate, immunoglobulins, etc are not affected so they are not tested for any such lab findings.
  20. Physical evaluations like Patellofemoral compression test, palpation of the patella are enough, and if at all needed imagings like Arthrography, MRI, radiograph are used to diagnose osteoarthritis while apart from the physical classifications, lab findings a list of radiographic and magnetic resonance studies are utilized for evaluating characteristic symptoms for psoriasis arthritis. 
  21. Psoriasis arthritis is diagnosed by the scores of psoriasis, history of psoriasis, examination of the skin, testing or rheumatoid factor, etc. whereas osteoarthritis can be evaluated by a standard physical evaluation if not by a simple radiograph.
  22. Management of osteoarthritis and psoriasis arthritis demands weight loss, physical activity, exercise, a healthy diet, and lifestyle changes
  23. Treating osteoarthritis stresses more therapeutic and non-pharmacological treatments same as in psoriasis arthritis. In both diseases, surgical interventions like joint replacement, arthrodesis, and arthroplasty are proven beneficial.
  24. Both psoriatic arthritis and osteoarthritis are types of arthritis. Both are chronic, and with no gold standard cure. Medical care balanced with lifestyle changes only can alleviate the aggressive effects of the disease.

P.S:

“This article does not provide medical advice. It is intended for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Never ignore professional medical advice in seeking treatment because of something you have read on this WebSite. If you think you may have a medical emergency, immediately call or visit your doctor.”

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