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Psoriatic Arthritis

Day, Michael Sean MD, MPhil; Nam, Denis MD; Goodman, Susan MD; Su, Edwin P. MD; Figgie, Mark MD

JAAOS - Journal of the American Academy of Orthopaedic Surgeons: January 2012 - Volume 20 - Issue 1 - p 28–37
doi: 10.5435/JAAOS-20-01-028
Review Article

Psoriatic arthritis is a chronic inflammatory arthropathy that affects approximately 6% to 48% of patients with psoriasis. Arthritis is not correlated with the extent of skin disease. Classic radiographic findings of the involved joint include erosion, ankylosis, and fluffy periostitis. Site-specific characteristic deformities such as pencil-in-cup deformity of the phalanges also may be present. The disease typically follows a moderate course, but up to 47% of cases develop into destructive arthritis in which the inflammatory process leads to bony erosion and loss of joint architecture. The mainstay of treatment is biologic therapy (eg, tumor necrosis factor-α lllinhibitors) in conjunction with disease-modifying antirheumatic drugs. Patients with end-stage joint destruction may require surgery to alleviate pain and restore function. Orthopaedic surgeons should be cognizant of the risk factors (eg, increased risk of cardiovascular disease) and potential complications (eg, poor wound healing and increased risk of infection) associated with psoriatic arthritis.

From the Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, NY (Dr. Day), the Department of Orthopedic Surgery (Dr. Nam, Dr. Su, and Dr. Figgie), and the Department of Rheumatology (Dr. Goodman), Hospital for Special Surgery, New York.

Dr. Su or an immediate family member serves as a paid consultant to Smith & Nephew and has received research or institutional support from Smith & Nephew and Cool Systems. Dr. Figgie or an immediate family member has received research or institutional support from Ethicon. None of the following authors or any immediate family member has received anything of value from or owns stock in a commercial company or institution related directly or indirectly to the subject of this article: Dr. Day, Dr. Nam, and Dr. Goodman.

© 2012 by American Academy of Orthopaedic Surgeons
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