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Psoriatic Arthritis Associated With Bone/Joint Injuries

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Patients with the skin condition psoriasis who experience an injury involving bones or joints are at increased risk of developing psoriatic arthritis, a new study suggests.

Psoriatic arthritis (PsA) is a type of inflammatory arthritis that develops in some people with the psoriasis. According to the NHS, between one and two in every five people with psoriasis will develop PsA.

Results of a large population study were recently presented at the European League Against Rheumatism Annual Congress (EULAR 2015).

Based on data collected between 1995 and 2013, the research showed that the incidence rate of PsA among psoriasis patients not exposed to trauma was 22 per 10,000 person-years compared to 30 per 10,000 person-years in the exposed group.

A subset analysis showed that bone and joint traumas were associated with increased PsA risk, while nerve trauma and skin trauma were not. Patients without psoriasis exposed to trauma did not have an increased risk of developing rheumatoid arthritis.

“This is the first sizeable population-based cohort study to determine the risk of PsA following trauma in psoriasis patients,” commented Dr. Thorvardur Love, senior author from Landspitali University Hospital in Reykjavik, Iceland. “Our findings highlight the importance of further study into the complex factors that lead to arthritis in psoriasis patients, as we may find ways to modify the risk once we fully understand it.”

Dr. Love said it´s too early to suggest any recommendations for psoriasis patients to avoid physical trauma, such as through avoiding sports, MedPage Today reported.

“It´s not helpful to say don´t get hurt. But if we know there is a risk for patients with psoriasis, maybe we can modify the risk if it does happen, through changing treatment,” he said.