Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
There have been reports suggesting that trauma or ‘deep Koebner phenomenon’ can precipitate the development of psoriatic arthritis (PsA).1 Both psoriasis and PsA have strong genetic associations, but there are no studies or reports on any potential interaction between environmental injury and genetics in the development of PsA. We describe the cases of identical twins with psoriasis who each developed PsA of the respective right and left second toes following foot injury.
A 54-year-old woman with a 15-year history of psoriasis kicked a table leg with her right foot. Thereafter, she developed pain and swelling of the second toe. X-ray of the foot did not show any fractures. An ultrasound showed marked synovitis of the right second toe with associated plantar plate rupture. She subsequently had surgical repair of the plantar plate, but the pain and swelling persisted. …
Twitter Follow Ai Lyn Tan at @DrAiLynTan
Contributors Patient recruitment and data acquisition: JN. Case description and interpretation; manuscript preparation and final approval: JN, ALT and DM.
Competing interests None.
Patient consent Obtained.
Provenance and peer review Not commissioned; externally peer reviewed.