Psoriatic Nail Dystrophy Is Associated with Erosive Disease in the Distal Interphalangeal Joints in Psoriatic Arthritis: A Retrospective Cohort Study.
Anna S AntonyAndrew AllardAdwaye M RambojunChristopher R LovellGavin ShaddickGraham RobinsonDeepak R JadonRichard HollandCharlotte CavillEleanor KorendowychNeil J McHughWilliam TillettPublished in: The Journal of rheumatology (2019)
The presence of psoriatic nail dystrophy, particularly onycholysis, is associated with erosive disease at the DIP joints. Subungual hyperkeratosis is more strongly associated with erosive damage at the DIP than non-DIP joints. These findings support the anatomical and pathological link between nail and DIP joint disease.