• Matthew K Sandre and Sherry Rohekar.
• McMaster University School of Medicine, Hamilton, Ontario, Canada.
• Semin. Arthritis Rheum. 2014 Oct 1;44(2):162-9.

ObjectivePsoriatic arthritis (PsA) has a diverse range of clinical manifestations, both articular and extra-articular. Although the association of PsA with skin changes is well established, the relationship of PsA with psoriatic nail changes remains relatively unexplored.MethodsThis report reviews the current literature surrounding the association of PsA with nail changes. A review of the literature was completed using PubMed, MEDLINE, and EMBASE in September 2013, encompassing years 1964-2012.ResultsA total of 21 articles were reviewed. On average, 66% [standard deviation (SD) 17.7] of PsA patients had nail changes. The type of nail changes and their associations varied widely between studies.ConclusionsStudies of nail changes in PsA are highly variable with a wide range of results. Given the variability of results that were observed in this review, our recommendations are that further large studies on nail changes in patients with PsA should be conducted.Copyright © 2014 Elsevier Inc. All rights reserved.

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