Is Axial Psoriatic Arthritis the Same as Ankylosing Spondylitis With Psoriasis: A Debate

Laura C Coates; Atul Deodhar

doi:10.3899/jrheum.2023-0512

Is Axial Psoriatic Arthritis the Same as Ankylosing Spondylitis With Psoriasis: A Debate

J Rheumatol. 2023 Nov;50(Suppl 2):14-17. doi: 10.3899/jrheum.2023-0512. Epub 2023 Jul 7.

Authors

Laura C Coates¹, Atul Deodhar²

Affiliations

¹ L.C. Coates, MD, PhD, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; laura.coates@ndorms.ox.ac.uk.
² A. Deodhar, MD, Division of Arthritis and Rheumatic Diseases, Oregon Health & Science University, Portland, Oregon, USA.

PMID: 37419625
DOI: 10.3899/jrheum.2023-0512

Abstract

During the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) 2022 conference, Drs. Laura Coates and Atul Deodhar debated whether axial psoriatic arthritis (axPsA) is the same as ankylosing spondylitis (AS) with psoriasis. Dr. Coates argued that AS represents a spectrum of disease and that axPsA can be considered within that spectrum. Dr. Deodhar argued that axPsA and AS are 2 different diseases, using construct, content, face, and criterion validity. Their main arguments are described in this manuscript.

Keywords: GRAPPA; ankylosing; arthritis; psoriasis; psoriatic arthritis; spondylitis.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Arthritis, Psoriatic* / complications
Humans
Psoriasis* / complications
Severity of Illness Index
Spondylitis, Ankylosing* / complications