Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2021 Jan;7(1):e001450.
doi: 10.1136/rmdopen-2020-001450.

Prevalence and distribution of peripheral musculoskeletal manifestations in spondyloarthritis including psoriatic arthritis: results of the worldwide, cross-sectional ASAS-PerSpA study

Affiliations

Prevalence and distribution of peripheral musculoskeletal manifestations in spondyloarthritis including psoriatic arthritis: results of the worldwide, cross-sectional ASAS-PerSpA study

Clementina López-Medina et al. RMD Open. 2021 Jan.

Abstract

Objectives: To characterise peripheral musculoskeletal involvement in patients with spondyloarthritis (SpA) including psoriatic arthritis (PsA), across the world.

Methods: Cross-sectional study with 24 participating countries. Patients with a diagnosis of axial SpA (axSpA), peripheral SpA (pSpA) or PsA according to their rheumatologist were included. The investigators were asked which diagnosis out of a list of six (axSpA, PsA, pSpA, inflammatory bowel disease-associated SpA, reactive arthritis or juvenile SpA (Juv-SpA)) fitted the patient best. Peripheral manifestations (ie, peripheral joint disease, enthesitis, dactylitis and root joint disease), their localisation and treatments were evaluated.

Results: A total of 4465 patients were included (61% men, mean age 44.5 years) from four geographic areas: Latin America (n=538), Europe plus North America (n=1677), Asia (n=975) and the Middle East plus North Africa (n=1275). Of those, 78% had ever suffered from at least one peripheral musculoskeletal manifestation; 57% had peripheral joint disease, 44% had enthesitis and 15% had dactylitis. Latin American had far more often peripheral joint disease (80%) than patients from other areas. Patients with PsA had predominantly upper limb and small joint involvement (52%).Hip and shoulder involvement was found in 34% of patients. The prevalence of enthesitis ranged between 41% in patients with axSpA and 65% in patients with Juv-SpA. Dactylitis was most frequent among patients with PsA (37%).

Conclusion: These results suggest that all peripheral features can be found in all subtypes of SpA, and that differences are quantitative rather than qualitative. In a high proportion of patients, axial and peripheral manifestations coincided. These findings reconfirm SpA clinical subtypes are descendants of the same underlying disease, called SpA.

Keywords: ankylosing; arthritis; juvenile; psoriatic; spondylitis.

PubMed Disclaimer

Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
Prevalence of peripheral musculoskeletal manifestations in the past with regard to the geographic area.
Figure 2
Figure 2
Prevalence of peripheral musculoskeletal manifestations in the past with regard to the diagnosis. axSpA, axial spondyloarthritis; IBD-SpA, inflammatory bowel disease-associated spondyloarthritis; Juv-SpA, juvenile spondyloarthritis; PsA, psoriatic arthritis; pSpA, peripheral spondyloarthritis; ReA, reactive arthritis.
Figure 3
Figure 3
Number of affected joints in the past (excluding root joints) with regard to the diagnosis*. *Among patients with peripheral joint disease (excluding root joints) and available data concerning the number of affected joints (n=2538). axSpA, axial spondyloarthritis; IBD-SpA, inflammatory bowel disease-associated spondyloarthritis; Juv-SpA, juvenile spondyloarthritis; PsA, psoriatic arthritis; pSpA, peripheral spondyloarthritis; ReA, reactive arthritis.
Figure 4
Figure 4
Location of peripheral articular involvement in the past (excluding root joints) with regard to the diagnosis*. *Among patients with peripheral joint disease (excluding root joints) and available data concerning the location of affected joints (n=2501). axSpA, axial spondyloarthritis; IBD-SpA, inflammatory bowel disease-associated spondyloarthritis; Juv-SpA, juvenile spondyloarthritis; PsA, psoriatic arthritis; pSpA, peripheral spondyloarthritis; ReA, reactive arthritis.
Figure 5
Figure 5
Location of root joint involvement in the past with regard to the diagnosis*. *Among patients with root joint involvement and available data concerning the location (n=1372). axSpA, axial spondyloarthritis; IBD-SpA, inflammatory bowel disease-associated spondyloarthritis; Juv-SpA, juvenile spondyloarthritis; PsA, psoriatic arthritis; pSpA, peripheral spondyloarthritis; ReA, reactive arthritis.

References

    1. Dougados M, Baeten D. Spondyloarthritis. Lancet 2011;377:2127–37. 10.1016/S0140-6736(11)60071-8 - DOI - PubMed
    1. Rudwaleit M, van der Heijde D, Landewé R, et al. . The assessment of spondyloarthritis international society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general. Ann Rheum Dis 2011;70:25–31. 10.1136/ard.2010.133645 - DOI - PubMed
    1. Taylor W, Gladman D, Helliwell P, et al. . Classification criteria for psoriatic arthritis: development of new criteria from a large international study. Arthritis Rheum 2006;54:2665–73. 10.1002/art.21972 - DOI - PubMed
    1. Benegas M, Muñoz-Gomariz E, Font P, et al. . Comparison of the clinical expression of patients with ankylosing spondylitis from Europe and Latin America. J Rheumatol 2012;39:2315–20. 10.3899/jrheum.110687 - DOI - PubMed
    1. Bautista-Molano W, Landewé R, Burgos-Vargas R, et al. . Prevalence of comorbidities and risk factors for comorbidities in patients with spondyloarthritis in Latin America: a comparative study with the general population and data from the ASAS-COMOSPA study. J Rheumatol 2018;45:206–12. 10.3899/jrheum.170520 - DOI - PubMed

Publication types