Key clinical point: The occurrence of radiographic spinal damage was overall low among patients with psoriatic arthritis (PsA) and spondyloarthritis; however, severe spinal damage and the extent of syndesmophytes led spinal damage were more observed in spondyloarthritis vs PsA.
Major finding: Proportion of patients with PsA vs spondyloarthritis experiencing spinal damage was comparable (10.6% vs 7.9%; P = .320). However, patients with spondyloarthritis and spinal damage vs PsA had higher modified Stoke Ankylosing Spondylitis Spine Scores, indicating severe spinal damage ( P < .05). Syndesmophytes were significantly higher in the total spine of patients with spondyloarthritis vs PsA ( P < .05).
Study details: This study evaluated patients with PsA (n = 312) and spondyloarthritis (n = 213) who had undergone radiographic imaging assessment in the Belgian Epidemiological Psoriatic Arthritis Study (BEPAS) and observational Ghent and Belgian Inflammatory Arthritis and Spondylitis (Be-GIANT) study, respectively.
Disclosures: The BEPAS and Be-GIANT studies were funded by Merck Sharp Dohme Belgium and AbbVie, respectively. Several authors reported ties with various companies, including AbbVie or Merck Sharp Dohme.
Source: de Hooge M et al. Extent of axial damage in psoriatic arthritis and spondyloarthritis: Comparative data from the BEPAS and (Be-)GIANT multicentre cohorts. RMD Open. 2023;9(2):e002994 (May 3). Doi: 10.1136/rmdopen-2023-002994