Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

OBJECTIVE: To determine the frequency and clinical predictors of sacroiliitis diagnosed by magnetic resonance imaging (MRI) in a psoriatic arthritis (PsA) population. METHODS: The studied comprised 103 patients with PsA. A careful clinical assessment for sacroiliitis was made from history and examination, and HLA-B27 testing was performed. Sixty-eight patients underwent tilted coronal fat-saturated T1-weighted and STIR MRI of the sacroiliac joints. RESULTS: Clinical features of moderate or severe sacroiliitis were found in 24/68 (35%) patients. MRI features of sacroiliitis were found in 26/68 (38%) patients. Clinical features of sacroiliitis were present in 14/42 (33%) with normal MRI scans and 10/26 (38%) with abnormal scans (normal vs abnormal scans, P = 0.7). The presence of sacroiliitis on MRI was associated with restricted spinal movements (P = 0.004) and the duration of PsA (P = 0.04). There was no correlation between HLA-B27 and sacroiliitis diagnosed by MRI. CONCLUSION: Sacroiliitis diagnosed by MRI occurs commonly in PsA but is difficult to detect clinically.

Original publication

DOI

10.1093/rheumatology/keg475

Type

Journal article

Journal

Rheumatology (Oxford)

Publication Date

01/2004

Volume

43

Pages

85 - 88

Keywords

Adult, Aged, Arthritis, Psoriatic, Female, HLA-B27 Antigen, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Predictive Value of Tests, Prevalence, Sacroiliac Joint