Metatarsophalangeal joint pain in psoriatic arthritis: a cross-sectional study

Turner, D. E., Hyslop, E., Barn, R., McInnes, I. B. , Steultjens, M. P.M. and Woodburn, J. (2014) Metatarsophalangeal joint pain in psoriatic arthritis: a cross-sectional study. Rheumatology, 53(4), pp. 737-740. (doi:10.1093/rheumatology/ket435) (PMID:24369414)

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Abstract

Objective. The aim of this study was to identify independent predictors of pain at the MTP joints in patients with PsA.

Methods. Thirty-four consecutive patients with PsA (mean age 45.3 years, 65% female, mean disease duration 9.9 years) and 22 control participants (mean age 37.9 years, 64% female) underwent clinical and US examination to determine the presence of pain, swelling, synovitis, erosions, effusions and submetatarsal bursae at the MTP joints. Mean barefoot peak plantar pressures were determined at each MTP joint. Levels of pain, US-determined pathology and peak pressures were compared between groups. Binary logistic regression was used to identify demographic, clinical examination-derived, US-derived and plantar pressure predictors of pain at the MTP joints in the PsA group.

Results. The presence of pain, deformity, synovitis, erosions (P < 0.001) and submetatarsal bursae and peak plantar pressure at MTP 3 (P < 0.05) were significantly higher in the PsA group. MTP joint pain in PsA was independently predicted by high BMI, female gender and the presence of joint subluxation, synovitis and erosion.

Conclusion. These results suggest local inflammatory and structural factors, together with systemic factors (gender, BMI), are predominantly responsible for painful MTP joints in PsA, with no clear role for plantar pressure characteristics.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McInnes, Professor Iain
Authors: Turner, D. E., Hyslop, E., Barn, R., McInnes, I. B., Steultjens, M. P.M., and Woodburn, J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Rheumatology
Publisher:Oxford University Press
ISSN:1462-0324
ISSN (Online):1462-0332
Copyright Holders:Copyright © 2013 The Authors
First Published:First published in Rheumatology 53(4):737-740
Publisher Policy:Reproduced under a Creative Commons License

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