Abstract:
INTRODUCTION:The aim of this study was to assess the distribution of bone erosions in the feet of patients with gout using CT and thereby to test the hypothesis that gout is an asymmetric arthropathy. METHODS:CT scans of both feet were obtained from 25 patients with chronic gout. CT scans were scored for bone erosion using a semi-quantitative method based on the rheumatoid arthritis MRI scoring system (RAMRIS). CT bone erosion was assessed at 22 bones in each foot (total 1,100 bones) by two independent radiologists. Symmetry was assessed by two methods: (i) comparing right and left foot scores for each patient; and (ii) calculating the proportion of paired joints with or without erosions. RESULTS:Observer agreement was excellent (intra-class correlation coefficient 0.92). In the group overall, the difference in scores between the feet was not significant (Student's t-test P = 0.8). In 17 of 25 patients, the difference in erosion scores between the two feet was less than the inter-observer difference. In 24 of 25 patients, the proportion of paired joints was greater than 0.5, indicating symmetric disease. CONCLUSIONS:Erosive disease from gout is, in fact, a symmetric process in our patient group. This finding is contrary to the established view of gout as an asymmetric arthritis and lends new insight into the behaviour of this common disease.
journal_name
J Med Imaging Radiat Oncoljournal_title
Journal of medical imaging and radiation oncologyauthors
Doyle AJ,Dalbeth N,McQueen F,Boyer L,Dong J,Rome K,Frecklington Mdoi
10.1111/1754-9485.12419subject
Has Abstractpub_date
2016-02-01 00:00:00pages
54-8issue
1eissn
1754-9477issn
1754-9485journal_volume
60pub_type
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