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Bone erosions at the distal ulna detected by ultrasonography are associated with structural damage assessed by conventional radiography and MRI: a study of patients with recent onset rheumatoid arthritis
Rheumatology, 09/24/09

Hammer HB et al. – A significant number of patients had US erosions at the distal ulna at baseline, with increased prevalence after 1 year. The US-detected erosions were associated with structural joint damage in hands assessed by both MRI and CR. US of the distal ulna could give useful clinical information.

Methods

70 patients with recent onset RA (median disease duration 106 days) were examined by US of the distal ulna
Hand radiography and MRI of the wrist obtained
58 patients re-assessed 12 m later

Results

US detected erosions at distal ulna in 11% of patients at baseline and 24% at follow-up
Logistic regression analyses showed the presence of erosions at baseline to be associated with baseline RAMRIS erosion score

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