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|a Bowen, Catherine J.
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|a Hooper, Lindsey
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|a Culliford, David
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|a Dewbury, Keith
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|a Sampson, Madeline
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|a Burridge, Jane
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|a Edwards, Christopher J.
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|a Arden, Nigel K.
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|a Assessment of the natural history of forefoot bursae using ultrasonography in patients with rheumatoid arthritis: a twelve-month investigation
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|c 2010.
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|z Get fulltext
|u https://eprints.soton.ac.uk/174789/1/Natural_history_of_bursae_in_forefoot_in_RA_ACR%255B2%255D.pdf
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|a Objective: To determine the natural history and clinical significance of forefoot bursae over a 12-month period in patients with rheumatoid arthritis (RA). Methods: Patients with RA (n = 149) attending rheumatology outpatient clinics were assessed at baseline. A total of 120 participants, mean ± SD age 60.7 ± 12.1 years and mean ± SD disease duration 12.99 ± 10.4 years, completed the 12-month followup (98 women, 22 men, 93 rheumatoid factor positive, 24 rheumatoid factor negative, and 3 unknown). Musculoskeletal ultrasound (US) was used to identify forefoot bursae in all of the participants. Clinical markers of disease activity (well-being visual analog scale [VAS], erythrocyte sedimentation rate [ESR], C-reactive protein [CRP] level, and Disease Activity Score in 28 joints [DAS28]) and foot symptoms on the Leeds Foot Impact Scale (LFIS) Questionnaire were recorded on both occasions. Results: Presence of US-detectable forefoot bursae was identified in 93.3% of returnee (n = 120) participants (individual mean 3.7, range 0-11) at baseline. Significant associations were identified between bursae presence and patient-reported foot impact for impairment/footwear (LFISIF; baseline: r = 0.226, P = 0.013 and 12 months: r = 0.236, P = 0.009) and activity limitation/participation restriction (LFISAP; baseline: r = 0.254, P = 0.005 and 12 months: r = 0.235, P = 0.010). After 12 months, 42.5% of participants had an increase in the number of US-detectable forefoot bursae and 45% of participants had a decrease. Changes in bursae number significantly correlated with changes in LFISIF (r = 0.216, P = 0.018) and LFISAP (r = 0.193, P = 0.036). No significant associations were identified between changes in bursae and changes in global well-being VAS, ESR, CRP level, or DAS28. Conclusion: The findings of this study suggest that forefoot bursae may regress or hypertrophy over time in patients with RA, and that these changes may be associated with self-reported foot impairment and activity restriction.
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