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Log relative risk (RR) estimates of revision for infection in patients with rheumatoid arthritis (solid line) vs. osteoarthritis (0-line, reference) are shown by year after the primary surgery. Broken lines show the 95% confidence intervals.
A.Uncemented total hip replacements with 22 revisions for infection in RA.
B.Total hip replacements with antibiotic-loaded cement as fixation and 55 revisions for infection in RA.
