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We analyzed national data collected by the Health Insurance Review and AssessmentService in Korea from 2007 to 2011; 1) to document procedural numbers and proceduralrate of bipolar hemiarthroplasty (BH), primary and revision total hip arthroplasties (THAs),2) to stratify the prevalence of each procedure by age, gender, and hospital type, andquantified, 3) to estimate the revision burden and evaluate whether the burden is changedover time. Our final study population included 60,230 BHs, 40,760 primary THAs, and10,341 revision THAs. From 2007 to 2011, both the number and the rate of BHs, primaryTHAs increased steadily, whereas there was no significant change in revision THAs. Overthe 5 yr, the rate of BHs and primary THAs per 100,000 persons significantly increased by33.2% and 21.4%, respectively. The number of revision THAs was consistent over time. The overall annual revision burden for THA decreased from 22.1% in 2007 to 18.9% in2011. In contrast to western data, there were no changes in the number and rate ofrevision THAs, and the rates of primary and revision THAs were higher for men than thosefor women. Although 5 yr is a short time to determine a change in the revision burden,there have been significant decreases in some age groups.

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