HCUP Statistical Brief 281: Overview of Operating Room Procedures During Inpatient Stays in U.S. Hospitals, 2018

Knee arthroplasty was the second most frequent operating room procedure during inpatient stays in 2018 at 715,200 procedures, a rate of 219.0 per 100,000 population and 5.0 per cent of all inpatient OR procedures. Hip arthroplasty was fourth at 599,500. All-payer and inpatient only, on 2018 data, so it predates most of the ambulatory migration.

Supporting location Table of most frequent inpatient OR procedures, 2018 National Inpatient Sample

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