Readmission after Total Hip Arthroplasty (THA) or Total Knee Arthroplasty (TKA) places a great burden on the health care system. As reimbursement systems place increased emphasis on quality measures such as readmission rates, understanding the causes for readmission becomes increasingly important. We queried an electronic database for all patients who underwent THA or TKA at our institution from 2006 through 2010. We identified those who had been readmitted within 90 days of discharge from the initial admission. We then collected clinical and demographic data as well as readmission diagnoses by ICD-9 code. We compared rates of readmission using chi-squared test.Introduction
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