Do Racial Disparities Impact Healthcare Costs and Resource Utilization after Total Joint Replacements?

Abstract

Background Racial disparities currently exist in healthcare and can have a significant impact on patient outcomes and access to quality care. Previous studies have indicated that black patients are more likely to experience delays in treatment and increased surgical complications. Hispanic patients have more comorbidities and increased complications when undergoing orthopaedic surgeries. The purpose of this study was to evaluate the impact of racial disparities on postoperative complications and readmission rates following Total Joint Arthroplasty (TJA). Methods The largest single healthcare network database was queried to identify total joint arthroplasty patients treated in a single division between 2017 and 2021. Patient demographics including age, race, gender, and comorbidities were collected. Logistic regression and odds ratio point estimate analyses were utilized to assess for associations between race (defined as Whites, Blacks, Hispanics, Asians, and Others) and postoperative medical complications and surgical complications, which were collected for all patients. Patient outcomes included length of stay, hospital readmission status at 30 and 90 days postoperative, and emergency room (ER) visits up to 90 days. Results A total of 16,940 patients were included in this analysis consisting of 62% female, a mean age of 71 years and mean BMI of 29.4 kg/m2 . Racial demographics consisted of 61.6% White, 12.3% Black, 24.1% Hispanic, 0.8% Asian, and 1.2% Other. Race was not significantly associated with increased readmissions at 30 days (p=0.2215) and hispanic patients were 14% less likely to be readmitted within 90 days (p = 0.0208) but were not found to have differences in ER visits when compared to White patients. Black and Asian patients were not significantly more likely to visit the ER within 90 days or to be readmitted to the hospital within 90 days when compared to White patients. Race was not significantly associated with postoperative medical complications or surgical complications. Conclusions This study found a higher readmission rate of up to 20% for total joint arthroplasty patients within 90 days of follow-up. Although race did not appear to be a significant determinant of additional ER visits or readmissions, there was some variation seen amongst Hispanic patients undergoing TJR with a lower likelihood of readmission at 60 and 90 days postoperative.