Comparison of Premium Technology Utilization in Total Hip Arthroplasty Between Safety-net Hospitals and
Stefan Sarkovich1, Andrew Chapple, Vinod Dasa
1From the Department of Orthopaedics, Louisiana State University Health Sciences Center, New Orleans, LA (Sarkovich, Chapple, Dasa, and Krause), the Biostatistics Program, School of Public Health, LSU Health Sciences Center, New Orleans, LA (Chapple), and the Ponce Health Sciences University, School of Medicine, Ponce, Puerto Rico (Sarkovich).
Introduction:
The objective of our study was to investigate the association of safety-net hospital (SNH) status with the use of premium technologies in total hip arthroplasty (THA) using the American Academy of Orthopaedic Surgeons American Joint Replacement Registry.
Methods:
Premium technology was defined as having one or more of the following three characteristics: ceramic femoral head, dual mobility (DM) bearing, or surgery conducted with robotic assistance (RA). Patients of all ages were included and subdivided into ceramic femoral head, DM, and RA cohorts. SNH status (based on disproportionate share data), patient demographics, geographical region, hospital size, and teaching affiliation were assessed. Multivariate regression analysis was conducted to analyze any notable associations.
Results:
A total of 624,933 THAs between SNHs and non-SNHs were available for analysis. Based on the three different premium technology categories, there were 551,838 THAs for ceramic femoral head utilization analysis, 601,223 THAs for DM utilization analysis, and 199,250 THAs for RA utilization analysis. SNHs were associated with less use of DM and RA (odds ratio [OR] 0.53 P < 0.0001, 0.39 P < 0.0001, respectively). No difference was observed in ceramic femoral head utilization between SNHs and non-SNHs. Patient age was significantly associated with less utilization of all three premium THA technologies (ceramic: OR 0.43 P < 0.0001; DM: OR 0.93 P < 0.0001, RA: OR 0.89 P < 0.001). Teaching hospitals were significantly associated with increased utilization of premium THA technologies (ceramic: OR 1.23 P < 0.0001, DM: OR 1.62 P < 0.0001, RA: OR 5.33 P < 0.001).
Conclusion:
Premium THA technologies are becoming increasingly used across the US healthcare system; however, that growth is not equal in hospitals with marginalized patient populations. The utilization of ceramic femoral heads is becoming increasingly common across healthcare systems suggesting that ceramic femoral heads may no longer be considered premium technology but rather standard THA care.
Level Of Evidence:
Level III.
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