Impact of a Dedicated Orthopaedic Trauma Room on Elective Arthroplasty Case Volume.

Abstract

To examine the effects of implementing a dedicated orthopaedic trauma room (DOTR) on elective arthroplasty volume. Retrospective cohort study. Level I academic trauma center. A retrospective analysis was performed for two 3-year intervals before and after DOTR introduction on January 20, 2013, at a Level I trauma center. Surgeons were included if they performed elective primary total hip arthroplasty (THA), total knee arthroplasty (TKA), total shoulder arthroplasty (TSA), or reverse total shoulder arthroplasty (RTSA) regularly from 2010 to 2015. Change in elective arthroplasty volume after the implementation of a DOTR. A total of 2339 cases were performed by surgeons A-E, with an average of 303.3 cases per year pre-DOTR and an average of 476.3 cases per year post-DOTR. On average, within our institution, there were 75.79 per 10,000 cases/year in Michigan pre-DOTR and 104.2 per 10,000 cases/year in Michigan post-DOTR. Surgeons A-E averaged 173.0 more cases per year and increased their average proportion of elective arthroplasty case volume in Michigan. There was a statistically significant market share increase of 9.8 per 10,000 cases/year in Michigan, at our hospital in the post-DOTR periods ( P = 0.039) (CI [0.5442, 19.21], SE = 4.523). This market share increase of 9.8 cases/10,000 cases was the yearly increase in market share that our average surgeons saw after the DOTR implementation, this took into account the observed annual increase in arthroplasty volume statewide during those years. Implementation of a DOTR was associated with increases in the total number, annual mean, and annual proportion of elective arthroplasty cases performed in Michigan for both elective surgeons and the institution as a whole. These findings reveal a benefit of DOTR implementation to elective arthroplasty surgeons and health systems on a larger scale, in the form of increased arthroplasty case volume.