Thirty-Day Outcomes After Acute Total Hip Arthroplasty Combined With Internal Fixation of Acetabular Fractures: A Multi-Institutional Database Analysis.

ABSTRACT

INTRODUCTION: The purposes of this study were to characterize the 30-day surgical risk of patients undergoing open reduction and internal fixation (ORIF) and total hip arthroplasty stratified by an acetabular fracture pattern and to compare postoperative complications with ORIF alone using a large database. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried to determine 30-day outcomes after the combined hip procedure (CHP) compared with ORIF alone between 2005 and 2020. Current Procedural Terminology codes categorized fracture patterns. Univariate analysis was performed using the chi-square, Fisher exact, or Wilcoxon rank sum test. Logistic regression models were fitted to evaluate for any differences in postoperative complications. Total hospital length of stay was compared. RESULTS: A total of 1,187 patients were identified. One hundred eighty-four patients underwent a CHP, consisting of 99 acetabular wall fractures, 45 elementary acetabular fractures, and 40 associated acetabular fractures. There was no notable difference in any surgical site infection, thromboembolic events, transfusion rates, 30-day revision surgery, and readmission, regardless of the fracture pattern when controlling for comorbidities. Total hospital length of stay was shorter for patients who underwent a CHP for acetabular wall fractures or elementary acetabular fractures (P < 0.001). CONCLUSION: This combined surgical approach appears to have a similar 30-day risk profile when compared with ORIF alone regardless of the fracture pattern.