Acute Total Hip Arthroplasty Following Acetabular Fracture is Associated With a High Risk of Revision, Dislocation, and Periprosthetic Fracture.

Background: The aim of this study was to compare outcomes between acute, subacute, and delayed arthroplasty for acetabular fractures occurring within 1 week, from 1 week to 6 months, or more than 6 months before the index total hip arthroplasty (THA), versus THA without a history of acetabular fracture as a control.

Methods: We analyzed the records of patients undergoing primary THA who were enrolled in a national database for at least 2 years before and after the index procedure. Patients who had an initial diagnostic code for acetabular fracture occurring less than 1 week, from 1 week to 6 months, or at least more than 6 months before the THA were classified as acute THA (aTHA), subacute THA (saTHA), or delayed THA (dTHA), respectively.