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. The control group was patients undergoing THA who did not have a history of acetabular fracture. There were 430,349 control primary THAs, 462 aTHAs, 675 saTHAs, and 1,162 dTHAs.
Results: After adjusting for age, sex, region, and comorbidities, patients who had an aTHA and saTHA experienced statistically significant increased odds of revision, dislocation, and periprosthetic fracture compared to primary THA without a history of acetabular fracture. Similarly, dTHA was associated with increased odds of revision, dislocation, and periprosthetic fractures compared to primary THA. In the multivariate analysis, aTHA had statistically significant higher rates of dislocation when compared to dTHA.
Conclusions: Patients who had a history of acetabular fractures undergoing aTHA, saTHA, or dTHA have significantly increased rates of revision, periprosthetic fracture, and dislocation compared to primary THA in those who did not have a history of acetabular fractures.
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| http://dx.doi.org/10.1016/j.arth.2024.04.046 | DOI Listing |
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