Etiology and Complications of Early Aseptic Revision Total Hip Arthroplasty Within 90 Days

Structured Abstract Introduction The etiology, complications, and re-revision risks of early aseptic revision THA within 90 days is insufficiently documented. Methods A national insurance claims database (PearlDiver Technologies) was queried for patients who underwent unilateral aseptic revision total hip arthroplasty within 90 days of the index procedure using administrative codes. Patients who underwent revision for infection, without minimum two-year follow-up, and under age 18 were excluded. This cohort was matched based on gender, age, and Charlson Comorbidity Index to a control group of patients who underwent primary THA without revision within 90 days. Two-year re-revision and 90-day complication rates were recorded. Chi-square and Fisher’s exact tests were used as appropriate for statistical comparison. Results Four hundred and two patients met the inclusion criteria for early aseptic revision within 90 days of the index procedure and were matched to the control group. The overall two-year re-revision rate was higher in the early revision group compared to control (14.9% vs 2.5%, p Conclusion Early aseptic revision THA is associated with significantly higher 90-day complication rates and two-year re-revision rates compared to a control group of primary THA without revision. The most common reasons for acute early revision were dislocation, fracture, and mechanical loosening. Level of Evidence Level III