Computerized navigation for total hip arthroplasty is associated with lower complications and ninety-day readmissions: a nationwide linked analysis

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The objective was to evaluate if the use of CA-THA was associated with lower complications in the first 90 days following THA compared with conventional THA.


The Nationwide Readmission Database (NRD) was queried to identify patients who underwent THA between 2012 and 2014. The primary outcome was arthroplasty-related complications within the first 90 days following THA. Multivariate models predicting the risk of complications, readmission, and revision-related readmission within 90 days of discharge were created.


A total of 309,252 patients with a minimum 90-day follow-up following elective primary THA were identified. After controlling for age, sex, comorbidities, indication, income, and type of insurance, the use of CA during THA resulted in a 12% reduced odds of 90-day complications (OR 0.88, 95% CI 0.77–0.99, p = 0.04).


The use of CA-THA resulted in lower 90-day complication rates and readmission rates compared with traditional THA after controlling for confounding variables. There was no significant difference in the rates of revision surgery between the groups within the first 90 days.

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Correspondence to Elizabeth B. Gausden.

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Conflict of interest

Dr. Elizabeth B. Gausden has no disclosures.

Dr. Joseph Popper has no disclosures.

Dr. Peter Sculco is a paid consultant for and receives research support from Intellijoint Surgical. Dr. Sculco is also a paid consultant for EOS imaging. This study did not use funds derived from Intellijoint Surgical.

Dr. Barret Rush has no disclosures.

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This article does not contain any studies with animals performed by any of the authors. As a large database study, informed consent was waived for this study.

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Gausden, E.B., Popper, J.E., Sculco, P.K. et al. Computerized navigation for total hip arthroplasty is associated with lower complications and ninety-day readmissions: a nationwide linked analysis. International Orthopaedics (SICOT) (2020) doi:10.1007/s00264-019-04475-y

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  • Computer-assisted total hip arthroplasty
  • Complications following total hip arthroplasty
  • THA