Are Patients Getting Repeat Hip Replacement Surgery More Likely to Have Blood Clots Than Those Having Their First Hip Replacement?

Revision total hip arthroplasty (THA) had a higher rate of deep vein thrombosis (DVT) at 0.6% compared to primary THA at 0.4% (P = .016).

• There was no significant difference in the rate of pulmonary embolism (PE) between revision THA (0.3%) and primary THA (0.2%) (P = .116).
• After controlling for confounding variables, revision surgery was not identified as a risk factor for DVT or PE.
• Independent risk factors for DVT included age over 70 years, malnutrition, infection, prolonged operating time, general anesthesia, high ASA classification, and kidney disease.
• The probability of DVT varied significantly, ranging from 0.2% with no risk factors to 10% when all identified risk factors were present.
• Independent risk factors for PE included age over 70 years, African American ethnicity, and prolonged operating time, with probabilities ranging from 0.2% to 1.1%.

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