The purpose of this study is to determine the efficacy of a negative pressure wound therapy (NPWT) system after revision total knee and hip arthroplasty in patients at high risk for infection. It is hypothesized that the use of NPWT system (i.e., Prevena) in high risk patients prevents wound complications and decreases reoperation rates.
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Number of Patients With Wound Complications
Timeframe: Within 90 days after surgery
Re-operation Rates
Timeframe: Within 90 days after surgery
Readmission Rates
Timeframe: Within 90 days after surgery