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Background  Total knee arthroplasty (TKA) has become the treatment of choice for end-stage hemophilic arthropathy of the knee. Theoretically in hemophilia A, perioperative continuous infusion (CI) of factor VIII (FVIII) would provide a more consistent FVIII level than general bolus injections (BI) in TKA. Current study was designed to evaluate the effectiveness of CI of coagulation factor concentrates during the perioperative period compared to BI.    Methods  A total of 42 TKAs were performed in 31 patients with severe hemophilia A. Under the supervision of a multidisciplinary hemophilia team, CI and BI were monitored during application of a standardized regimen. Perioperative clinical parameters including postoperative hemoglobin drop, drained blood volume, transfusion rate, total consumption of FVIII, and perioperative complications were assessed.    Results  The difference in the postoperative hemoglobin drop was significant between two groups with a lower decrease in the CI group ( p  = 0.002). The drained blood volume for postoperative 24 h was significantly lower in the CI than the BI groups ( p  = 0.037). Total consumption of factor concentrates for postoperative 5 days was greater in the CI group than in the BI group ( p  = 0.000). One postoperative hematoma and wound dehiscence occurred in BI group and no other complication developed.    Conclusions  Although good control of hemostasis could be achieved using either method during the perioperative period of TKA, CI seems more tolerable and effective than BI to provide perioperative blood management undergoing TKA in patients with hemophilia.    Trial registration  The study was retrospectively registered in WHO ICTRP under identifier  KCT0002404  (date of registration: August 04, 2017).

bmc musculoskeletal disorders

Comparison of continuous infusion versus bolus injection of factor concentrates for blood management after total knee arthroplasty in patients with hemophilia