• T A Xenakis, K N Malizos, Z Dailiana, T Koukoubis, E Zervou, C Golegou, and P N Soucacos.
• Department of Orthopaedic Surgery, University of Ioannina, School of Medicine, Greece.
• Acta Orthop Scand Suppl. 1997 Oct 1; 275: 135-8.

AbstractWe performed a prospective study to determine the effect of postoperative collection and reinfusion of unwashed, filtered, salvaged blood alone and in combination with preoperative predeposited blood on the transfusion requirements of 375 patients treated with a total hip or total knee replacement. 208 patients were managed with postoperative blood salvage with use of the CBC ConstaVac autotransfusion system and closed suction drainage. Another 50 patients predeposited 1-4 units of autologous blood, before the operation, in addition to postoperative blood salvage. The remaining 117 patients were used as controls and were transfused with homologous blood from the blood bank. Postoperative reinfusion of salvaged blood decreased the need for homologous transfusion after hip and knee arthroplasty (mean 2.7 units) compared to controls (mean 4.2 units). The combination of postoperative reinfusion of salvaged blood and predeposited autologous blood was associated with the lowest requirements for homologous blood transfusions (mean 1.7 units).

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