• L Rizzi, P Bertacchi, L M Ghezzi, P Bellavita, and G Scudeller.
• Department of Orthopedics, Matteo Rota Orthopedic Institute, Bergamo, Italy.
• Acta Orthop Scand. 1998 Feb 1;69(1):31-4.

AbstractWe conducted a prospective controlled study on 161 patients who underwent primary or revision total hip or knee arthroplasty to assess the efficacy and limitations of postoperative blood salvage. The actual quantity of blood salvaged after washing, the theoretical increase in hemoglobin concentration caused by its reinfusion and the cost of this procedure were studied. The mean amount of packed red cells after washing was 117 g. The average increase in hemoglobin concentration, which theoretically would have been achieved by retransfusion, was 0.47 g/dL. One third of the devices used were discarded as not effective enough and, in order to obtain an increase of 1 g/dL in the hemoglobin concentration, an average of 3.4 postoperative Solcotrans Plus Orthopaedic devices were used. To obtain the same increase in hemoglobin concentration as that given by an allogeneic blood transfusion, the overall cost of materials alone was more than five times the price of a single blood unit transfusion.

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