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4) reported that bilateral use of blood reinfusion devices in simultaneous bilateral TKA was safe and effective for reducing allogeneic blood transfusion requirements. While the reinfusion devices reduced the rates of allogeneic transfusion after TKA, most reports are limited to unilateral TKA. Many studies have compared a blood reinfusion device and a standard suction drain in arthroplasty 4, 7- 12). However, because of complications and the cost of allogeneic blood transfusions, an alternative method of using an autologous blood reinfusion device has been developed 6- 8). Allogeneic blood transfusions have been commonly used to compensate for blood loss in such cases 1, 3). Considerable amount of bleeding occurs in sequential or simultaneous bilateral TKA 2, 4, 5). Keywords: Knee, Arthroplasty, Reinfusion, Blood transfusionĪlthough osteoarthritis (OA) of the knee is often bilateral, there have been controversies about performing bilateral total knee arthroplasty (TKA) in a single stage 1- 3). ConclusionsĬompared with use of bilateral suction drains, unilateral use of reinfusion device was not advantageous in reducing allogeneic transfusion in one-stage bilateral TKA. However, the study group had significantly lower Hb and Hct values by the first day postoperatively and significantly lower platelet count values by the third day postoperatively than the control group (p<0.05). There were no significant differences in the total drain output and required amount of allogeneic blood transfusions between groups (p>0.05). The total drain output and the amount of allogeneic blood transfusion were also compared. The hemoglobin (Hb) level, the hematocrit (Hct) and the platelet count were checked preoperatively, immediately postoperatively, and the third and seventh days postoperatively. In 50 of these patients (study group), a blood reinfusion device was applied on one knee and a standard suction drain on the other, and they were compared with 50 matched controls who received bilateral suction drains (control group). We carried out a retrospective cohort study on 100 patients having one-stage bilateral TKA.

To assess the efficacy of unilateral use of a blood reinfusion device in one-stage bilateral total knee arthroplasty (TKA).