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Poster: 34What Is the Blood Transfusion Rate Following Revision THA With MajorAcetabular Reconstruction?*Moussa Hamadouche - Hopital Cochin, APHP, Paris 5 - Paris, FranceLoren Bellamy - Cochin - Paris, FranceMerian Osman - Cochin - Paris, France*Email: Moussah@club-internet.frIntroduction: The aim of this study was to evaluate blood loss and blood transfusion ratefollowing major acetabular reconstruction.Methods: From a computer database, 27 cemented revision THAs (sepsis excluded) dealingwith AAOS Type III acetabular defect performed by a single surgeon between January 2006and December 2007 were indentified. The median age of the patients was 73 years (23 – 81)and the median BMI was 24.2 Kg/m 2 (16.6 – 34.1). In all cases, revision was performed onboth the femoral and acetabular side, and structural fresh frozen allograft bone was used toachieve complete acetabular bone stock restoration. All patients received blood salvagemeasures including preoperative erythropoietin in 12 patients, intraoperative cell salvage in 17patients, and fibrinolytic inhibitor in 22 patients.Results: The median operative time was 330 minutes (150 – 435). The median blood lossvolume was 4332 ml (1320 – 9498) while the median blood volume of the patients was 4300 ml(3092 – 6143). Blood loss was significantly correlated with the operative time (R 2 = 0.197, p =0.02). Of the 27 patients, 21 (78%) required allogenic transfusion with a median of 3 units (0 –17) of packed red blood cells. The number of allogenic units transfused was highly correlatedwith the estimated blood loss (R 2 = 0.71, p < 0.0001). No early medical or surgicalcomplication was recorded.Discussion and Conclusion: This study indicates that reconstruction of major acetabulardeficiencies leads to a median blood loss close to patients’ blood mass. However, although thesepatients frequently required allogenic transfusion, the use of adequate blood salvage measureswas associated to a relatively low number of units required.file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]