Comparison of Postoperative Morbidity Between Simultaneous Bilateral and Staged Bilateral Total Knee Arthroplasties: Serological Perspective and Clinical Consequences

Abstract The present study compared simultaneous and two-staged (stages 1 and 2 with 8-month interval on average) bilateral TKAs in terms of postoperative serological status and clinical consequences. The decrease in hemoglobin over 2 weeks postoperatively was similar between groups. C-reactive protein levels and creatine phosphokinase index peaking on day 2 were significantly higher in the simultaneous group than in either staged group ( P