A comparison study: Bilateral total knee arthroplasty with and without surgical navigation

摘要

Introduction: A retrospective study was performed to validate the use of surgical navigation for bilateral total knee arthroplasty (TKA). Some surgeons around the country have advocated that simultaneous bilateral TKA should be avoided [1] as it can result in excessive intramedullary (IM) fat burden to the system, influencing pulmonary and hemodynamic stability intraoperatively. We have not had that experience in our practice and continue offer simultaneous bilateral TKA to the appropriate patients. The goal of this study was to evaluate the difference in accuracy and safety for patients undergoing bilateral TKA with and without surgical navigation. We evaluated several intraoperative parameters, such as changes in oxygen saturation (SaO2), blood pressure (BP) or heart rate (HR), which have been associated with the incidence of fat embolization [2-4]. The use of surgical navigation involves a technique that does not invade the medullary canals of the femur or tibia, and thus (at least theoretically) should involve less displacement of bone marrow into the venous system.