Comparison of Bleeding Following Two Different Systems of Total Knee Arthroplasty: Medial Pivot Versus Posterior Stabilizer

Background: Bleeding is the most common post-operative complication of knee arthroplasty. Arthroplasty systems with posterior cruciate ligaments potentially affected the amount of postoperative bleeding due to a lower need for bone cutting. Objectives: In this study, two types of prosthesis, including preserving and not preserving posterior cruciate ligament (PCL), were compared in terms of post-operative bleeding. Methods: In the current cohort study, 100 patients participated in this study and were divided to two groups: 50 patients were treated by using posterior stabilized (PS) system and 50 patients were treated through the Wright cruciate retaining (CR) system with a medial pivot mechanism. Blood loss during surgery and hemoglobin and hematocrit levels were measured for three days

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