Posterior cruciate ligament retaining versus sacrificing total knee replacement surgery: A comparison of the functional outcome

Background: Theoretically, the role of Posterior cruciate ligament in total knee replacement it has been suggested that PCL retaining knees can produce femoral rollback, which helps to increase the range of flexion and prevents posterior translation in the patients. However, this in effect, reduces loosening and excessive polyethylene wear by decreasing the shear stresses at the fixation surfaces. We conducted a prospective study to compare the retention of PCL using a standard PCL–retaining with cruciate sacrificing cemented total knee replacement and assesed the functional outcome of both using functional knee scores and WOMAC score during the period between December 2020 to December 2022