Primary posterior stabilized total knee arthroplasty: analysis of different instrumentation.

Background: Intercondylar femoral bone removal during posterior stabilized (PS) total knee arthroplasty (TKA) makes many cruciate substituting implant designs less appealing than cruciate retaining implants. Bone stock conservation is considered fundamental in the prevision of future revision surgeries. The purpose of this study was to compare the quantity of intercondylar bone removable during PS housing preparation using three contemporary PS TKA instrumentations.

The effects of femoral component design on the patello-femoral joint in a PS total knee arthroplasty.

Introduction: Anterior knee pain following TKA performed utilizing the PFC Sigma system still represents a cause of failure. The purpose of this study was to evaluate whether or not a recent change in the femoral design (PFC Sigma PS) had a positive impact on the patello-femoral complication rate.

Materials And Methods: A consecutive series of 100 TKA using the PFC Sigma PS system was followed prospectively for a minimum of 3 years.