Mobile-bearing Total Knee Prostheses Reduce Axial Rotational Constraint Torque
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چکیده
INTRODUCTION: The current study compared in-vitro tibiofemoral axial rotational constraint between 2 posterior stabilized mobile-bearing knee prosthesis and their fixed-bearing counterparts. It was demonstrated that both mobile-bearing knees induced significantly less constraint torque compared to their fixed-bearing counterparts. Highly-constrained design of the fixed-bearing knees substantially limited their range of axial rotation. The currents results provided further evidence that mobilebearing knee prosthesis could reduce load transmitted to the boneimplant interface and potentially promote post-operative component integration and long-term fixation.
منابع مشابه
Micromotion at the tibial plateau in primary and revision total knee arthroplasty: fixed versus rotating platform designs.
OBJECTIVES Initial stability of tibial trays is crucial for long-term success of total knee arthroplasty (TKA) in both primary and revision settings. Rotating platform (RP) designs reduce torque transfer at the tibiofemoral interface. We asked if this reduced torque transfer in RP designs resulted in subsequently reduced micromotion at the cemented fixation interface between the prosthesis comp...
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