Mobile Bearing Knees: Superior to Fixed Bearing?
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منابع مشابه
Wear Comparison of Fixed vs. Mobile Bearing Total Knee Replacements
INTRODUCTION: The debate between fixed-bearing and mobile-bearing systems continues due to the lack of clinical evidence showing survivorship of one to be superior to the other [1,2]. Delport et al report similar tibiofemoral kinematic patterns with respect to axial rotation during flexion and also femorotibial translation [3]. Conversely, Huang et al show a significant difference between the t...
متن کاملFixed or mobile-bearing total knee arthroplasty
Fixed and mobile-bearing in total knee arthroplasty are still discussed controversially. In this article, biomechanical and clinical aspects in both fixed and mobile-bearing designs were reviewed. In biomechanical aspect, the mobile-bearing design has proved to provide less tibiofemoral contact stresses under tibiofemoral malalignment conditions. It also provides less wear rate in in-vitro simu...
متن کاملMobile-bearing Total Knee Prostheses Reduce Axial Rotational Constraint Torque
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 substantial...
متن کاملMobile- versus fixed-bearing modern total knee replacements – which is the more patella-friendly design?
OBJECTIVES Our study aimed to examine if a mobile-bearing total knee replacement (TKR) offered an advantage over fixed-bearing designs with respect to rates of secondary resurfacing of the patella in knees in which it was initially left unresurfaced. METHODS We examined the 11-year report of the New Zealand Joint Registry and identified all primary TKR designs that had been implanted in > 500...
متن کاملOne Year After Navigated Total Knee Replacement, No Clinically Relevant Difference Found Between Fixed Bearing and Mobile Bearing Knee Replacement in a Double-Blind Randomized Controlled Trial
BACKGROUND The mobile bearing designs have not yet been shown to improve clinical outcome of total knee arthroplasty (TKA). In this prospective randomized study, we compared the short-term clinical results of a mobile bearing implant with those of the fixed bearing version of the same implant. METHODS We randomized 100 knees into two double-blind groups who received either the fixed (FB, 52 k...
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