Mobile-Bearing Total Knee Arthroplasty

International Comparative Evaluation of Knee Replacement with Fixed or Mobile-Bearing Posterior-Stabilized Prostheses

“…One meta-analysis demonstrated an early reduction in anterior knee pain for patients with mobile-bearing total knee prostheses 7 . However, other studies have not identified any clinical or radiographic benefit for the use of mobile-bearing compared with fixed-bearing total knee prostheses 5,[9][10][11] . A number of randomized controlled trials have examined comparative revision rates and found no difference, but these studies had limited follow-up and small numbers of patients 5,10 .…”

“…However, other studies have not identified any clinical or radiographic benefit for the use of mobile-bearing compared with fixed-bearing total knee prostheses 5,[9][10][11] . A number of randomized controlled trials have examined comparative revision rates and found no difference, but these studies had limited follow-up and small numbers of patients 5,10 . In contrast, the authors of larger, registry-based studies have reported higher revision rates for mobile-bearing total knee prostheses 6,13 .…”

“…It has also been argued that mobile bearings have the potential to enhance patellar tracking, reduce pain, enhance function, and reduce patellofemoral-related revision 8 . Many studies have compared clinical and radiographic outcomes of mobile and fixed-bearing total knee prostheses 4,5,7,[9][10][11][12] . One meta-analysis demonstrated an early reduction in anterior knee pain for patients with mobile-bearing total knee prostheses 7 .…”

Comparison of Fixed and Mobile-Bearing Total Knee Arthroplasty at a Mean Follow-up of 116 Months

“…Carothers et al reported a cumulative fifteen-year survivorship of 96.4% in a meta-analysis of mobilebearing knee arthroplasties 25 . In another study, Kim et al reported on a series of 146 patients undergoing simultaneous bilateral total knee arthroplasties with use of an anatomic modular fixedbearing design (AMK; DePuy, Warsaw, Indiana) in one knee and an LC RPS mobile-bearing design (DePuy) in the other.…”

CORR Insights®: Rotating-platform TKA No Different from Fixed-bearing TKA Regarding Survivorship or Performance: A Meta-analysis

“…Indeed, a previous metaanalysis comparing three different types of mobile-bearing systems (rotating platform, meniscal bearing, and AP-gliding types) found that the 15-year survivorship of rotating platform was greater than that of meniscal bearing (96.4% versus 86.5%) [6]. Another recent meta-analysis comparing the longevity of LCS 1 (DePuy Synthes, Warsaw, IN, USA) rotating platform with that of nonLCS 1 knees in the Swedish knee registry found that the 14-year survivorship of LCS 1 rotating-platform knees was greater than nonLCS 1 knees [9].…”