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no improvement in survivorship.
57%
482/846
approximately 15 degrees greater flexion.
14%
122/846
appreciable reduction in wear rates.
21%
181/846
a faster recovery profile.
4%
31/846
better quadriceps strength.
3%
23/846
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Survivorship is similar in the two groups. In a recent study, mobile-bearing TKAs showed a slightly higher maximum flexion than the total condylar fixed-bearing-type designs (112 degrees versus 108 degrees with no difference in recovery rate). Using a fixed-bearing or a mobile-bearing design did not seem to influence the recovery rate in early results after knee arthroplasty. Mobile-bearing arthroplasties are suggested, in theory, to offer a reduction in polyethylene wear; however, clinical studies have not yet proven this. Recovery rates have yet to be statistically seen as improved with either method. Differences in strength have not been shown.
2.8
(6)
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