Migration and clinical outcome of mobile-bearing versus fixed-bearing single-radius total knee arthroplasty.

ABSTRACT: Background and purpose - Mobile-bearing total knee prostheses (TKPs) were developed in the 1970s in an attempt to increase function and improve implant longevity. However, modern fixed-bearing designs like the single-radius TKP may provide similar advantages. We compared tibial component migration measured with radiostereometric analysis (RSA) and clinical outcome of otherwise similarly designed cemented fixed-bearing and mobile-bearing single-radius TKPs. Patients and methods - RSA measurements and clinical scores were assessed in 46 randomized patients at baseline, 6 months, 1 year, and annually thereafter up to 6 years postoperatively. A linear mixed-effects model was used to analyze the repeated measurements. Results - Both groups showed comparable migration (p = 0.3), with a mean migr

SUBMITTER: Van Hamersveld KT 

PROVIDER: S-EPMC5901517 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature