Abstract
To study the pattern of migration and clinical results up to 10years of uncemented versus cemented fixation of the femoral component in total knee arthroplasty. Randomized controlled trial was conducted of 41 patients (23 women, 18 men) under the age of 60years using radiostereometric analysis. About two-thirds of the cemented implants and half of the uncemented implants stabilized between 2 and 10years, while the remainder displayed a small annual increase of maximum total point motion of 0.09-0.10mm/year. At 10years there were no statistically significant differences in migration or clinical results between the groups. Uncemented fixation with titanium fiber mesh coating of the femoral component in total knee arthroplasty works equally as well as cemented fixation up to 10years. An annual migration of 0.1mm seems compatible with excellent long-term performance. I.
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