The stability of the cemented tibial component of total knee arthroplasty

Research output: Contribution to journalArticle

Abstract

Micromotion of the tibial component in 40 knee arthroplasties for gonarthrosis was studied rising Roentgen stereophotogrammetric analysis. The stability of this component was assessed for 2 years' postoperatively. in all arthroplasties, an attempt was made to reconstruct the preoperative posterior slope. Posterior cruciate-retaining (CR) and posterior-stabilized (PS) components showed at 2 years a maximum total point motion of 0.6 +/- 0.4 mm and 0.7 +/- 0.5 mm, respectively. Whereas 92.5% of the implants were determined to be stable, 1 of the CR group and 2 of the PS group displayed migration between the first and the second year of at least 0.2 mm. A negative correlation between subsidence of the tibial component at 2 years of follow-up and the difference between preoperative and postoperative tibial slope was found. Consequently, we suggest that restoring the original posterior slope of the tibial plateau must be a goal of tibial component implantation.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Orthopedics

Keywords

  • Roentgen, tibial posterior slope, posterior-stabilized, total knee arthroplasty, posterior cruciate-retaining, stereophotogrammetry
Original languageEnglish
Pages (from-to)775-782
JournalJournal of Arthroplasty
Volume19
Issue number6
Publication statusPublished - 2004
Publication categoryResearch
Peer-reviewedYes