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The stability of the cemented tibial component of total knee arthroplasty

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Author

Summary, in English

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.

Publishing year

2004

Language

English

Pages

775-782

Publication/Series

Journal of Arthroplasty

Volume

19

Issue

6

Document type

Journal article

Publisher

Elsevier

Topic

  • Orthopedics

Keywords

  • Roentgen
  • tibial posterior slope
  • posterior-stabilized
  • total knee arthroplasty
  • posterior cruciate-retaining
  • stereophotogrammetry

Status

Published

ISBN/ISSN/Other

  • ISSN: 0883-5403