The stability of the cemented tibial component of total knee arthroplasty

Posterior cruciate-retaining versus posterior-stabilized design

Fabio Catani, Alberto Leardini, Andrea Ensini, Giuseppe Cucca, Laura Bragonzoni, Soren Toksvig-Larsen, Sandro Giannini

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Micromotion of the tibial component in 40 knee arthroplasties for gonarthrosis was studied using 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.

Original languageEnglish
Pages (from-to)775-782
Number of pages8
JournalJournal of Arthroplasty
Volume19
Issue number6
DOIs
Publication statusPublished - Sep 2004

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Knee Replacement Arthroplasties
Arthroplasty

Keywords

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

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

The stability of the cemented tibial component of total knee arthroplasty : Posterior cruciate-retaining versus posterior-stabilized design. / Catani, Fabio; Leardini, Alberto; Ensini, Andrea; Cucca, Giuseppe; Bragonzoni, Laura; Toksvig-Larsen, Soren; Giannini, Sandro.

In: Journal of Arthroplasty, Vol. 19, No. 6, 09.2004, p. 775-782.

Research output: Contribution to journalArticle

Catani, Fabio ; Leardini, Alberto ; Ensini, Andrea ; Cucca, Giuseppe ; Bragonzoni, Laura ; Toksvig-Larsen, Soren ; Giannini, Sandro. / The stability of the cemented tibial component of total knee arthroplasty : Posterior cruciate-retaining versus posterior-stabilized design. In: Journal of Arthroplasty. 2004 ; Vol. 19, No. 6. pp. 775-782.
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