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 language | English |
|---|---|
| Pages (from-to) | 775-782 |
| Number of pages | 8 |
| Journal | Journal of Arthroplasty |
| Volume | 19 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Sep 2004 |
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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 journal › Article
}
TY - JOUR
T1 - The stability of the cemented tibial component of total knee arthroplasty
T2 - Posterior cruciate-retaining versus posterior-stabilized design
AU - Catani, Fabio
AU - Leardini, Alberto
AU - Ensini, Andrea
AU - Cucca, Giuseppe
AU - Bragonzoni, Laura
AU - Toksvig-Larsen, Soren
AU - Giannini, Sandro
PY - 2004/9
Y1 - 2004/9
N2 - 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.
AB - 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.
KW - posterior cruciate-retaining
KW - posterior-stabilized
KW - Roentgen stereophotogrammetry
KW - tibial posterior slope
KW - total knee arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=4444297029&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4444297029&partnerID=8YFLogxK
U2 - 10.1016/j.arth.2004.01.013
DO - 10.1016/j.arth.2004.01.013
M3 - Article
VL - 19
SP - 775
EP - 782
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
SN - 0883-5403
IS - 6
ER -