Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2004 Oct;28(5):282-5.
doi: 10.1007/s00264-004-0562-1. Epub 2004 Aug 14.

Prosthetic alignment and sizing in computer-assisted total knee arthroplasty

Tomoyuki Matsumoto  1 , Nobuhiro Tsumura, Masahiro Kurosaka, Hirotsugu Muratsu, Ryosuke Kuroda, Katsuhiko Ishimoto, Kazuo Tsujimoto, Ryoichi Shiba, Shinichi Yoshiya
Affiliations
Comparative Study

Prosthetic alignment and sizing in computer-assisted total knee arthroplasty

Tomoyuki Matsumoto et al. Int Orthop. 2004 Oct.

Abstract
in English, French

We implanted 60 posterior stabilized total knee prostheses (P.F.C. Sigma, DePuy, Warsaw, USA). In 30 cases, we used a CT-free navigation system (Vector Vision, Brain LAB, Heimstetten, Germany), and in 30 matched-paired controls, we used a conventional manual implantation. We compared postoperative long-leg radiographs in the two groups. The results revealed a significant difference in favor of navigation. In addition, we compared the preoperative anteroposterior dimension of the femoral condyle with the postoperative value. While there were no significant differences in the preoperative anteroposterior dimension of the femoral condyle between the two groups, the postoperative value in the navigation group was significantly larger than that of the preoperative value. Therefore, surgeons using navigation systems should guard against the possibility of oversizing when determining the size of the femoral component.

Nous avons implanté 60 prothèses totales postéro-stabilisées du genou (P.F.C. Sigma, DePuy). Dans 30 cas nous avons utilisé un système de navigation sans scanner (Vector vision R, Laboratoire du Cerveau, Heimstetten, Allemagne) et dans 30 contrôles appairés nous avons utilisé une implantation manuelle habituelle. Nous avons comparé les grandes radiographies postopératoires des membres inférieurs dans les deux groupes. Les résultats ont révélé une différence notable en faveur de la navigation. De plus nous avons comparé la dimension antéro-postérieure du condyle fémoral avant l’intervention avec la valeur postopératoire. Tandis qu’il n’y avait pas de différence notable dans la dimension antéro-postérieure préopératoire du condyle fémoral entre les deux groupes, la valeur postopératoire dans le groupe de la navigation était nettement plus grande que la valeur préopératoire. Par conséquent les chirurgiens qui utilisent des systèmes de navigation doivent prendre garde à ne pas implanter un composant fémoral sur-dimensionné.

PubMed Disclaimer

Figures

Fig. 1
Fig. 1
Measurement of the anteroposterior dimension of the femoral condyle
Fig. 2A, B
Fig. 2A, B
Illustration of the relationship between the femoral component and the distal femur with the femoral anatomical and mechanical axis. A In the manual group, the femoral component is implanted perpendicular to the anatomical axis. B In the navigation group, the femoral component is implanted perpendicular to the mechanical axis
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Daluga J Arthroplasty. 1991;6:119. - PubMed
    1. Delp Clin Orthop. 1998;354:49. doi: 10.1097/00003086-199809000-00007. - DOI - PubMed
    1. Hart Int Orthop. 2003;27:366. doi: 10.1007/s00264-003-0501-6. - DOI - PMC - PubMed
    1. Insall Clin Orthop. 1989;248:13. - PubMed
    1. Jeffery J Bone Joint Surg Br. 1991;73:709. - PubMed

Publication types

MeSH terms