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Meta-Analysis
. 2009 Jun;33(3):593-7.
doi: 10.1007/s00264-008-0539-6. Epub 2008 Apr 3.

Computer navigation in total hip replacement: a meta-analysis

Rajiv Gandhi  1 , Anthony Marchie, Forough Farrokhyar, Nizar Mahomed
Affiliations
Meta-Analysis

Computer navigation in total hip replacement: a meta-analysis

Rajiv Gandhi et al. Int Orthop. 2009 Jun.

Abstract
in English, French

Proponents of navigated hip arthroplasty have suggested that it may increase the precision of acetabular component placement. We conducted a systematic review and meta-analysis to evaluate the validity of this theory. We searched, in duplicate, MEDLINE, EMBASE and the Cochrane Central Register of Controlled Trials for randomised trials comparing the use of computer navigation with the freehand technique for acetabular cup placement within the desired alignment. We assessed the methodological quality of the studies and abstracted the relevant data. Tests of heterogeneity and publication bias were performed. From the three studies included, there was no evidence of heterogeneity between studies. A total of 250 patients were entered into the analysis. The beneficial odds ratio for the number of outliers was 0.285 (95% confidence interval [CI]: 0.143 to 0.569; p < 0.001). We conclude that navigation in hip arthroplasty improves the precision of acetabular cup placement by decreasing the number of outliers from the desired alignment.

On peut penser que l’utilisation de la navigation au cours des prothèses de hanche va améliorer la précision du positionnement cotyloïdien. Nous avons conduit une étude systématique et une méta analyse de façon à valider cette théorieMéthode : les recherches ont été réalisé sur MEDLINE, EMBASE et COCHRANE, essais randomisés comparant l’utilisation de la navigation et l’utilisation des techniques classiques à main levée. Différents tests statistiques ont été réalisés.Résultat : à partir de 3 études inclues, il n’y a pas de différence entre ces 3 études. Un total de 250 patients ont été analysés, le ratio des hanches en dehors de la moyenne a été de 0,285 (95% CI: 0,143 et 0,569; p < 0,001). Nous pouvons affirmer que la navigation au cours de la prothèse totale de hanche permet une meilleure précision du positionnement de la cupule et diminue le nombre de cupules en mauvaise position.

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Figures

Fig. 1
Fig. 1
Search results and the selection procedure
Fig. 2
Fig. 2
Funnel plot calculation demonstrating no evidence of publication bias
Fig. 3
Fig. 3
Odds ratio for outliers from the accepted range comparing the navigation and control groups
See this image and copyright information in PMC

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