Abstract
This study examines the association between postoperative coronal tibiofemoral alignment and revision surgery in knee arthroplasty. We retrospectively reviewed the case notes and post-operative long-leg radiographs of 197 Kinemax knee arthroplasty with mean follow-up of 9 years (SD 2.2). They were divided into three groups: neutral, valgus and varus. Revision or decision to revise was used as a hard endpoint. There was no statistical difference among the three groups (p=0.78). We conclude that aseptic failure of a total knee is multifactorial. Coronal tibio-femoral alignment may not be as important a cause of failure as has been previously thought.
Résumé
Cette étude a pour but d’examiner l’alignement des éléments prothétiques dans la chirurgie de reprise de prothèse totale du genou. Nous avons de façon rétrospective revu en 1997 une série de prothèses de type Kinemax avec un suivi moyen de 9 ans (SD 2.2). La population a été divisée en trois groupes : Neutre, Valgus et Varus. Pour les courbes de survie ont été utilisées comme référence la révision ou la décision de révision. Nous pouvons conclure que le descellement aseptique d’une prothèse totale du genou est multi factorielle. L’alignement tibio fémoral n’est pas une cause importante d’échec comme l’on pouvait le penser auparavant.
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Morgan, S.S., Bonshahi, A., Pradhan, N. et al. The influence of postoperative coronal alignment on revision surgery in total knee arthroplasty. International Orthopaedics (SICO 32, 639–642 (2008). https://doi.org/10.1007/s00264-007-0391-0
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DOI: https://doi.org/10.1007/s00264-007-0391-0