Abstract
To present representative data of long-term survivorship and clinical outcome for the PFC total knee arthroplasty (PFC-TKA). A consecutive series of 141 TKA was followed for a mean of 13 years (range, 11–16 years). Sixty-five knees were evaluated, 30 of these clinically and radiographically. Twenty-eight knees could only be assessed with the use of a questionnaire. Six patients were living in nursing homes. Fifty-four patients (65 knees) had died. Eleven had undergone a revision. One patient was considered lost to follow-up. With re-operation for any reason as the endpoint, the 10-year survival rate was 92% (n = 91 patients at risk), and the 14-year survival rate was 91% (n = 12). With aseptic loosening of the implant as the endpoint, the 10- and 14-year survival rates were 97%. The mean Knee Society and function scores were 76 and 48 points, respectively. In this multi-surgeon series modular fixed-bearing TKA had good clinical and radiographic results with excellent long-term survivorship.
Résumé
Le but de cette étude est de présenter des données concernant la survie à long terme et le devenir clinique des prothèses totales de genou de type PFC. Une série consécutive de 141 prothèses ont été suivies en moyenne 13 ans (de 11 à 16 ans). 65 genoux ont été évalués, 30 sur le plan clinique et radiographique, 28 uniquement à l’aide d’une questionnaire. 6 patients vivent en institution et ne peuvent se déplacer et 54 patients (65 genoux) sont décédés. 11 patients ont nécessité une réintervention. Un seul patient est considéré comme perdu de vue. si l’on considère que la réintervention est le critère analysé dans la courbe de survie à 10 ans, celle-ci est de 92% (n = 91 patients) et à 14 ans le taux de suivi est de 91% (n = 12). Si l’on considère maintenant comme critère de la courbe de survie le descellement aseptique à 10 et 14 ans, la courbe de survie est à 97%. Le score de la Knee Society et le score fonctionnel sont respectivement à 76 et 48 points. En conclusion, cette étude multi-opérateurs d’une prothèse totale du genou modulaire mais à plateau fixe a montré une bonne évolution clinique et radiologique avec une survie à long terme.
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Approval of the ethics committee of the University of Heidelberg was given for this study on May 27, 2004 under the registration no. 097/ 2004.
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Parsch, D., Krüger, M., Moser, M.T. et al. Follow-up of 11–16 years after modular fixed-bearing TKA. International Orthopaedics (SICOT) 33, 431–435 (2009). https://doi.org/10.1007/s00264-008-0543-x
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DOI: https://doi.org/10.1007/s00264-008-0543-x