Comparaison des causes d’échecs entre prothèse totale de genou primaire et reprise de prothèse totale de genou - 31/03/18
Comparison of mode of failure between primary and revision total knee arthroplasties
Abstract |
Introduction |
Cognizance of common reasons for failure in primary and revision TKA, together with their time course, facilitates prevention. However, there have been few reports specifically comparing modes of failure for primary vs. revision TKA using a single prosthesis. The goal of the study was to compare the survival rates, modes of failure, and time periods associated with each mode of failure, of primary vs. revision TKA.
Hypothesis |
The survival rates, modes of failure, time period for each mode of failure, and risk factors would differ between primary and revision TKA.
Material and methods |
Data from a consecutive cohort comprising 1606 knees (1174 patients) of primary TKA patients, and 258 knees (224 patients) of revision TKA patients, in all of whom surgery involved a P.F.C® prosthesis (Depuy, Johnson & Johnson, Warsaw, IN), was retrospectively reviewed. The mean follow-up periods of primary and revision TKAs were 9.2 and 9.8 years, respectively.
Results |
The average 10- and 15-year survival rates for primary TKA were 96.7% (CI 95,±0.7%) and 85.4% (CI 95%,±2.0%), and for revision TKA 91.4% (CI 95%,±2.5%) and 80.5% (CI 95%,±4.5%). Common modes of failure included polyethylene wear, loosening, and infection. The most common mode of failure was polyethylene wear in primary TKA, and infection in revision TKA. The mean periods (i.e., latencies) of polyethylene wear and loosening did not differ between primary and revision TKAs, but the mean period of infection was significantly longer for revision TKA (1.2 years vs. 4.8 years, P=0.003).
Discussion |
Survival rates decreased with time, particularly more than 10 years post-surgery, for both primary and revision TKAs. Continuous efforts are required to prevent and detect the various modes of failure during long-term follow-up. Greater attention is necessary to detect late infection-induced failure following revision TKA.
Level of evidence |
Case-control study, Level III.
Le texte complet de cet article est disponible en PDF.Keywords : Knee, Arthroplasty, Primary, Revision, Mode of failure
| ☆ | Cet article peut être consulté in extenso dans la version anglaise de la revue Orthopaedics & Traumatology: Surgery & Research sur Science Direct (sciencedirect.com) en utilisant le DOI ci-dessus. |
Vol 104 - N° 2
P. 131 - avril 2018 Retour au numéro
Article précédent
- Les paramètres trochléens : étude comparative entre trochlée native et trochlée prothétique selon un alignement mécanique ou cinématique
- C. Rivière, F. Iranpour, S. Harris, E. Auvinet, A. Aframian, S. Parratte, J. Cobb
- Contraintes de contact articulaire fémorotibial dans les prothèses totales de genou à plateau fixe
- K. Murakami, S. Hamai, T. Moro-oka, K. Okazaki, H. Higaki, T. Shimoto, S. Ikebe, Y. Nakashima
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?