Comparison of mechanical and nonmechanical failure rates associated with rotating hinged total knee arthroplasty in nontumor patients.
J Arthroplasty
; 28(1): 62-7.e1, 2013 Jan.
Article
en En
| MEDLINE
| ID: mdl-23217527
ABSTRACT
Rotating hinge total knee arthroplasty (TKA) has had acceptable to poor results in terms of clinical outcomes and survivorship, leading to skepticism with regard to its use. A total of 271 hinged TKAs performed between 1998 and 2008 were studied to determine survivorship and factors affecting survivorship. A median survivorship of 6.9 years was found for the best-case cohort (n = 111), and 4.1 years, for the worst-case group (n = 174). Of the 111 patients, 51 (45.9%) experienced a failure that required reoperation, with more than half of these (29/51, or 56.9%) due to nonmechanical modes of failure. Comparison of the kinematic hinge implants with the distal femoral replacements showed that the Kaplan-Meier survivorship was slightly higher for the patients with distal femoral replacements, although this was not significant (P = .962). Our study suggests that the hinge TKA is well designed and provides acceptable survivorship in healthy patients who do not have nonmechanical complications.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Diseño de Prótesis
/
Falla de Prótesis
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Artroplastia de Reemplazo de Rodilla
/
Prótesis de la Rodilla
Tipo de estudio:
Diagnostic_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
/
Male
Idioma:
En
Año:
2013
Tipo del documento:
Article