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Computer assisted navigation in total knee arthroplasty: improved coronal alignment.
Kim, Steve J; MacDonald, Margot; Hernandez, Jaime; Wixson, Richard L.
Afiliación
  • Kim SJ; Department of Orthopaedic Surgery, Feinburg School of Medicine, Northwestern University, Chicago, Illinois, USA.
J Arthroplasty ; 20(7 Suppl 3): 123-31, 2005 Oct.
Article en En | MEDLINE | ID: mdl-16214013
The use of a computer navigation system is intended to optimize implant positioning. This study compares prospectively followed total knee arthroplasty (TKA) done with imageless computer-assisted navigation with a cohort of TKA done with manual instruments. Primary TKAs were performed on 147 knees, with 78 in the manual group and 69 in the navigated group. Coronal alignment was determined by postoperative full-length standing radiographs. The 2 groups had similar mean values for radiographic mechanical axis at 0.4 degrees . There was a larger variation in alignment in the manual group, with 58% of the manual group within 2 degrees of neutral compared with 78% of the navigated group (P = .008). The navigation system reproducibly resulted in a more reliable reproduction of the mechanical axis.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Artroplastia de Reemplazo de Rodilla / Cirugía Asistida por Computador Tipo de estudio: Observational_studies Límite: Aged / Female / Humans / Male Idioma: En Revista: J Arthroplasty Asunto de la revista: ORTOPEDIA Año: 2005 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Artroplastia de Reemplazo de Rodilla / Cirugía Asistida por Computador Tipo de estudio: Observational_studies Límite: Aged / Female / Humans / Male Idioma: En Revista: J Arthroplasty Asunto de la revista: ORTOPEDIA Año: 2005 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos