Annual Trends in Knee and Hip Arthroplasty in Rheumatoid Arthritis 1998–2007

• Published in: Reumatología clinica (Barcelona) 2011-11, Vol.7 (6), p.380-384
• Main Authors: Manrique Arija, Sara, López Lasanta, María, Jiménez Núñez, Francisco G., Ureña, Inmaculada, Espiño-Lorenzo, Pilar, Romero Barco, Carmen M., López Belmonte, María Ángeles, Coret, Virginia, Irigoyen, María Victoria, Fernández Nebro, Antonio
• Format: Article
• Language: English
• Subjects: Arthroplasty; Artritis reumatoide; Artroplastia; Cadera; Evolución; Hip; Knee; Progression; Prosthesis; Prótesis; Rheumatoid arthritis; Rodilla; Tendencia; Trend
• ISSN: 2173-5743; 2173-5743
• DOI: 10.1016/j.reumae.2011.05.009

To determine the annual number and trend of prostheses implanted in patients with rheumatoid arthritis (RA) at our hospital during the past decade. Retrospective observational study. Patients were collected through an extensive search of the database of the Clinical Documentation Service between 1998 and 2007. The data were extracted from medical records using a predesigned questionnaire. Statistical analysis of longitudinal prostheses was made using Cochrane's Q test and the Kaplan–Meier method. Sixty-one RA patients were operated on with 78 prostheses as a direct result of their disease at our hospital between 1998 and 2007. Most were women (80%) with positive rheumatoid factor (84%). The mean age was 58 years, and the average time since onset of RA was 13 years. All but one had previously received antirheumatic drugs (88% methotrexate), but only 11% had biological therapy. No changes were observed in the number of arthroplasties as a whole over a decade, although there was a trend toward reduction in the number of patients that required a knee replacement for the first time (Cochrane Q, P=.05). We observed no significant changes in trends in the number of new joint replacement procedures as a whole in the past decade at our hospital, although the number of patients who required knee replacement for the first time as a direct result of their underlying disease seems to have declined in the last decade. Conocer el número anual y la tendencia de las prótesis implantadas en nuestro hospital a los pacientes con artritis reumatoide (AR) durante la última década. Estudio observacional retrospectivo. Los pacientes fueron localizados mediante búsqueda exhaustiva en la base de datos del servicio de documentación clínica entre 1998 y 2007. Los datos se extrajeron de las historias clínicas siguiendo un cuestionario prediseñado. El análisis estadístico longitudinal de las prótesis colocadas se efectuó mediante la Q de Cochrane y las curvas de Kaplan–Meier. Sesenta y un pacientes con AR fueron intervenidos con 78 prótesis como consecuencia directa de su enfermedad en nuestro hospital entre 1998 y 2007. La mayoría eran mujeres (80%) con factor reumatoide positivo (84%). La media de edad fue de 58 años y el tiempo de evolución medio de la AR fue de 13 años. Todos excepto uno habían recibido previamente fármacos antirreumáticos (88% metotrexato), pero sólo el 11% había accedido a una terapia biológica. No se observaron cambios en el número de artroplastias a lo largo de