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IRIS è il sistema di gestione integrata dei dati della ricerca (persone, progetti, pubblicazioni, attività) adottato dall'Università degli Studi di Milano.

AIR nasce in UNIMI nel 2006 con lo scopo di raccogliere, documentare e conservare le informazioni sulla produzione scientifica dell'Università degli Studi di Milano e costituisce di fatto l'Anagrafe della ricerca dell'Ateneo.

Objective To describe early prostheses implantation in a cohort of patients with juvenile idiopathic arthritis (JIA) followed in a tertiary referral hospital and to analyze possible factors influencing implant survival. Methods This is a retrospective cohort study. Charts of all JIA patients who underwent total joint replacement at G. Pini Hospital, Milan, Italy from January 1992 to June 2019 were retrieved, and relevant data were analyzed. Results Eighty‐five patients met the inclusion criteria for this study, with a median follow‐up of 17.2 years. The median age at first prosthesis was 22.7 years. The total number of replaced joints was 198 over a period of 27 years. The hip was the most replaced joint accounting for almost two thirds of the total number of implants; the other third refers mostly to knee implants. Polyarticular (polyJIA) and systemic (sJIA) were the most represented JIA categories in the study cohort. A significant upward trend of the age at arthroplasty and of disease duration before arthroplasty over decades was found. The rates of implant survival at 5, 10 and 15 years were comparable (from 84% to 89%); 50% of implants lasted 20 years or more. Conclusions We reported retrospective data on early joint replacement in a cohort of patients with JIA. We observed a progressive and significant upward trend of both age at arthroplasty and disease duration before the first arthroplasty over time. JIA category, year of implants and the presence of complications significantly affected implant survivorship.

Early joint replacement in juvenile idiopathic arthritis (JIA): trend over time and factors influencing implant survival / A. Marino, I. Pontikaki, M. Truzzi, A. Menon, C. Artusi, M. Di Marco, P.S. Randelli, R. Cimaz, R. Viganò. - In: ARTHRITIS CARE & RESEARCH. - ISSN 2151-464X. - (2020). [Epub ahead of print]

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