Marino A, Pontikaki I, Truzzi M, et al. - This study was carried out to present 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. Researchers conducted a retrospective cohort study to retrieve charts of all JIA patients who had undergone total joint replacement at G. Pini Hospital, Milan, Italy from January 1992 to June 2019, and relevant data were examined. This study included 85 patients, with a median follow‐up of 17.2 years. They presented retrospective data on early joint replacement in a cohort of patients with JIA. They found a progressive and significant upward trend of both age at arthroplasty and disease duration before the first arthroplasty over time. It was shown that JIA category, year of implants and the presence of complications significantly influenced implant survivorship.