Chester

Researchers are evaluating the performance, clinical benefits, and safety of the Persona Revision Knee System in patients who have previously undergone primary or revision total knee arthroplasty (TKA). This study uses a multicenter, single-arm, retrospective cohort design with prospective follow-up to gather data. The study includes patients with knee conditions such as rheumatoid arthritis, osteoarthritis, traumatic arthritis, and other joint issues treated with this knee system. The study focuses on the Persona Revision Knee System implants and related devices used according to their instructions for use. Patients who had the system implanted will be identified retrospectively and invited for prospective follow-up visits at 1, 2, 3, 4, 5, 7, and 10 years after surgery. The device became commercially available in late 2019, so past treatments follow standard care. Up to 20 sites will participate with a maximum of 380 patients enrolled. Participants will attend scheduled follow-up visits involving clinical evaluations to measure knee function using the 1989 Knee Society Clinical Rating System objective knee score over 2 years. Researchers will monitor performance improvements, safety, and clinical benefits of the knee system. Data collection will help assess patient outcomes and device effectiveness with long-term monitoring planned up to 10 years.