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- Talk
- 25/09/2023
- UK
ATTUNE Total Knee Replacement: Is There Evidence of Increased Tibial Loosening? A Retrospective Analysis of 10,202 Knees
Description
The presentation by Jonathan France delves into the study of the ATTUNE knee replacement system, focusing on its potential risk for tibial loosening compared to its predecessor, the PFC design. Jonathan discusses that while total knee replacements are generally successful for patients suffering from end-stage osteoarthritis, a significant percentage of patients experience dissatisfaction post-surgery, with aseptic loosening being a leading cause for revision surgeries within the first two years. The ATTUNE, launched in 2011, features design advances aimed at increasing contact surface area to reduce wear, but it also raises concerns about implant loosening due to higher constraints across the knee joint.
The aim of the research was to assess the overall revision rates of the ATTUNE compared to the PFC, involving a retrospective analysis over a 19-year period at a high-volume arthroplasty center. It highlights a total of 10,202 total knee procedures with a focus on various demographic data, and the analysis included statistical methods to compare the incidence of aseptic loosening and other revision causes.
Results indicated that while the ATTUNE had the fewest revisions per 1,000 implant years, there was no significant differentiation in revision rates for aseptic loosening compared to the PFC. Additionally, comparisons between the original ATTUNE and its updated version, ATTUNE S+, also demonstrated no significant variations in revision risks. The analysis included hazard ratios suggesting that demographics such as age and ASA scores were associated with revision rates. Ultimately, Jonathan concludes that despite some concerns surrounding the ATTUNE design, findings reveal no substantial evidence supporting increased risks of early loosening in patients.