Prospective Three-Year Outcomes Comparing Cemented and Cementless Fixation in the Trabecular Metal Total Ankle Arthroplasty

Description

This presentation led by Alastair Younger focuses on a study comparing cemented versus cementless fixation methods in trabecular metal total ankle arthroplasty. Youngers states the study's backing from Zimmer, highlighting both funding and institutional support. The discussion introduces the trabecular metal component's design, describing its compatibility with the ankle's center of rotation and fixation techniques involving rails and optional cement augmentation. The study employs 113 total ankle replacements across multiple centers, detailing participant demographics and surgical outcomes.



The key findings indicate that press fit components without cement demonstrate superior results over a year in patient-reported outcomes such as pain and disability scores, while also achieving a high survivorship rate. Notably, the study recorded zero revisions in the cemented group, contrasting with two revisions in the cementless cohort, particularly due to loosening. Despite the positive results for press fit, modifications in demographics and surgical preferences hint at the necessity for a randomized controlled trial for conclusive evidence. Younger concludes that current data suggests no need for cement in this specific arthroplasty design, aligning with findings from previous research in joint fixation. The presentation wraps up with acknowledgments to co-authors and collaborators.

DOI: 10.1302/3114-220779

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