Total ankle replacement designs have evolved since their introduction in the mid 1970s. While the first-generation total ankle replacement (TAR) designs had unacceptably high failure rates, recent designs have demonstrated improved outcomes . Two philosophies are commonly used in TAR design: mobile-bearing and fixed-bearing. Unlike mobile-bearing designs which have two articulating surfaces, fixed-bearing designs have only one articulating surface. While fixed-bearing designs have lower risk of dislocation than mobile-bearing designs, the single articulation feature can produce higher contact stress on the articulating surface, increasing the potential for polyethylene wear [1, 2].
- Bioengineering Division
Impact of Articulation Geometry on Contact Mechanics in Total Ankle Replacement Design
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Dharia, MA, Bischoff, JE, Gillard, D, Wentorf, F, & Mroczkowski, M. "Impact of Articulation Geometry on Contact Mechanics in Total Ankle Replacement Design." Proceedings of the ASME 2011 Summer Bioengineering Conference. ASME 2011 Summer Bioengineering Conference, Parts A and B. Farmington, Pennsylvania, USA. June 22–25, 2011. pp. 817-818. ASME. https://doi.org/10.1115/SBC2011-53107
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