DYNA JOURNAL ENGINEERING

Key words:

ankle joint prosthesis, finite element analysis, computer aided design, orthopedics, prótesis articular de tobillo, análisis de elementos finitos, diseño asistido por computadora, ortopedia

Article type:

ARTICULO DE INVESTIGACION / RESEARCH ARTICLE

Section:

RESEARCH ARTICLES

A new prosthesis design for total ankle arthroplasty, with an internal damping structure for the sacrifice component is proposed and analyzed considering experimental data for the material model.
Engineering parameters for prosthesis designs are proposed and discussed and physiological load conditions for ankle joint are applied for numerical simulation.
Performance of total displacement, strain, safety factors and equivalent stress of structured prosthesis are compared versus a common solid model and literature findings for market-available prosthesis.
Results showed that the proposed design can be deformed up to 52.85% compared to the solid model and operated safely on simulated cases. Prosthesis deformation generates a damped load transmission rather than a rigid one, closer to the natural ankle joint behavior.

Keywords: ankle joint prosthesis; finite element analysis; computer aided design; orthopedics