Design and Optimization Lattice Endoprosthesis for Long Bones: Manufacturing and Clinical Experiment

Materials
Pavel BolshakovOskar Sachenkov

Abstract

The article is devoted to the construction of lattice endoprosthesis for a long bone. Clinically, the main idea is to design a construction with the ability to improve bone growth. The article presents the algorithm for such a design. The construction should be produced by additive manufacturing. Such an approach allows using not only metallic materials but also ceramics and polymers. The algorithm is based on the influence function as a method to describe the elementary cell geometry. The elementary cell can be described by a number of parameters. The influence function maps the parameters to local stress in construction. Changing the parameters influences the stress distribution in the endoprosthesis. In the paper, a bipyramid was used as an elementary cell. Numerical studies were performed using the finite element method. As a result, manufacturing construction is described. Some problems for different orientations of growth are given. The clinical test was done and histological results were presented.

References

Nov 3, 2009·The Journal of Arthroplasty·Daigo SakagoshiKatsuro Tomita
Feb 26, 2014·Journal of the Mechanical Behavior of Biomedical Materials·S M AhmadiA A Zadpoor
Jun 23, 2015·Advanced Healthcare Materials·Anh-Vu DoAliasger K Salem
Mar 28, 2018·Computers in Biology and Medicine·Petr MarciánLibor Borák
Apr 5, 2019·Journal of the Mechanical Behavior of Biomedical Materials·Klaudio Bari, Arun Arjunan

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