Análisis numérico de una estructura de hueso trabecular bioinspirado

Abstract

The trabecular bone is a complex, hierarchical structure that provides essential mechanical support and load-bearing capacity to the human skeletal system. The unique architecture of trabecular bone, characterized by a network of interconnected structures in the form of rods and plates, allows for the efficient distribution of stresses and deformations. This work shows the design and analysis process of a digitally scanned trabecular bone geometry replica of a Mediterranean sponge (Haliclona) because it has gained attention in the biomedical and tissue engineering field, the Geomagic design X® and Solid- Works® computer program. The sample was digitized using a cloud of lines, and points were processed and converted into a 2D digital model, which served as the basis for trabecular bone replication. The designed structures were analyzed using finite element analysis software to evaluate the stress and displacement patterns in the weight-bearing condition of an 80 kg patient, which is an average measurement in 43-year-old individuals [1]. Aiming to mimic the mechanical behavior of natural trabecular bone. Six cellular arrays were made with 36 scanned geometries (circle, ellipse, and amorphous), in a square of 11 mm per side. The results of the study indicate that the designed structures presented stress and displacement patterns similar to those given by other authors. The anisotropic nature of the trabecular bone architecture was successfully replicated.