Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
COMPARATIVE ANALYSIS OF THE BIOMECHANICAL BEHAVIOR OF TWO TYPES OF SOLUTIONS USED FOR THE TREATMENT OF BUSH-HOFFA FRACTURES
Submission Author:
João Marcos Guimarães Rabelo , MG , Brazil
Co-Authors:
João Marcos Guimarães Rabelo, Robinson Esteves Pires, Estevam Barbosa de Las Casas, Armando Pereira, Raphael Lúcio Reis dos Santos, Carlos Alberto Cimini Junior
Presenter: João Marcos Guimarães Rabelo
doi://10.26678/ABCM.COBEM2023.COB2023-0667
Abstract
Surgical treatment of Bush-Hoffa fractures is still controversial, since a treatment protocol has not been defined. The objective of this study is to evaluate, through finite element analysis, the biomechanical behavior of two surgical solutions that use screws with a posterior-to-anterior and anterior-to-posterior approach, commonly used in the literature for the treatment of Bush-Hoffa type I fractures. Under the conditions of vertical shear loading, the displacements along the femur axis, the von Mises stresses and the absolute maximum and minimum stresses in the bone were evaluated. The values found for the displacements were 1.536 mm and 1.225 mm and the von Mises stresses of 555.537 MPa and 700.357 MPa for the posterior-to-anterior and anterior-to-posterior approaches, respectively. The solution with the use of two 4.5 mm cannulated screws from anterior to posterior presented the satisfactory results evaluated for mechanical behavior.
Keywords
coronal fractures, femur fractures, Finite Elements, Biomechanical Behavior, Bush-Hoffa fractures
