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CREEM2025
CREEM 2025 - XXXI Congresso Nacional de Estudantes de Engenharia Mecânica Congresso Nacional de Estudantes de Engenharia Mecânica
ESTUDO DA VIABILIDADE DA DETERMINAÇÃO DE OSTEOPOROSE EM OSSOS LONGOS POR MEIO DO MÉTODO DE RESPOSTA EM FREQUÊNCIA
Submission Author:
Gustavo Bortonio de Carvalho , Brazil
Co-Authors:
Gustavo Bortonio de Carvalho, Bruno Agostinho Hernandez, Paulo José Paupitz Gonçalves, LUCIANO MENEGALDO
Presenter: Gustavo Bortonio de Carvalho
doi://10.26678/ABCM.CREEM2025.CRE2025-0133
Abstract
Osteoporosis is a common disease in the elderly characterized by a reduction in bone mineral density, making bones fragile and susceptible to fractures. The traditional diagnosis is made by bone densitometry, a technique that uses low-intensity X-rays, but which has disadvantages such as high cost, limited supply in the public system and exposure to radiation. An alternative to try and reduce the cost and make diagnosis easier could be a method based on mechanical impedance. This technique consists of inducing excitations in the bone and analyzing its vibratory frequency response, which is directly related to the mass of the tissue. Therefore, the general objective of the project is to analyze the feasibility of the mechanical impedance technique for diagnosing osteoporosis through experimental practices and finite element modeling. This paper presents the procedures and initial results of the project. Preliminary experiments were carried out on synthetic bones without and with severe osteoporosis using sensors and impact hammers. The response was processed using the H1 estimator. For numerical modeling, tomography images and Simpleware software (v2022, Synopsys) were used to generate the geometries and Ansys (v22R2, Ansys INC) to simulate the vibration response. The work aims to develop a more accessible and safer methodology for diagnosing osteoporosis, based on analyzing the frequency responses of bones
Keywords
Bone Frequency Response, Osteoporosis, Finite Element Method, Bone Mechanical Impedance, Biomechanical Simulations
