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Axial compressive strength of human vertebrae trabecular bones classified as normal, osteopenic and osteoporotic by quantitative ultrasonometry of calcaneus
Cesar, Reinaldo; Leivas, Tomaz Puga; Pereira, Cesar Augusto Martins; Boffa, Ricardo Simionato; Guarniero, Roberto; Reiff, Rodrigo Bezerra de Menezes; Mandeli Netto, Antônio; Fortulan, Carlos Alberto; Rollo, João Manuel Domingos de Almeida.
Afiliação
  • Cesar, Reinaldo; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Leivas, Tomaz Puga; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Pereira, Cesar Augusto Martins; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Boffa, Ricardo Simionato; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Guarniero, Roberto; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Reiff, Rodrigo Bezerra de Menezes; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Mandeli Netto, Antônio; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Fortulan, Carlos Alberto; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
  • Rollo, João Manuel Domingos de Almeida; University of São Paulo. São Carlos School of Engineering. São Carlos. BR
Res. Biomed. Eng. (Online) ; 33(2): 91-96, Apr.-June 2017. tab, graf
Article em En | LILACS | ID: biblio-896177
Biblioteca responsável: BR1178.1
ABSTRACT
Abstract Introduction Biomechanical assessment of trabecular bone microarchitecture contributes to the evaluation of fractures risk associated with osteoporosis and plays a crucial role in planning preventive strategies. One of the most widely clinical technics used for osteoporosis diagnosis by health professionals is bone dual-energy X-ray absorptiometry (DEXA). However, doubts about its accuracy motivate the introduction of congruent technical analysis such as calcaneal ultrasonometry (Quantitative Ultrasonometry - QUS). Methods Correlations between Bone Quality Index (BQI), determined by calcaneal ultrasonometry of thirty (30) individuals classified as normal, osteopenic and osteoporotic, and elastic modulus (E) and ultimate compressive strength (UCS) from axial compression tests of ninety (90) proof bodies from human vertebrae trabecular bone, which were extracted from cadavers in the twelfth thoracic region (T12), first and fourth lumbar (L1 and L4). Results Analysis of variance (ANOVA) showed significant differences for E (p = 0.001), for UCS (p = 0.0001) and BQI. Spearman's rank correlation coefficient (rho) between BQI and E (r = 0.499) and BQI and UCS (r = 0.508) were moderate. Discussion Calcaneal ultrasonometry technique allowed a moderate estimate of bone mechanical strength and fracture risk associated with osteoporosis in human vertebrae.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Res. Biomed. Eng. (Online) Assunto da revista: Engenharia Biom‚dica Ano de publicação: 2017 Tipo de documento: Article / Project document País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Res. Biomed. Eng. (Online) Assunto da revista: Engenharia Biom‚dica Ano de publicação: 2017 Tipo de documento: Article / Project document País de afiliação: Brasil País de publicação: Brasil