A mechanical comparison between conventional and modified angular plates for proximal humeral fractures

A mechanical comparison between conventional and modified angular plates for proximal humeral fractures

Autor Carrera, Eduardo F. Autor UNIFESP Google Scholar
Nicolao, Fabio A. Autor UNIFESP Google Scholar
Archetti Netto, Nicola Autor UNIFESP Google Scholar
Carvalho, Renato L. Autor UNIFESP Google Scholar
Reis, Fernando B. dos Autor UNIFESP Google Scholar
Giordani, Enrico Jose Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade Estadual de Campinas (UNICAMP)
Resumo The objective of this study is to present a modified angular blade plate for fixing 2-part and even 3-part fractures of the proximal humerus, as well as the results of the comparative mechanical test between the conventional angular blade plate and this new modified plate. the plates were tested in flexion and rotational trials in a wooden model that simulated a 2-part humeral fracture of the proximal extremity. the results (mean +/- SD) of bending strength and stiffness obtained after testing showed findings of 601 +/- 349 N and 0.5 +/- 0.2 N/mm, respectively, for the conventional plate and 4005 +/- 164 N and 3.9 +/- 0.7 N/mm, respectively, for the modified plate. the torsional stiffness test showed findings of 1.26 +/- 0.09 KN.mm degrees for the conventional plate and 1.74 +/- 0.21 KN.mm degrees for the modified plate. the test of torsional moment showed findings of 57.0 +/- 7.6 KN.mm for the conventional plate and 115.2 +/- 9.3 KN.mm for the modified plate. the test of angular displacement of the torsional moment showed findings of 50.8 degrees +/- 7.2 degrees for the conventional plate and 70.2 degrees +/- 2.6 degrees for the modified plate. the results of the mechanical trials of flexion and rotation were superior for the modified angular blade plate compared with the conventional angular blade plate.
Idioma Inglês
Data 2008-07-01
Publicado em Journal of Shoulder and Elbow Surgery. New York: Mosby-Elsevier, v. 17, n. 4, p. 631-636, 2008.
ISSN 1058-2746 (Sherpa/Romeo, fator de impacto)
Editor Elsevier B.V.
Extensão 631-636
Fonte http://dx.doi.org/10.1016/j.jse.2008.02.003
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000257768100017
URI http://repositorio.unifesp.br/handle/11600/30762

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