2018
DOI: 10.1590/s1517-707620180004.0556
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Análisis de los elementos principales en el diseño de placas de bloqueo en una fractura de 2-partes del cuello quirúrgico del húmero utilizando MEF y análisis estadístico

Abstract: RESUMEN Un gran número de fracturas de húmero proximal están siendo tratadas con osteosíntesis. Sin embargo, la pérdida de reducción sigue siendo un problema grave, lo que lleva al recorte de tornillo en la articulación humeral y la reoperación. De acuerdo con la teoría del strain interfragmentario, se debe considerar el equilibrio entre una fijación flexible, que estimula la formación de callos, y una fijación inestable, que conduce al fallo del implante. Los principales elementos implicados en este caso son … Show more

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Cited by 4 publications
(4 citation statements)
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References 48 publications
(65 reference statements)
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“…However, in the literature we found everything from the simplest compression test, with just an axial load applied, to the most complex, considering all the muscles and tendons that affect the proximal humerus at different magnitudes for each simulated movement. The research run by Röderer et al [51] is generally used to validate compression studies, as well as the study by Unger et al [52], who physically tested a fractured proximal humerus with ORIF under a bending and axial rotation test setup. The review carried out by Mendoza-Muñoz et al [53] shows another perspective of FEA studies of the proximal humerus with locking plates.…”
Section: -Part Compression Wwwvideleafcommentioning
confidence: 99%
See 1 more Smart Citation
“…However, in the literature we found everything from the simplest compression test, with just an axial load applied, to the most complex, considering all the muscles and tendons that affect the proximal humerus at different magnitudes for each simulated movement. The research run by Röderer et al [51] is generally used to validate compression studies, as well as the study by Unger et al [52], who physically tested a fractured proximal humerus with ORIF under a bending and axial rotation test setup. The review carried out by Mendoza-Muñoz et al [53] shows another perspective of FEA studies of the proximal humerus with locking plates.…”
Section: -Part Compression Wwwvideleafcommentioning
confidence: 99%
“…Table 3 shows the elastic modulus given for cancellous bone by some researchers [5,20,33], ranging from 0.1 to 1.061 GPa. Table 4 exhibits the vBMD values for the cancellous bone in the humeral head, used or measured in some studies [4,30,31,42,51,63], with a range of 17.8-178.2 mgHA/cm 3 .…”
Section: Cancellous Bonementioning
confidence: 99%
“…The 3-part fracture (AO/OTA 11B1.1) mostly involves the surgical neck and greater tuberosity. The 2-part fracture (AO/OTA 11A2.1) patterns involving the surgical neck are not as relevant as they once were, but can still be useful for some researchers, considering the simplicity of the fracture pattern; for example, the studies by Jabran et al [28], Zhang et al [5], Dahan et al [3], and Mendoza-Muñoz et al [49]. The 2-part fracture is considered a simple fracture because only one bone segment is displaced from the rest of the bone, and usually the fracture occurs in the surgical neck; on the other hand, even though 3-part fractures commonly involve the surgical neck as well, there are two displaced segments instead of one.…”
Section: -Part Compressionmentioning
confidence: 99%
“…Among the most relevant studies carried out by researchers with the purpose of perfecting the treatment are: The assessment of the effect of material type with which the blocking plate was manufactured, the differences generated by the different types of screws, the importance of the use of calcar screws, the effect on system stability caused by the type of screw hole in the locking plate, improvement of the fatigue performance of high cycle materials by cryogenic treatment and the prediction of premature system failure by determining the optimal number of screws for treatment [5,7,[12][13][14][15]. This research offers a new biomechanical approach to solve the problem.…”
Section: Introductionmentioning
confidence: 99%