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- W2063725907 abstract "While locking plate fixation is becoming increasingly popular for complex and osteoporotic fractures, for many indications compression plating remains the standard choice. This study compares the mechanical behaviour of the more recent locking compression plate (LCP) device, with the traditional dynamic compression plates (DCPs) in bone of varying quality using finite element modelling. The bone properties considered include orthotropy, inhomogeneity, cortical thinning and periosteal apposition associated with osteoporosis. The effect of preloads induced by compression plating was included in the models. Two different fracture scenarios were modelled: one with complete reduction and one with a fracture gap. The results show that the preload arising in DCPs results in large principal strains in the bone all around the perimeter of the screw hole, whereas for LCPs large principal strains occur primarily on the side of the screw proximal to the load. The strains within the bone produced by the two screw types are similar in healthy bone with a reduced fracture gap; however, the DCP produces much larger strains in osteoporotic bone. In the presence of a fracture gap, the DCP results in a considerably larger region with high tensile strains and a slightly smaller region with high compressive strains. These findings provide a biomechanical basis for the reported improved performance of locking plates in poorer bone quality." @default.
- W2063725907 created "2016-06-24" @default.
- W2063725907 creator A5006147877 @default.
- W2063725907 creator A5029787077 @default.
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- W2063725907 date "2014-12-04" @default.
- W2063725907 modified "2023-10-14" @default.
- W2063725907 title "Reasons why dynamic compression plates are inferior to locking plates in osteoporotic bone: a finite element explanation" @default.
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- W2063725907 doi "https://doi.org/10.1080/10255842.2014.974580" @default.
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