Stimulation of the local femoral inflammatory response to fracture and intramedullary reaming: a preliminary study of the source of the second hit phenomenon.

@article{Morley2008StimulationOT,
  title={Stimulation of the local femoral inflammatory response to fracture and intramedullary reaming: a preliminary study of the source of the second hit phenomenon.},
  author={J R Morley and R. Malcolm Smith and Hans-Christoph Pape and David A. Macdonald and L K Trejdosiewitz and P. V. Giannoudis},
  journal={The Journal of bone and joint surgery. British volume},
  year={2008},
  volume={90 3},
  pages={
          393-9
        }
}
We have undertaken a prospective study in patients with a fracture of the femoral shaft requiring intramedullary nailing to test the hypothesis that the femoral canal could be a potential source of the second hit phenomenon. We determined the local femoral intramedullary and peripheral release of interleukin-6 (IL-6) after fracture and subsequent intramedullary reaming. In all patients, the fracture caused a significant increase in the local femoral concentrations of IL-6 compared to a femoral… 
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References

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TLDR
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TLDR
Intramedullary nailing of femoral shaft fractures without reaming results in a significantly higher rate of nonunion compared with intramedully nailing with reaming.
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TLDR
Evidence of increased pulmonary permeability after reamed femoral nailing was associated with increased consumption of coagulation factors, providing support for the theory that after severe trauma, unreamed femal nailing reduces but does not abolish pulmonary sequelae when compared with reamed Femur nailing.
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TLDR
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TLDR
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TLDR
In patients with blunt multiple injuries undergoing primary temporary fixation of major fractures, the timing of secondary definitive surgery should be carefully selected, because it may act as a second hit phenomenon and cause a deterioration of the clinical status.
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TLDR
High-energy, comminuted fracture of the long bones and severe soft-tissue injuries in this model resulted in a significant tropotropic (depressor) cardiovascular response, transcardiac embolism of medullary contents and activation of the coagulation system.
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TLDR
A case of an unexpected death due to ARDS associated with an exaggerated immuno-inflammatory response syndrome following early bilateral femoral nailing following a motor cycle accident is reported.
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TLDR
It is concluded that secondary operations may act as a second insult and may precipitate late multiple organ dysfunction syndrome if they are performed in patients with multiple trauma while they still have an increased level of posttraumatic inflammation.
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