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Excerpt
I am writing in reference to the paper by O. Farouk, C. Krettek, T. Miclau, P. Schandelmaier, P. Guy, and H. Tscherne, "Minimally invasive plate osteosynthesis: Does percutaneous plating disrupt femoral blood supply less than the traditional technique?," published in the August 1999 issue (J Orthop Trauma 1999;13:401-406). The authors have taken an interesting approach to answer a difficult question. However, it would be nice to know the pressure at which the silicon dye was injected into the vascular system. If injection pressures were, for example, 350 millimeters of mercury, that may have been sufficient to open vascular channels under biological plate specimens. This would not prove the existence of perfusion underneath biological plates because physiologic perfusion pressures may be inadequate to maintain patency of perforating vessels under the plate.
