Summary
Medullary nails have only been used with reluctance in the treatment of open fractures since reaming interferes with the cortical circulation. The technique of interlocking offers the interesting possibility of inserting a relatively stiff nail which does not necessarily require reaming. The effects of reaming prior to nail insertion upon the cortical circulation was investigated in the canine tibia. Intravital staining with procion red was used to trace areas of disturbed circulation. Nail insertion without reaming provided clear advantages for the bone's blood supply, while reaming disturbed perfusion in two-thirds of the cortical area and regionally extended through the entire thickness of the cortex. The disturbance without reaming was limited to the inner layer of the cortex and involved only one-third of the cortical cross-section.
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Klein, M.P.M., Rahn, B.A., Frigg, R. et al. Reaming versus non-reaming in medullary nailing: Interference with cortical circulation of the canine tibia. Arch Orthop Trauma Surg 109, 314–316 (1990). https://doi.org/10.1007/BF00636168
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DOI: https://doi.org/10.1007/BF00636168