Open long bone fractures occur with a frequency of 11.5 per 100 000 pe
rsons per year. They are more common in males and they have a bimodal
age distribution. Open fractures of the tibial diaphysis are the commo
nest, but open femoral diaphyseal, distal femoral and proximal tibial
fractures tend to occur in the most seriously injured patients. Lower
limb open fractures are move severe than open fractures of the upper l
imbs. Not only is the soft tissue damage less in open upper limb fract
ures, but there are fewer associated musculoskeletal injuries. (C) 199
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