Epidemiology of diaphyseal and distal femoral fractures in Rochester, Minnesota, 1965-1984.
Over the 20-year period from 1965 to 1984, 370 residents of Rochester, Minnesota experienced 402 femoral fractures exclusive of the hip, giving an overall incidence rate of 37.1 per 100,000 person-years (95% confidence interval, 33.4-40.8). Of these, 54 were subtrochanteric and 210 were diaphyseal, while 123 involved the distal femur and 15 were at unspecified femoral sites. Fifty-eight percent of these fractures were caused by severe trauma. The incidence of femoral fractures due to severe trauma was greatest in young patients, especially for diaphyseal fractures, and showed a male excess. On
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