At what frequency fracture of human bone takes place during accidents. while the bone makes direct contact with the automobile.
Hello Bhaskar Kumar Madeti
Bone cells have strong frequency selectivity with EMF effectiveness peaking in the range of 15–30 Hz.
In our trauma surgery unit we have about 60% broken bones in traffic accidents. However, the frequency and type of fractures depends on an extremely large number of parameters: type of vehicle (car, truck), speed of the vehicle, pedestrians, cyclists, other motorists, motorcyclists. In addition, the frequency in clinics will depend on the location of the clinics (near the highway or in the city) as well as the orientation of the clinic: (Level 1 trauma center or primary care hospital)
Dear Bhaskar,
Some data obtained by one of the author study is quoted here for reference. This is a Population-Based Study Over 20 Years.
Fracture incidence increased with age in both sexes (mans and women’s), but age-adjusted rates were 49% greater among the women. Overall, comparably adjusted fracture incidence rates were reported by increasing percentage by 11% (from 3627 to 4017 per 100,000 person-years; p = 0.008) between 1989–91 and 2009–2011. This were mainly due to a substantial increase in vertebral fractures (+47% for both sexes combined), which was partially offset by a decline in hip fractures (−25%) among the women. 2009–11, 3549 residents ≥ 50 years of age experienced 5244 separate fractures. The age- and sex-adjusted (to the 2010 United States white population) incidence of any fracture was 2704 per 100,000 person-years (95% CI 2614–2793) and that for all fractures was 4017 per 100,000 (95% CI 3908–4127). There was also a 26% reduction in distal forearm fractures among the women; an increase in distal forearm fractures among men age 50 years and over was not statistically significant. The dramatic increase in vertebral fractures, seen in both sexes and especially after age 75 years, was attributable in part to incidentally-diagnosed vertebral fractures.
Refer the article;
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3929546/
Ashish
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