Ankle snap offs are the second most frequent injuries by and by mistakes of the lower part of radius {Solgard & Petersen 1985} . They are everyday fractures and to date bibliography referring to their epidemiology is poor. In 1969, ?ilsson from Malmo studied their overall incidence estimate in terms of age and sex. In 1986 Begner & Johnell convey the incidence calculate in a 30 year study ,where it is pointed come out of the closet that fractures and especially those of the lateral malleolus are age dependent for work force over 60 years of age and women over 50 . Another study from Minessota presents conclusions from other. Indications and regards athletics as the commonest cause of injuries { Daly et al 1987} . 10 year later Jensen et al 1998 , from Denmark ,study these fragtures in a survey over 212 patients ,where it is stressed that a fracture is caused by insignificant violence during physical exercise . The aim of this study is through focusing on the epidemiological character of the fracture - to point out the possibility to reduce, the frequency and morbility within the modeling of prevention.
Material-Method
During the years 1999- 2002 ,we studied the cases of 154 patients with ankle fractures ,aged from 15 to 20 years. Considering that the nation equivalent to the above mentioned age spectrum is 59776 people ,the resulting incidence rate is 91 fractures per 100 000 individuals per year.
Eight epidemiological indicators were studied and evaluated as follows :
1.Age : active age groups where included ,while was excluded as a factor that could lead to false conclusions.
2.Sex: correlation of the fracture to the sex and comparison of the woman s position in terms of employment and athletics .
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