[Incidence and potential factors in the genesis of birth injury-induced clavicular fractures].

The incidence of clavicula fractures at the First Department of Obstetrics and Gynecology of the University of Vienna was 217/8383 (2,6%) deliveries in 1980 through 1984, whereas 248/5531 (4,44%) deliveries were noted at LKH Mödling. Higher birth weight and larger children result in a greater incidence of clavicula fractures. The greater percentage of children weighing more than 4000 gm and being larger than 52 cm at the LKH Mödling compared to that at the First Department of Obstetrics and Gynecology of the University of Vienna, i.e. 18,55% and 40,32% vs. 15,67% and 28,57%, resp. explains the higher incidence of clavicula fractures there.