Peculiarities of formation of tibial distraction regenerated bone during leg lengthening in patients with achondroplasia

The results of ultrasonographic study of the tibial distraction regenerated bone in patients with achondroplasia at the age of 6-17 years in 9-12-cm bifocal leg lengthening are given in the work. High regenerative activity was found out in children at the age of 8-10 years. As it was shown the regenerative process was particularly active in boys at the age of 11-13 years, and signs of somewhat delayed regeneration were noted in female patients at the age of 14-17 years. The possibility of more often controlling of the regenerated bone structural condition using ultrasonography technique allows to reveal discrepancy between the reparative process and distraction periods timely and also to amend the tactics of the treatment performed.