Ultrasonographic signs of low osteogenous activity during leg lengthening

In this work the analysis of individual clinical cases was made in patients whose distraction regenerate bones were characterized by low reparative activity. It was demonstrated, that echo-signs of the reparative activity of this type are the following: decrease of the echo-density of linear structures and that of the whole regenerate bone beginning from 30 arbitrary units to 1 a.u.; the presence of local non-echogenic foci of different size; late appearances of osteogenic reaction at the proximal and distal maternal bone; long preservation of the regenerate bone echo-positiveness.