[Reconstruction of a free bone transplant in long bone defect after distraction].

The authors have studied the roentgenological changes of the bone substance in a defect making use of densitometric and planimetric methods of investigation in a study on 63 adult dogs (2 series of experiments) who had their defect of the upper part of the tibia replaced by a graft that was being removed in doses and a distraction regenerate that was being formed at the same time. It was established that the formation of the distraction regenerate lead to demineralization of the osseous graft which was favourable for an organotypic reconstruction of the freely replaced bone.