SPATIAL ORGANIZATION AND PECULIARITIES OF MINERALIZATION OF THE REGENERATES, FORMED UNDER STABLE FIXATION OF BONE FRAGMENTS WITH THE ILIZAROV APPARATUS

Abstract

Canine tibial regenerates, formed after flexion osteoclasia during stable fixation of fragments with the Ilizarov apparatus, were studied, using methods of scanning electron microscopy and roentgen electron-probe microanalysis. It was established, that newly formed bone trabeculae in the regenerates were closed into themselves and formed a network of round bone lacunae. Primary endosteal osteo-osteoid union was formed and bone callus began forming in the interfragmental space of the regenerates unusually early - quite on 5-th day after surgery. This space was almost completely filled with newly formed bone tissue on 12-th day. By mineralization degree the regenerates approximated the indices of intact diaphysis on 19-th day, though differences were still statistically significant.