[Nerve regeneration after correction of its defect with a vascularized autologous nerve transplant]

In chronic experiment performed on 6 dogs, by means of some neurohistological techniques peculiarities of regeneration of nerves have been studied, when their defects are substituted for vascularized and common autoneurotransplants. When the vascularized autoneurotransplants are applied, more favourable conditions are made for the nerve regeneration, than at a free plastisity and amount of regenerated fibers distal to the graft reaches 34-88%, more often making 48-52% of the initial number of fibers in the proximal parts of the nerves in 3 months after the operation. When in the same animals in the contralateral side common autoneurotransplants have been applied, during the same time the amount of fibers regenerated into the peripheral parts of the nerves makes 10-26%, more often 17-20% from the initial level, or in 2-2.5 times less than at substitution of the defects for the vascularized grafts. Absence of an active cellular reaction of the surrounding tissues to the sutural material supramid is used.