[Changes in neural conductors and their end organs in the muscles and skin after major procedures of one-stage lengthening of the extremity by the G.A. Ilizarov method].

The state of the tibial nerve, intramuscular nervous fasciculi and terminals in muscles and skin has been studied in the canine extremities at large one-stage elongations after G. A. Ilizarov. By means of neuromorphological methods it has been proved that during the distraction in the tibial nerve microscopical areas of overstrain of the nervous fibers are formed. This results in appearance of degenerative alterations both in the nerve itself and in the tissues, which it innervates. Together with the destructive processes, during all stages of distraction in the extremity, regeneration of nervous apparatuses took place. However, reparative processes were poorly manifested during those stages. Only after distraction is stopped (in 6 months--period of the extremity fixation) the regenerative processes predominate. It is possible to suppose that the manifestation degree of degenerative and reparative changes depends immediately on duration of distraction.