Histological changes in the structures of anterior fascial space of the leg in case of its lengthening at the upper-third level

Histological changes of the anterior tibial muscle, the artery of the same name and the branches of the deep peroneal nerve have been studied experimentally in 7 dogs during leg lengthening at the upper-third level by 1 mm for 4 times, computer morphometry of the muscle has been made. The syndrome of the anterior tibial artery compression was revealed in 3 experiments of 7, the reparative reaction to intima injury - subintimal and myointimal hyperplasia, lumen stenosing was observed in most perimysial arteries in all the experiments. Hypovascularization and the disorder of myon neurotrophism was marked for up to 30 days after the fixator removal. Lengthening at the level of leg upper third seems to be less advantageous in comparison with lengthening at the level of shaft middle third.