[Changes in the skin and sciatic nerve after soft-tissue damage to the extremity by a high-speed small-caliber...

The character of contusive changes has been determined in the skin and sciatic nerve after lesion of soft tissues of the extremity with a high-speed small-bore bullet. A high-speed filming, tensiometry have been used. They allow to observe and measure processes of formation of the temporal pulsating cavity appearing at the moment of injury in the block of 20% gelatin and its influence on the imitator of the vascular-neural bundle. In the investigation performed on test-animals by means of neuromorphological, histological and histochemical techniques certain contusive changes are stated in the skin and sciatic nerve at various distances from the edge of the entrance and axis of the wound canal. The investigation of the material in 1, 3, 5 days after the lesion makes it possible to differentiate initial changes connected mainly with the effect of contusion from the secondary ones.