Early reconstructive surgery for oromaxillofacial soft tissue defect due to gun-shot wound in dogs / 第三军医大学学报

ABSTRACT

In order to assess whether there is any possibility of early reconstructive surgery to repair oromaxillofacial soft tissue defect resulting from gun-shot wound.8 dogs were wounded in the left cheek with model Mm bullet of 5.56 mm in diameter fired from a M]6 rifle made in USA with a firing distance of 6 meters.As a result,there was a hole in the left cheek of the dogs.Debridement was performed,immediately and it was repeated 72 hours after wounding.Meanwhile,saphenous artery skin flap was excised and used to repair the skin defect of the left cheek with microvascular anastomosis.The defect of the mucous membrane was repaired by drawing the adjacent mucous membrane together or by a sliding mucous membrand flap.The dogs were observed for 2 to 6 months postoperatively.The survival rate of the free skin flap was 75%.Our findings suggest that it is practicable to perform early reconstructive surgery for the repair of the oromaxillofacial soft tissue defect resulting from gunshot wound with vascular anastomotic free skin flap.