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颌面部爆炸伤后外形修复实验研究
Objective To study the characteristics and the way of reconstruction in maxillofacial explosive wound. Methods 30 dogs were randomly divided into 6 groups and the maxillofacial region were wounded by smoothbore barrels combined with detonators. Histological changes of soft tissue at different distance from wound track were observed after injury. At 72h post injury, 5 dogs in one group were re debrided and reconstructed. Results At 72h after wound, the soft tissue injury was the most serious. Muscles at 0～ 0.8 cm distant to the wound track were completely necrotized. The vibration area spread beyond 1.6 cm. The wounds were well healed. Conclusions The explosive injury of maxillofacial region was characterized by wide range of injury and heavily contamination. The reconstruction of soft tissue defect by vascularized gracilis flaps was effective.
