摘要
The left cheek of 8 adult male mongrel dogs was shot with M1935.56mm bul-let fired through an US-made M16 rifle to result in a perforating soft tissue defect.Pri-mary debridement was performed immediately and the secondary debridement 72h alter in-jury.After the secondary thorough debridement,the cutaneous side of the defect was re-paired with a saphenous artery-vein free skin(muscular)flap using microvascularanastomosis,and the oral side of the defect was repaired by drawing the surroundingmucosa together and fixing with sutures or with a local sliding mucous membrane flap.All the animals were kept under observation for 2～6 months.It was believed that the pri-mary debridement and secondary thorough debridement were both essential. The survivalrate of the free tissue flap was 75%(6/8).These facts suggest that early repair ofthe oromaxillofacial perforating soft tissue defect due to gunshot is practicable.
The left cheek of 8 adult male mongrel dogs was shot with M1935.56mm bul- let fired through an US-made M16 rifle to result in a perforating soft tissue defect.Pri- mary debridement was performed immediately and the secondary debridement 72h alter in- jury.After the secondary thorough debridement,the cutaneous side of the defect was re- paired with a saphenous artery-vein free skin(muscular)flap using microvascular anastomosis,and the oral side of the defect was repaired by drawing the surrounding mucosa together and fixing with sutures or with a local sliding mucous membrane flap. All the animals were kept under observation for 2～6 months.It was believed that the pri- mary debridement and secondary thorough debridement were both essential. The survival rate of the free tissue flap was 75%(6/8).These facts suggest that early repair of the oromaxillofacial perforating soft tissue defect due to gunshot is practicable.
