【摘要】：目的　探討頜面部破片復(fù)合沖擊傷 (破 -沖傷 )后軟組織損傷特點(diǎn)及其臨床意義。方法　 15只犬按傷后 0 ,6,2 4 ,72h、7d隨機(jī)分為 5組 ,每組 3只。采用雷管、滑膛槍以及同步測(cè)速及測(cè)壓系統(tǒng) ,建立頜面部爆炸傷模型 ,造成犬頜面部破 -沖傷。記錄致傷參數(shù) ,觀察動(dòng)物傷情及局部距創(chuàng)緣不同距離的軟組織傷后各時(shí)相點(diǎn)的病理變化�！〗Y(jié)果　 15只犬均呈左咬肌區(qū)軟組織切線傷 ,創(chuàng)面污染嚴(yán)重 ,距傷區(qū)創(chuàng)緣 0～ 0 .8cm處肌組織完全壞死 ,0 .9～ 1.6cm處肌組織呈灶性壞死 ,正常組織與壞死組織相嵌存在 ;皮膚壞死范圍距創(chuàng)緣 0 .2cm。　結(jié)論　頜面部破 -沖傷后軟組織損傷范圍廣 ,污染嚴(yán)重 ,肌組織清創(chuàng)范圍應(yīng)距創(chuàng)緣 0 .9～ 1.6cm ,皮膚切除不小于 0 .2cm。
[Abstract]:Objective to investigate the characteristics and clinical significance of soft tissue injury after maxillofacial fragment combined blast injury. Methods Fifteen dogs were randomly divided into 5 groups, 3 in each group. The explosive injury model of maxillofacial region was established by using detonator, shotgun and simultaneous velocity and pressure measurement system, resulting in canine maxillofacial injury. The injury parameters were recorded and the pathological changes at different time points after the injury were observed. Results all the 15 dogs showed soft tissue tangential injury in the left masseter area and the wound was polluted seriously. There was focal necrosis in muscle tissue at 0 ~ 0. 8 cm from wound edge to 0. 9 ~ 1.6cm, and normal tissue was embedded with necrotic tissue. Conclusion the range of soft tissue injury in maxillofacial region is wide and polluted seriously. The range of muscle debridement should be 0. 9 ~ 0. 9 1.6cm and skin excision should not be less than 0. 2 cm.
【作者單位】： 第四軍醫(yī)大學(xué)口腔醫(yī)學(xué)院頜面外科 第四軍醫(yī)大學(xué)口腔醫(yī)學(xué)院頜面外科 第三軍醫(yī)大學(xué)附屬大坪醫(yī)院野戰(zhàn)外科研究所第六研究室 第四軍醫(yī)大學(xué)口腔醫(yī)學(xué)院頜面外科 第三軍醫(yī)大學(xué)附屬大坪醫(yī)院野戰(zhàn)外科研究所第六研究室 第三軍醫(yī)大學(xué)附屬大坪醫(yī)院野戰(zhàn)外科研究所第六研究室 ，

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