下颌骨爆炸性损伤致伤效应的实验研究  

An experimental study on injury characteristics of blast injury in maxillofacial region wounded by spherical explosive

作　　者：何黎升[1] 李建虎[1] 刘彦普[1] 雷德林[1] 周树夏[1] 

机构地区：[1]第四军医大学口腔医院颌面外科,710032

出　　处：《实用口腔医学杂志》2003年第3期228-230,共3页Journal of Practical Stomatology

基　　金："九五"指令性课题"颌面创伤救治研究"资助;编号 :0 9L0 4 7

摘　　要：目的 :观察新型点爆源爆炸伤后颌骨的致伤效应。方法 :选用 0 .1g微球形爆炸源于兔颌面部引爆致伤 ,分别于伤后 6h、3、7d观察伤情 ,并在伤区外 0 .5、1.0cm处切取下颌骨标本 ,HE、改良三色法染色、墨汁灌注制作骨磨片观察下颌骨的病理变化及微循环变化。结果 :下颌骨致伤后 6h伤区骨断端骨组织无明显变化 ;伤后 3d骨断端明显炎细胞浸润 ,未见明显骨坏死 ;伤后 7d骨断端骨质不完全坏死 ,0 .1cm外骨质结构基本正常 ,皮质骨及松质骨出现明显的修复活动。结论 :爆炸伤伤口污染严重 。Objective: To study the injury characteristics of blast injury in maxillofacial region wounded by spherical explosive. Methods: Spherical explosive was used to wound maxillofacial region in rabbits , after gross observation of the trauma , bone tissue specimens were collected from 0.5 or 1.0 cm to the boundary of wound 6 hours, 3 and 7 days after wounding respectively, the samples were prepared and stained with HE and modified Mallory's trichrome staining and observed under light microscope . Microcirculation in wounded bone was studied by ink injection and observed in ground bone sections. Results: No changes were found 6 hours after injury. Inflammatory infiltration were found 3 days after injury.Osteonecrosis was observed 7 days after injury, the structure of bone beyond 0.1 cm of the wound was found to be normal and restoration of bone was observed. Conclusion : Pathological changes of mandible injured by spherical explosive are similar to those of usual fracture except that the wound of blast injury is seriously polluted.

关 键 词：下颌骨爆炸性损伤 致伤效应 实验研究 面部损伤 病理学 

分 类 号：R826.5[医药卫生—临床医学]