耳内窥镜检查和录像对外伤性鼓膜穿孔的诊断意义

探讨耳内窥镜和录像检查对外伤性鼓膜穿孔的诊断意义。采用Hopkin型不同角度耳内窥镜和录像机对114例的 117只耳因头面部外伤累及到鼓膜者进行检查与分析。结果显示 :外伤性鼓膜穿孔在鼓膜的 4个象限都有发生 ,呈梭形、三角形、裂隙形、不规则形和半月形 ,其中前下象限占 6 1 91% ;非外伤性鼓膜穿孔多位于鼓膜的中央或边缘 ,呈圆形和椭圆形。耳内窥镜和录像检查可以客观真实地显示外伤性和非外伤性鼓膜穿孔的形态特征 ,能为外伤性鼓膜穿孔的法医学鉴定提供客观依据

Diagnostic significance of the traumatic perforation of the tympanic membrane by the otologic endoscopy and video tape recording

For the purpose of studying the diagnostic significance of the traumatic perforation of the tympanic membrane by the otologic endoscopy and video tape recording, one hundred and fourteen patients 117 ears, with ear drum injury caused by the head and facial trauma were examined and analyzed by using the Hopkin modle mult angle otologic endoscopy and the video tape recorder. The results showed that the traumatic perforation of te tympanic membrane were found in all four quadrants of the membrane,61 91% of the perforation located in the anteriorinferior quadrant,of the tense part of the membrane. The shapes of the perforation were spindle,triangular,slit, irregular and lune. The nontraumatic perforation of the tympanic membrane often located in the center or the margin of the membrane and were round or oval in shape. The otologic endoscopy and video tape recording can display the morphologic features of the traumatic and nontraumatic perforations of the tympanic membrane objectively and provide reliable diagnostic and investitgative method for the forensic practice.