CAJ | 학술논문

目的：探讨乳突根治术后不干耳的解剖因素及预防措施。方法以2011年7月～2013年9月因乳突根治术后不干耳就诊的患者36例（36耳）作为研究对象（不干耳组），以干耳患者100例（100耳）为对照组，对两组术前颞骨轴位及冠位CT资料进行对比分析，比较两组脑板、乙状窦、鼓室窦、面神经、颈静脉球等解剖情况。结果不干耳组的颞骨C T显示脑板低位者占36．11％（13／36），鼓室盖骨质不连续者占30．56％（11／36），乙状窦前移者占41．67％（15／36），面神经骨管破坏者占41．67％（15／36），面神经水平段下移者占30．56％（11／36），鼓室窦深位者占25．0％（9／36），均高于对照组（均为 P＜0．05）。不干耳组颈静脉球高位者占11．11％（4／36），与对照组（15．00％）相比较，差异无统计学意义（P＞0．05）。结论本组乳突根治术后不干耳患者的主要颞骨解剖异常因素发生率由高到低依次为乙状窦前移、面神经骨管缺损、脑板低位、鼓室盖骨质不连续、面神经水平段低位、鼓室窦深位等。
목적：탐토유돌근치술후불간이적해부인소급예방조시。방법이2011년7월～2013년9월인유돌근치술후불간이취진적환자36례（36이）작위연구대상（불간이조），이간이환자100례（100이）위대조조，대량조술전섭골축위급관위CT자료진행대비분석，비교량조뇌판、을상두、고실두、면신경、경정맥구등해부정황。결과불간이조적섭골C T현시뇌판저위자점36．11％（13／36），고실개골질불련속자점30．56％（11／36），을상두전이자점41．67％（15／36），면신경골관파배자점41．67％（15／36），면신경수평단하이자점30．56％（11／36），고실두심위자점25．0％（9／36），균고우대조조（균위 P＜0．05）。불간이조경정맥구고위자점11．11％（4／36），여대조조（15．00％）상비교，차이무통계학의의（P＞0．05）。결론본조유돌근치술후불간이환자적주요섭골해부이상인소발생솔유고도저의차위을상두전이、면신경골관결손、뇌판저위、고실개골질불련속、면신경수평단저위、고실두심위등。
Objective To explore the main anatomical factors for relapse in patients underwent radical mas-toidectomy and discuss the preventive measures .Methods A retrospective study was carried out 36 patients who had underwent radical mastoidectomy and 100 patients (100 ears) who had been cured underwent radical mastoidectomy during July 2011 toSeptember 2013 .The patients underwent axial and coronal temporal Computed Tomography (CT) .The incidence of low -lying middle cranial fossa ,high jugular bulb ,anterior locati(36 ears)on of sigmoid si-nus ,dehiscent tympani tegmen ,dehiscent of the facial nerve canal ,large sinus tympani ,low -lying horizontal facial nerve were recorded .Results The incidence of low -lying middle cranial fossa(36 .1% ) ,anterior location of sig-moid sinus(41 .7% ) ,dehiscent tegmen tympani (30 .6% ) ,dehiscent of the facial nerve canal (41 .7% ) ,large sinus tympani(25 .0% ) ,low -lying horizontal facial nerve(22 .2% ) were higher than those of in the normal group .There was no significant difference in high jugular bulb .Conclusion The main anatomical factors for relapse in patients un-derwent radical mastoidectomy were low -lying middle cranial fossa ,anterior location of sigmoid sinus ,dehiscent tegmen tympani ,dehiscent of the facial nerve canal ,large sinus tympani ,low -lying horizontal facial nerve .