简介:ObjectiveThepurposeofthispaperistostudythedevelopmentofthelenticularpro-cessofincusandwhetherthelenticularprocessesareseparatingossiclesinossicularchain.MethodsThematerialsofpresentstudywereused223incuseswhichincluded206incusesfron163abortionfetuses,7fron4diedfetuses,10fromadults.Therelationbetweenthelonglimbsofincusandthelenticularprocesswasstudiedbyobservingthemicro-structureandtissuesectionwithmicroscope.ResultsItwasfoundthatthelenticularprocessnotonlyhasitsownossificationcenterbutalsoossifywithincarti-lages.Thelonglimbofincusconnectsthelenticularprocesswithfibroustissue.ConclusionTheresultshowedthatthelenticularprocessmaybethesmallestossiclesinthehumanbody.
简介:目的探讨以自体砧骨重建听骨链的开放式IIIa型鼓室成形术的听力改善疗效。方法回顾性收集16例(16耳)因慢性化脓性中耳炎或胆脂瘤中耳炎接受开放式Ⅲa型鼓室成形术患者的临床资料,所有病例均采用自体砧骨进行听骨链重建。术后随访3-6个月,评估患者手术后听力改善情况,分析指标为手术前后言语频率的纯音听阈及气骨导差。结果所有均达到干耳。纯音气导听阈从术前的45.2到干耳。降至术后的30.6的干耳。纯音气导听阈(P〈0.05)。术前、术后气骨导差分别为33.1、术后7dB及19.8、术后7dB分别为从术前的析,其中气骨导差小于20dB者占62.5%(10/16)。结论在本组病例中,以自体砧骨行听骨链重建开放式Ⅲa型鼓室成形术,获得了较好的近期听力改善效果,其远期疗效有待于进一步观察。