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作者研究100个颞骨标本,保存鼓膜及鼓室内软组织,观察Prussak氏间隙和听骨韧带。此100个标本中,16～86岁者89个,其中男54,女35;儿童11个,男6,女5。颞骨标本右侧54,左侧46。材料62%来自法庭,38%死于非耳鼻喉疾病的尸体。观察结果表明,槌骨除其颈部以外均位于Prussak氏间隙内;儿童颞骨标本槌骨前部见有槌骨前突起残余,成人萎缩缺如。17个标本槌骨后韧带及外侧韧带间有相当大间隙,随Prussak氏间隙和上鼓室扩展,胆脂瘤可发展至砧骨体及其短脚、鼓窦入口及鼓窦部10个标本无槌骨后韧带,胆脂瘤可经鼓室、上鼓室发展。7个标本侧韧带未向前达到槌骨前韧带,致Prussak氏间隙前移,胆脂瘤可从槌骨颈和上鼓室达鼓窦。6个标本无槌骨侧韧带及后
The authors studied 100 temporal bone specimens, preserved the tympanic membrane and tympanic soft tissue, and observed Prussak’s space and the ossicular ligament. Of the 100 specimens, 89 were aged 16-86 years, of whom 54 were males and 35 females, 11 were children, 6 were males and 5 were females. Temporal bone specimens right 54, left 46. 62% of the material came from the courts and 38% died of corpses other than ENT diseases. The observation showed that the mallard was located in the Prussak’s space except for its neck. The frontal part of the pedicel of the temporal bone showed remnants of the anterior protracted process. There were considerable gaps between the posterior malleolar ligament and the lateral ligaments in 17 specimens. With Prussak’s space and upper tympanum expansion, cholesteatoma could develop to 10 specimens of ankle body, short foot, entrance to the drum and the sinous sinus After the hammer bone ligament, cholesteatoma may tympanic cavity, the tympanic cavity development. Seven specimens of the lateral ligaments did not reach the anterior mandibular ligament, leading to Prussak’s space advancing, and cholesteatoma reaching the sinuses from the malocclusal neck and upper tympanic cavity. Six specimens without mandibular ligament and after