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临床上普遍观察到乳突气化不良者侧窦至外耳道的距离较短;但至今缺乏确切的测量,本文的目的是对乳突气化范围和侧窦至外耳道的距离之间的关系进行定量观察,分二组测量乳突气化范围和侧窦位置。组Ⅰ由75k,150正常耳组成,组Ⅱ由148例乳突硬化者的150耳组成,其中30耳为单纯性慢性中耳炎,120耳为胆脂瘤,两组年龄18～70岁,性别分布相等,在乳突 Schüller 氏侧位摄片上,测量侧窦前缘至外耳道后缘的最短距离和乳突气化面积。结果:组Ⅰ,150正常耳的平均距离13.5±2.8mm;组Ⅱ,硬化乳突的平均距离7.8±1.7mm,两组平均距离相差42%,结果有显著统计学意义
It is generally clinically observed that the distance between the lateral sinuses and the external auditory canal in mastoid patients is short; however, to date, the exact measurement is lacking and the purpose of this paper is to quantify the relationship between the mastoid gasification range and the distance from the lateral sinuses to the external auditory canal Observed, divided into two groups mastoid gasification range and lateral sinus position. Group I consisted of 75k and 150 normal ears. Group II consisted of 150 ears of 148 mastoid sclerosis, of which 30 ears were simple chronic otitis media and 120 ears were cholesteatoma. The two groups were between 18 and 70 years old. The gender distribution Equal to the mastoid Schüller’s lateral radiographs to measure the shortest distance between the anterior edge of the lateral sinus and the posterior edge of the external auditory canal and the mastoid gasification area. Results: The average distance between normal group Ⅰ and group 150 was 13.5 ± 2.8mm. The average distance between group Ⅱ and scleroderma was 7.8 ± 1.7mm, the difference between the two groups was 42%. The result was statistically significant