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鼓膜成形术素有内植法与外植法。据报道两种方法的穿孔愈合率均为80～90%,术后听力也不相上下。内植法有其优点:可探查鼓室,清除鼓膜内面大部分鳞状上皮,较易保持鼓膜与外耳道前壁的角度。作者设计两种改良内植法:甲法用于不同位置、大小干性鼓膜穿孔70例;乙法用于在各方面可与前述病例类比者32例。术中见听骨链活动良好、鼓室无感染、中耳粘膜均正常。大多采用耳后切口,少数穿孔位于鼓膜后部者采用耳内切口。甲法:翻开鼓室外耳道后壁皮瓣,探查鼓室。切除穿孔缘,去除槌骨柄内侧面上皮。取一片修薄的湿润颞筋膜植于槌骨柄内侧,使小
Tympanoplasty known as implantation and explant. It is reported that the two methods of perforation healing rates were 80 ~ 90%, postoperative hearing is comparable. Implantation has its advantages: to explore the tympanum, remove most of the squamous inner surface of the tympanic membrane, easier to maintain the anterior tympanic membrane and external auditory canal angle. The authors designed two modified implants: a method for different locations, the size of dry tympanic membrane perforation in 70 cases; B method used in all aspects of the above cases with analogy in 32 cases. See intraoperative bone chain activity good, tympanic infection, the middle ear mucosa are normal. Mostly used after incision, a small number of perforation in the posterior tympanic membrane with ear incision. A method: open the outer wall of the external auditory canal wall flaps, exploration tympanum. Cut the perforation edge and remove the inner surface of the shank. Take a thin moist temporal fascia planted inside the mallet stem, so small