PMID: 18720879Aug 30, 2008Paper

Comparative evaluation of over-under myringoplasty and underlay myringoplasty for repairing tympanic membrane perforation

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery
Wandong SheXiaoqiong Ding

Abstract

To evaluate the effect of over-under myringoplasty technique on repairing tympanic membrane perforation regarding with the rate of perforation closure, the frequency of postoperative complications occurrence and the level of hearing improvement. In this retrospective study, a total of 74 patients (77 ears) underwent myringoplasty and had been followed up for over 6 months, which was performed by means of the underlay technique in 44 patients (45 ears) and over-under technique in 30 patients (32 ears) from Jan 2002 to Jan 2007. In the underlay group, the grafted membrane was placed medial to the remaining drum and the manubrium of the malleus. In the over-under group, the grafted membrane was placed under the remaining drum and over the malleus. Comparatively evaluate the effect of the underlay technique and that of the over-underlay technique on repairing tympanic membrane perforation. The rate of perforation closure and hearing improvement in the underlay group of 45 ears was 89.0% and 57.5% respectively, while that in the over-under group of 32 ears were 87.5% and 71.9% respectively. The air-bone gap decreased by 4.9 dB in the underlay group, while it decreased by 9.7 dB in over-under group. After more than 6 months of follow...Continue Reading

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