Stage J, Bak-Pedersen K
Department of Otorhinolaryngology, Bispebjerg Hospital, Copenhagen, Denmark.
Clin Otolaryngol Allied Sci. 1992 Feb;17(1):6-9. doi: 10.1111/j.1365-2273.1992.tb00978.x.
In conventional underlay tympanoplasty the graft is placed medial to the malleus handle. The present study evaluates the results of a modification of this technique, in which the graft is placed lateral to the malleus handle, which has been dissected from the drum remnants. 39 ears with predominantly large or anterior pars tensa perforations were operated upon in this manner. After a median observation time of 20 months one ear was found to have a small reperforation. All ears had normal tympanomeatal angles, but 12 ears showed a small degree of laterofixation of the graft from the malleus handle. Analysis of the hearing showed good hearing improvement and no adverse effects attributable to the dissection of the ossicular chain. It is concluded that the technique is a good alternative to conventional underlay myringoplasty in ears with perforations involving the area anterior to the malleus handle.
在传统的夹层鼓膜成形术中，移植物置于锤骨柄内侧。本研究评估了该技术的一种改良方法的效果，即移植物置于已从鼓膜残余部分分离出来的锤骨柄外侧。39例主要为大穿孔或紧张部前部穿孔的耳朵接受了这种手术。经过20个月的中位观察期后，发现有1只耳朵出现小的再穿孔。所有耳朵的鼓室耳道角均正常，但有12只耳朵的移植物与锤骨柄之间出现了轻度的外侧固定。听力分析显示听力有良好改善，且未发现因听骨链分离导致的不良影响。结论是，对于穿孔累及锤骨柄前方区域的耳朵，该技术是传统夹层鼓膜成形术的一种良好替代方法。
