关键词: 鼓膜成形术；手术显微镜；耳内镜；移植材料

Abstract:

ObjectiveT  o evaluate the outcomes of myringoplasty for various specific kinds of perforations of the ear drum via endotoscope or operating microscope with different materials.  Methods  109 patients(109 ears) with perforations of the ear drum were recruited from November 2007 to March 2009 . The patients were divided into 3 groups according to the size and position of perforations of the ear drum: 31 accepted myringoplasties with a fat plug , 43 accepted perichondrium via  endotoscope, and 35 accepted fascia musculares via an operating microscope.  Results  After a follow up of 6~18 months, the healing rates of perforations of the ear drum in the three groups were 90.3 %, 90.7% and 91.4%, respectively.  Average pure-tone hearing thresholds improved significantly after operation in each group（P＜0.05).  Conclusions   According to the size and position of perforations of the ear drum, we can select endotoscope or operating microscope  and different materials for myringoplasty. For central type of perforations, the application of endotoscope with fat plug or perichondrium is reliable  and  minimally invasive.

Key words: Myringoplasty;  Operating microscope; Oto-endoscope ; Material