Objective To observe the effects of lateral attic wall reconstruction and sealing of attic cell in prevention of recurrence of cholesteatoma and limitation of ossicular chain after tympanoplasty.

• 目的 观察上鼓室封闭和外侧壁重建技术在防止鼓室成形术后胆脂瘤复发或听骨链运动受限中的效果。