RESULTS In 548 mastoid obliteration and canalplasty cases, the shape of external canal were satisfied.The healing period was much shorter and recurrence rate was lower.

• 结果乳突填充外耳道成形术后外耳道形态良好，愈合时间显著缩短，术后复发率低，效果良好，符合外耳道生理及形态学要求。