乳突根治术是治疗慢性中耳炎的重要方法,但术后术腔宽大、自洁功能差、易感染一直是困扰耳科医生的难题,为消除宽大术腔,耳科医生采用多种方法充填术腔,如自体骨、异体材料、组织瓣等,但因吸收排异坏死等种种原因,未能广泛推广,开放术式仍是主流。为解决这一难题,我科自2002-01 Mastoid radical mastectomy is an important method for the treatment of chronic otitis media. However, the postoperative wide cavity, poor self-cleaning function and easy infection have always been the problems for the ear doctor. To eliminate the large cavity, the otologists use a variety of methods Cavity, such as autologous bone, allogeneic materials, tissue flap, etc., but due to absorption of rejection necrosis and other reasons, failed to widely promote, open surgery is still the mainstream. To solve this problem, our department since 2002-01