アブミ骨除去術症例における側頭骨病理学的検討術後15年以上の長期経過例について

抄録

Twenty-three temporal bones from 14 patients who had undergone stapedectomy more than 15 years preceding death were studied mictoscopically. A foreign body reaction, which was found in the ears with a PE prosthesis, was hardly seen in the ears with other prostheses. The resorption of the incus was not severe and graft membranes were adequate barrier between the middle ear and the inner ear. Therefore, it was suggested that prostheses and graft membranes were stable for long term after stapedectomy.