Abstract
We retrospectively reviewed 12 cases of revision stapes surgery for otosclerosis. Clinical history, hearing level, previous surgical treatment, intraoperative findings in the revision surgery and postoperative clinical course were noted. The pathological enlargement of the wire loop in 2 cases, necrosis of the long process of incus in 8 cases and bony closure of the fenestrated footplate in 4 cases were observed intraoperatively. In cases with necrosis of the incus, medial side of the long process was the most common part of the erosion. In 10 of 12 cases, successful hearing results were obtained after the revision surgery. In the primary surgery, adequate choice and proper adaptation of the artificial ossicle are necessary. To avoid excessive pressure of the piston loop to the incus, especially to the medial side of the long process is the most important point for preventing the incus necrosis. Furthermore preservation of mucosa around the incus was also recommended. Hearing result after the revision surgery in our series had favorable prognosis, however, the adequate select of the operative procedure for each pathogenesis is necessary.
