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Transcochlear approach for temporal bone cholestetoma with facial weakness

Material and Method: In this study, 10 cases with severe chronic otitis media(n= 3), cholesteatoma(n= 5), and adhesive otitis media(n= 2) were selected. At the 1 stage of operation, before mastoidectomy, cortex bone lid was harvested. Harvested autologous bone fragments with gelatin sponge soaked in b-FGF were implanted into the newly opened mastoid cavity and they were fixed by fibrin glue. Cortex bone lid was returned to the original position and was fixed by autologous bone pate. By the images of high resolution computed tomography (HRCT), whether MACs were regenerated or not were estimated. The Eustachian tube function were measured before and 9 to 12 months after the 1st stage operation.