Analysis of long-term anatomic results of radical mastoidectomy.

A long-term, retrospective, non-controlled study was performed on the drainage results of mastoidectomy (both radical and modified radical) and the relevant statistical factors that could influence the anatomic outcome were defined. The present study took into consideration the same cohort of 200 patients we have communicated with before in our previous studies concerning the long-term functional results of mastoidectomy and long-term results of ossicular replacement with biovitroceramic prosthesis. The patients were clinically followed for the same period of 8.12 years. The drainage (anatomic) results, similar to previously published functional results, were defined by analytical function of the severity and the period of evolution of disease. The main goal was to define the situations and factors (presence of complications, type of disease, type of tympanic perforation or status of ossicular chain) that influenced the drainage results that could provide us with some type of anatomical prognosis. The follow-up started at the moment of complete epithelization for each cavity as time represents the main study comparison criteria. Drainage failure was assessed by the number of otorrhea episodes. It was concluded that practically and ideally, a maximum of 84% of the mastoid and petrous cells can be cleaned out. The results of 78% drainage success are congruent to this theory. The remaining 16% of cells may contain irreversible lesions.