Polyethylene TubeによるColumella Prosthesis

―比較的長期観察を行い得た11症例についての私達の経験―

抄録

By using polyethylene tube prosthesis, the authors attempted to reconstruct a loss of continuity of the ossicular chain in eleven cases of chronic otitis media. The operations methods for treating otitis media mentioned above were as follows; i. e., malleo-stapediopexy, incudo-stapediopexy, extending of the stapes and artificial columella in case of missing stapes plate. Especially, the authors devised a new technique in the establishment of an incudostapediopexy. Performing malleo-stapediopexy, incudo-stapediopexy and extending of the stapes by means of polyethylene tube prosthesis, a loss of continuity of the ossicular chain was treated successfully and excellent results for improvement of hearing ability were obtained. Whereas in case of missing stapes plate, artificial columella did not present any demonstrable restoration of hearing ability. It should be stressed here in passing, that the restoration of hearing ability previously described continued more than at least one year, and that any demonstrable recurrence of middle ear inflammation was not observed excepting a case in whom after months of tympanoplasty inflammation recurred and patient's loss of hearing returned to the preoperative one.