Polycel®을 사용한 이소골 재건술의 청력 개선효과

Abstract

Background and Objectives：During the last decade, the surgical use of alloplasts has become more and more widespread among otologists. In this study, we evaluated the hearing results of ossiculoplasty using Polycel® prosthesis.

Subjects and Method：One hundred eighty eight cases who underwent ossicular chain reconstruction using Polycel® prosthesis and had been followed up postoperatively for more than 12 months at Severance Eye-ENT Hospital from 1998 to 2002 were reviewed retrospectively. Postoperative hearing results were assessed by measuring the postoperative air-bone gap (ABG) and closure in air-bone gap. Successful postoperative ABG criteria were defined as the following three groups；ABG of ≤10 dB, ABG of ≤20 dB, and ABG of ≤30 dB. Several prognostic factors such as the condition of middle ear mucosa and ossicles, presence or absence of cholesteatoma, surgical method, staging and revision surgery were analyzed.

Results：Of the total of 188 cases, 22 cases (11.7%) were ≤10 dB ABG, 96 (51.1%) cases were ≤20 dB ABG, and 158 (84.0%) cases were ≤30 dB ABG. The hearing results were good for healthy middle ear mucosa and cases which contained stapes superstructure, the hearing results were good.

Conclusion：Polycel® is a good material to be used in ossiculoplasty as a hydroxyapatite and autologous bone. In ossiculoplasty, good prognostic factors of the middle ear condition were healthy middle ear mucosa and the presence of stapes superstructure.