1987 年 1987 巻 Supplement16 号 p. 70-78
We report five cases of congenital ossicular chain malformation consisting of 3cases of stapes fixation and one each of incudostapedial disruption and mailer fixation. The case of stapes fenestration with TORP and the chain reconstruction of incudostapes with a stainless steel wire obtained satisfactory hearing after operation. But hearing gain of another two cases were not satisfied.