Portmann D, Boudard P, Vdovytsya O
Institut G Portmann, 114 Avenue d'Ares, 33074 Bordeaux.
Rev Stomatol Chir Maxillofac. 2001 Aug;102(5):274-7.
Bone anchored hearing aid (BAHA), based on the concept of osseointegration, offers the possibility of restoring hearing in case of conduction or mixed deafness. We report our experience with 87 in 74 patients implanted from 1989 to 1999. The patients were divided into two major groups, with bilateral agenesia (22 cases) or chronic otitis media (52 cases). Anatomical results are very good. We got 3 extrusions with no osseointegration, 10% local infections and 3 traumas. Functional outcome was excellent, with 73 patients being fitted with 81 HC200, HC300 or HC360 prostheses. One patient had a functional failure. We stress the importance of rigorous audiometric criteria and the determinant factors of osseointegration, essentially the surgical technique. In patients with chronic otitis, BAHA offers a functional solution for those with no benefit from an air conduction hearing aid and who are not operable or decline a new operation for tympano-ossicular reconstruction. For cases of ear malformation, BAHA can be a temporary solution that does not damage the inner ear. Indeed, rehabilitation with a BAHA does not exclude the possibility of functional tympano-ossicular surgery when the child is older and if the anatomic conditions are favorable.
骨锚式助听器（BAHA）基于骨整合概念，为传导性或混合性耳聋患者恢复听力提供了可能。我们报告了1989年至1999年间对74例患者植入87个BAHA的经验。患者分为两大组，分别为双侧内耳发育不全（22例）或慢性中耳炎（52例）。解剖结果非常好。我们有3例植入物挤出且无骨整合，10%发生局部感染，3例出现创伤。功能结果极佳，73例患者佩戴了81个HC200、HC300或HC360假体。1例患者出现功能失败。我们强调严格听力测试标准以及骨整合决定因素（主要是手术技术）的重要性。对于慢性中耳炎患者，BAHA为那些无法从气导助听器中获益、无法进行手术或拒绝进行鼓室听骨链重建新手术的患者提供了一种功能性解决方案。对于耳部畸形病例，BAHA可以是一种不损害内耳的临时解决方案。事实上，当孩子长大后且解剖条件有利时，使用BAHA进行康复并不排除进行功能性鼓室听骨链手术的可能性。
