Visvanathan Anjana, Rinaldi Vittorio, Visvanathan Pumalur G
Vikram ENT Hospital and Research Institute, Coimbatore, India.
Ann Otol Rhinol Laryngol. 2011 Jun;120(6):377-80. doi: 10.1177/000348941112000605.
Congenital stapes ankylosis is reported to have an occurrence rate of 3% to 4%, and it represents 20% to 35% of ossicular malformations. Surgical treatment of congenital stapes ankylosis is described to be satisfactory in the large majority of the case series reported in the literature. In these cases, special attention should be paid to exclude any aberrations of the course of the facial nerve, which have been demonstrated to be frequently associated with congenital middle ear malformations. We describe a case of congenital stapes ankylosis associated with a previously unreported facial nerve abnormality, characterized by the presence of an empty fallopian canal in combination with a dehiscent facial nerve running over the footplate and almost totally covering it.
据报道，先天性镫骨固定的发生率为3%至4%，占听骨链畸形的20%至35%。文献报道的大多数病例系列中，先天性镫骨固定的手术治疗效果令人满意。在这些病例中，应特别注意排除面神经走行的任何异常，因为已证明这些异常常与先天性中耳畸形相关。我们描述了一例先天性镫骨固定合并一种此前未报道的面神经异常的病例，其特征为面神经管空虚，同时面神经裂缺，走行于镫骨足板上方并几乎完全覆盖足板。
