Gulya A J, Steenerson R L
Department of Otolaryngology-Head and Neck Surgery, Georgetown University, Washington, DC, USA.
Arch Otolaryngol Head Neck Surg. 1996 Feb;122(2):130-2. doi: 10.1001/archotol.1996.01890140020005.
Traditionally, cochlear implantation has used the scala tympani (ST) for electrode insertion. When faced with ST ossification, the surgeon may elect to drill out the cochlea to accomplish partial electrode insertion. Theoretically, another option in this situation is to insert the electrode into the scala vestibuli (SV).
To determine whether or not the dimensions of the SV are sufficient to accommodate an electrode array so as to assess the feasibility of SV cochlear implantation.
The study of 20 normal human temporal bones, comparing the maximum diameter and surface area of the ST with those of the combined SV and scala media.
The dimensions of the SV and scala media were comparable to those of the ST and appeared sufficient to accommodate a cochlear implant electrode array.
It appears that the combination of SV and scala media is a viable alternative route for electrode insertion, at least on the basis of anatomic dimensions, in those cases in which the ST is obliterated.
传统上，人工耳蜗植入是通过鼓阶（ST）进行电极插入。当面临鼓阶骨化时，外科医生可能会选择钻开耳蜗以完成部分电极插入。理论上，在这种情况下的另一种选择是将电极插入前庭阶（SV）。
确定前庭阶的尺寸是否足以容纳电极阵列，以评估前庭阶人工耳蜗植入的可行性。
对20例正常人类颞骨进行研究，比较鼓阶与前庭阶和中阶组合的最大直径和表面积。
前庭阶和中阶的尺寸与鼓阶相当，似乎足以容纳人工耳蜗电极阵列。
在前庭阶闭塞的情况下，至少基于解剖学尺寸，前庭阶和中阶的组合似乎是电极插入的可行替代途径。
