中耳蜗转相对于卵圆窗和面神经管的解剖定位：对中耳蜗转耳蜗开窗术的启示。
Topography of the middle cochlear turn relative to the oval window and facial canal: implications for middle-turn cochleostomy.
文献信息
| PMID | 42806150 |
|---|---|
| 原文 | 在 PubMed 查看原文 ↗ |
| 发表日期 | 2026 |
| 作者 | Anjali Singal |
| 作者单位 | Department of Anatomy, All India Institute of Medical Sciences, Bathinda, Punjab, 151001, India. anjali_singal@rediffmail.com. |
| 期刊 | Surgical and radiologic anatomy : SRA |
| SCI 分区 | Q2 |
| IF | 1.5 |
| 研究类型 | 临床研究 · 临床 |
| 所属专科 | 耳科 |
中文摘要
目的： 迷路骨化对人工耳蜗电极插入构成重大挑战。在这种情况下，采用顺行/逆行方式的中耳蜗转耳蜗开窗术或双阵列电极插入是一种可行的选择。本研究的目的是评估中耳蜗转相对于前庭窗（卵圆窗）或卵圆窗（OW）和面神经管（FC）的解剖定位，以用于中耳蜗转耳蜗开窗术。
方法： 解剖了42具经福尔马林固定的尸体颞骨。测量了OW与360°处耳蜗之间的距离、OW与耳蜗之间的最小距离及其对应的耳蜗角度，以及耳蜗中耳蜗转与面神经管（FC）鼓室部之间的角度。
结果： OW与360°处耳蜗之间的距离、OW与耳蜗之间的最小距离、其对应的耳蜗角度以及耳蜗中耳蜗转与FC鼓室部之间的角度的平均值分别为3.03±0.42 mm、2.17±0.43 mm、324.5°±8.1°和117.4°±10.6°（104.7°-149.1°）。
结论： 耳蜗中耳蜗转与FC鼓室段之间角度的广泛变异强调了术前个体化角度测定的必要性。根据最佳文献检索，关于这些标志的数据匮乏。
英文摘要
PURPOSE: Labyrinthitis ossificans poses a significant challenge to cochlear implant electrode insertion. Middle-turn cochleostomy with anterograde/retrograde manner or double-array electrode insertion is a viable option, in such cases. The purpose of this investigation was to evaluate the topography of the middle cochlear turn relative to the fenestra vestibuli (ovalis) or oval window (OW) and facial canal (FC) as pertaining to middle turn cochleostomy.
METHODS: Forty-two formalin fixed cadaveric temporal bones were dissected. The distance between OW and cochlea at 360°, minimum distance between OW and cochlea and corresponding cochlear angle and angle between middle turn of cochlea and tympanic part of facial canal (FC) were measured.
RESULTS: The mean values for distance between OW and cochlea at 360°, minimum distance between OW and cochlea, its corresponding cochlear angle and angle between middle turn of cochlea and tympanic part FC were 3.03 ± 0.42 mm, 2.17 ± 0.43 mm, 324.5° ± 8.1° and 117.4° ± 10.6° (104.7°-149.1°) respectively.
CONCLUSION: The wide variation in the angle between the middle turn of the cochlea and the tympanic segment of FC underscores the need for individualized angle determination preoperatively. As per best literature search, there is paucity of data regarding these landmarks.