Department of Otorhinolaryngology, Head and Neck Surgery, Division of Phoniatrics, University Hospital Basel, Basel, Switzerland.
Department of Otorhinolaryngology, Head and Neck Surgery, Division of Phoniatrics, University Hospital Basel, Basel, Switzerland.
J Voice. 2020 Jan;34(1):145-149. doi: 10.1016/j.jvoice.2018.07.019. Epub 2018 Aug 29.
OBJECTIVES/HYPOTHESIS: Medialization thyroplasty (MT) has become a prominent method for treating glottal insufficiency. This study aimed to visualize the biomechanical influence of a medialization implant on arytenoid cartilage, particularly on the length and level of paralyzation in the vocal fold, in patients with unilateral vocal fold paralysis.
Prospective study.
We recruited 15 patients (10 men, 5 women) with unilateral vocal fold paralysis that underwent MT with a Montgomery® thyroplasty implant. We performed high-resolution computed tomography of the arytenoid cartilage before and after MT and analyzed the three-dimensional images. To visualize the movement of the arytenoid and to measure the lengthening of the vocal fold, we superimposed pre- and postoperative 3D images with MIMICS software.
On the affected side, the implant pushed the arytenoid backwards. In addition, the vocal process of the arytenoid was inwardly rotated. These movements resulted in an elongated, augmented vocal fold on the affected side.
MT led to an elongated, medialized vocal fold on the treated side. After the intervention, the vocal folds on both sides were the same length in the phonatory position.
目的/假设：杓状软骨内移术（MT）已成为治疗声门不全的主要方法。本研究旨在观察杓状软骨内移植入物对单侧声带麻痹患者杓状软骨的生物力学影响，特别是对声带麻痹的长度和水平的影响。
前瞻性研究。
我们招募了 15 名（10 男，5 女）单侧声带麻痹患者，这些患者均接受了 Montgomery® 杓状软骨成形术植入物的 MT 治疗。我们在 MT 前后对杓状软骨进行了高分辨率计算机断层扫描，并对三维图像进行了分析。为了可视化杓状软骨的运动和测量声带的伸长，我们使用 Mimics 软件对术前和术后的 3D 图像进行了叠加。
在患病侧，植入物将杓状软骨向后推。此外，杓状软骨的声带突向内旋转。这些运动导致患病侧声带变长、变厚。
MT 导致治疗侧的声带变长、向内侧移位。干预后，发声位时两侧声带长度相同。
Zotero 插件