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首页> 外文期刊>The Laryngoscope: A Medical Journal for Clinical and Research Contributions in Otolaryngology, Head and Neck Medicine and Surgery, Facial Plastic and Reconstructive Surgery .. >Three-dimensional arytenoid movement induced by vocal fold injections.
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Three-dimensional arytenoid movement induced by vocal fold injections.

机译：声带注射引起的三维关节突运动。

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OBJECTIVES/HYPOTHESIS: To quantitatively characterize arytenoid movement induced by vocal fold injection augmentation in an excised larynx model. STUDY DESIGN:: Laboratory and computational. METHODS: Vocal folds of human cadaveric larynges were injected with calcium hydroxylapatite. High-resolution computed tomography scans were obtained before and after injection. Densities corresponding to the arytenoid and cricoid cartilages were extracted and processed with custom MATLAB routines to generate selective three-dimensional reconstructions of the larynx. Pre- and postinjection positions of the arytenoid were compared. RESULTS: Vocal fold injections resulted in predominantly small-magnitude medial rotation and medial translation of the arytenoid. Movements in other directions as would be expected in physiologic adduction were not observed. CONCLUSIONS: Vocal fold injection augmentation induced passive movement of the arytenoid that has not been described previously. This movement does not reproduce the trajectory of physiologic adduction. This finding has implications for the treatment of unilateral vocal fold paralysis without arytenoid repositioning maneuvers.
机译：目的/假设：要定量表征在切除的喉部模型中声带注射增强引起的类人猿运动。研究设计：：实验室和计算。方法：将人尸体喉部的声带注射羟磷灰石钙。在注射之前和之后均获得了高分辨率的计算机断层扫描。提取对应于软骨和环软骨的密度，并使用定制的MATLAB例程进行处理，以生成喉的选择性三维重建体。比较了注射前后的类胡萝卜素位置。结果：声带注射主要导致小幅度的内侧旋转和突的内侧平移。未观察到生理内收中预期的其他方向的运动。结论：声带注射增强引起了类人猿的被动运动，这在之前没有描述。该运动不能再现生理内收的轨迹。这一发现对单侧声带麻痹的治疗没有提示类人猿复位手术具有重要意义。

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