Maragos N E
Mayo Foundation, Department of Otorhinolaryngology, Rochester, Minnesota 55905, USA.
J Voice. 1998 Mar;12(1):107-11. doi: 10.1016/s0892-1997(98)80082-9.
This paper describes the dimensions and placement of a standardized Isshiki Type I thyroplasty window and the thickness of the thyroid cartilage at the window corners. In addition, the intraoperative optimal medialization of a series of windows is compared to these cartilage thickness measurements and these comparisons analyzed for their implications in surgical approach. Fifty-one Type I thyroplasty windows were fashioned on 42 larynges (cadaveric and surgical). Measurements were taken of the window sizes, depth of medialization (surgical cases), and thickness of the thyroid cartilage at the four corners of the rectangular window. Sexes were kept separate because of inherent size differences of male and female larynges. From these physical measurements it is found that: (1) the thyroid cartilage window is not uniform in thickness throughout; there is a gradation of thickness from anterior to posterior and from superior to inferior; (2) when comparing the average depth of medialization to the window cartilage thickness in a standardized Isshiki window, the average distance of window depression almost equals the thyroid cartilage thickness, whereas posteriorly there is slightly more distance between the external surface of the window cartilage and the internal surface of the surrounding thyroid cartilage. Implications of the varying thickness of the thyroid cartilage and its relationship to the average depth of medialization in a standardized Isshiki thyroplasty window are discussed.
本文描述了标准化的石崎I型甲状成形术窗口的尺寸和位置，以及窗口拐角处甲状软骨的厚度。此外，还将一系列窗口术中的最佳内移情况与这些软骨厚度测量值进行了比较，并分析了这些比较结果对手术方法的影响。在42个喉部（尸体和手术标本）上制作了51个I型甲状成形术窗口。测量了窗口尺寸、内移深度（手术病例）以及矩形窗口四个角处甲状软骨的厚度。由于男性和女性喉部存在固有的尺寸差异，因此按性别分别进行测量。从这些物理测量中发现：（1）甲状软骨窗口的厚度并非处处均匀；从前到后、从上到下存在厚度梯度；（2）在标准化的石崎窗口中，将平均内移深度与窗口软骨厚度进行比较时，窗口凹陷的平均距离几乎等于甲状软骨厚度，而在窗口后部，窗口软骨外表面与周围甲状软骨内表面之间的距离略大。本文讨论了甲状软骨厚度变化及其与标准化石崎甲状成形术窗口平均内移深度的关系。
