Friedrich G, Kainz J, Anderhuber F
Universitäts-HNO-Klinik Graz.
HNO. 1988 Jun;36(6):241-50.
We investigated the effect of thyroid cartilage asymmetry on the posterior glottis. 1. Patients with vocal disorders showing "crossing" of the arytenoid cartilages underwent phoniatric and logopedic investigation as well as CT scan of the larynx in the horizontal plane. The shape of the thyroid cartilage and its relation to the other laryngeal structures were measured and analysed quantitatively. 2. Laryngeal serial sections in the horizontal plane were made and analysed in the same way. 3. Experiments were done in which the configuration of the thyroid cartilage was varied and the muscular influences were stimulated to produce typical anomalies of the posterior glottis. These investigations showed that there is a correlation between the configuration of the supraglottic thyroid cartilage and anomalies of the posterior glottis. Irregular growth of the thyroid cartilage causes different positions of the aryepiglottic folds with different positions of the corniculate cartilage during phonation. The shape of the anomaly described by us correlated in all cases with reduced vocal ability. It can now be assessed by CT.
我们研究了甲状软骨不对称对声门后部的影响。1. 患有杓状软骨“交叉”的嗓音障碍患者接受了嗓音治疗和言语治疗检查以及喉部水平面的CT扫描。测量并定量分析了甲状软骨的形状及其与其他喉部结构的关系。2. 制作了喉部水平面的连续切片并进行了同样的分析。3. 进行了实验，改变甲状软骨的形态并刺激肌肉影响以产生声门后部的典型异常。这些研究表明，声门上甲状软骨的形态与声门后部的异常之间存在相关性。甲状软骨的不规则生长导致发声时杓会厌襞和小角软骨处于不同位置。我们所描述的异常形状在所有病例中均与发声能力下降相关。现在可以通过CT进行评估。
