Neuman T R, Hengesteg A, Lepage R P, Kaufman K R, Woodson G E
Division of Otolaryngology-Head and Neck Surgery, University of California, San Diego.
Ann Otol Rhinol Laryngol. 1994 Apr;103(4 Pt 1):265-70. doi: 10.1177/000348949410300402.
To determine whether variation in suture placement could improve the results of the arytenoid adduction procedure, a model was developed using fresh human cadaver larynges. Three-dimensional (3-D) motion of the arytenoid was determined by utilizing computed tomographic imaging with radiopaque markers on the apex and muscular and vocal processes. By utilizing principles previously applied to the study of rigid body mechanics for the carpal, knee, and tarsal joints, rotation and translation of the arytenoid about the axial, coronal, and sagittal axes were calculated. Subglottic airflow resistance was measured before and after the procedure. Posterior glottic closure was reproducibly achieved, as determined by computed tomographic imaging and airway resistance. Conflicting reports on cricoarytenoid joint mechanics can be attributed to reliance on trigonometric analysis of two-dimensional images, which results in errors in out-of-plane motion. This paper presents a useful model for obtaining detailed anatomic information describing arytenoid 3-D motion.
为了确定缝线放置的变化是否能改善杓状软骨内收手术的效果，使用新鲜人类尸体喉部建立了一个模型。通过在杓状软骨尖部以及肌肉突和声带突上使用不透射线标记的计算机断层扫描成像来确定杓状软骨的三维（3-D）运动。利用先前应用于腕关节、膝关节和跗关节刚体力学研究的原理，计算杓状软骨围绕轴、冠状和矢状轴的旋转和平移。在手术前后测量声门下气流阻力。计算机断层扫描成像和气道阻力显示，可重复性地实现了声门后关闭。关于环杓关节力学的相互矛盾的报告可能归因于依赖二维图像的三角分析，这会导致平面外运动的误差。本文提出了一个有用的模型，用于获取描述杓状软骨三维运动的详细解剖信息。
