It severed the spinal column just above the first cervical vertebra. 它就在第一颈椎(C1)骨之上将脊柱分隔开。
Brekelmas and Ryblcki firstly applied the finite element method to orthopedic biomechanics research in1972.The first cervical vertebra finite element model was established in1982 by Hosey. 后来逐渐将有限元方法应用于骨科生物力学的研究,建立了最早的颈椎有限元模型。
No sagittal closure were seen in this study. There were 70 % subjects whose position of velopharyngeal closure was at the level of the first cervical vertebra, 26.7 % above the level and 3.3 % below it. 腭咽闭合位置在第一颈椎(C1)平面者占70%,在该平面之上为26.7%,在该平面之下为3.3%。
Operations of superior and inferior based posterior pharyngeal flap were performed on the front of first and second cervical vertebra, which was safe distance from cervical sheath. 上、下蒂型咽后瓣手术主要在第1、2颈椎体前面的范围内进行,与双侧颈鞘具有一定的安全距离;
From the first time the anterior cervical plate was used for the treatment of cervical vertebra trauma, it was immediately used widely because of its obviously effect. 自颈椎前路钢板首次用于治疗颈椎创伤后,因其效果明显随即被广泛用于颈椎前入路手术。