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作者对1组下颌骨后推手术患者进行调查,研究其手术前后咽气道间隙(pharyngeal airway space,PAS)面积和宽度的变化,并对结果进行讨论。 材料和方法 14例成年患者均行双侧升支矢状劈开术并后推下颌以矫正下颌前突。在术前2周、术后2周及术后远期(6个月～2年)行头颅侧位片检查。连接后鼻棘点和寰椎前结节点作为PAS的上界,经舌会厌襞中点做FH的平行线为PAS的下界,以咽后壁为PAS的后界,翼突下颌垂直平面(PTV)和舌根后缘为PAS的前界。以颏点到PTV垂
The authors investigated a population of patients with mandibular push-back surgery to investigate the changes in area and width of the pharyngeal airway space (PAS) before and after surgery and discuss the results. MATERIALS AND METHODS All 14 adult patients underwent bilateral ascending sagittal kyphoplasty and then pushed the lower jaw to correct the mandibular procession. Two weeks before surgery, 2 weeks after surgery and long after surgery (6 months to 2 years) cephalometric examination. After the connection of the nasal spine point and anterior node of atlas as the upper bound of PAS, by the tongue epigastric midpoint FH parallel to the lower line of the PAS to the posterior wall of the posterior pharyngeal PAS, the vertical plane of the pterygoid jaw ( PTV) and the posterior edge of the tongue base of PAS. To the PTV chin point down