Research On Three-Dimensional Reconstruction Of Frontal Recess In Adolescents In Yunnan Region

Objective:the paper focuses on the anatomical characteristics of3D CT images of frontal recess area of ordinary adolescents, and explores the relationship between the adolescents frontal sinusitis cases and the anatomical structure variation of frontal recess.Methodology:There are41cases (82sides) collected in the first affiliated hospital of Kunming Medical University from January2010to November2011. The cases cover young people of14--18years old, average age (15.97±1.49) years old, and are divided into normal group and patient group according to whether they are affected by frontal sinusitis. There were25cases(47side) in nomal group, excepting3sides of the frontal sinus which are not developed; the group of patients includes16cases (32sides). The gender composition of them was24males and17females.Results:The patient group's frontal cell (type Ⅰ-Ⅱ) is56.25%, agger nasi cell is84.38%, supra-ethmoidal bulla recess is0%, suprabullar cell is40.63%, interfrontal sinus septal cell is9.38%, terminal recess is18.75%, frontal bullar cell is0%; The normal group's frontal cell (type Ⅰ-Ⅱ) is53.19%, agger nasi cell is74.47%, supra-ethmoidal bulla recess is6.38%, suprabullar cell is38.30%, interfrontal sinus septal cell is6.38%, terminal recess is14.89%, frontal bullar cell is0%; The uncinate process single superior attachment into the surrounding structures was identified to have the following distribution:65.96%to the lamina papyracea,23.40%to the middle turbinate,10.64%to the skull base of normal group;75.00%to the lamina papyracea,15.63%to the middle turbinate,9.38%to the skull base of patient group; There are no statistical significances in frequency differences between the normal group and the patient group. There are statistical significances in transverse diameters of the frontal sinus ostium except the transverse diameters of right frontal sinus ostium between front-back side.Conclusion:To identify the anatomical structure of frontal recess area of adolescents aged from14-18based on three-dimensional imaging anatomy, helps surgeons to correctly choose treatment of adolescents'frontal sinusitis, and enables them to choose personalized intranasal endoscopic frontal sinus surgery methods, and promotes the success rate of the surgery. It also identified that the occurrence rate of all cells in frontal recess has no clear relevance to the occurrence rate of adolescents'frontal sinusitis, whereas the front-back and right-left side of frontal sinus ostium may be the cause of adolescents' frontal sinusitis, and suggests that mucosal inflammatory lesions may also be the cause of adolescents'frontal sinusitis.