额窦筛窦向眶顶气化的应用解剖

Applied anatomy of the pneumatization of frontal-ethmoid sinus toward the supper-orbit cell

目的:观察额窦、筛窦气房向眶顶气化情况。方法:对60具成人尸体头部标本额窦、筛窦向眶顶气化进行解剖观察,并结合全部标本的鼻窦冠状位CT扫描了解气化情况。结果:120侧标本气化眶顶骨板的有36.7％(44侧),其中气化整个眶顶者36.4％(16侧),气化部分眶顶者63.6％(28侧),气化眶顶的前颅底骨质内侧缘及外侧缘骨壁厚度分别为(0.3±0.1)mm(0.1-0.4mm)和(0.2±0.1)mm(0.1-0.3mm),无气化的前颅底骨质骨壁厚度为(0.9±0.3)mm(0.4-1.8 mm);CT扫描显示额窦、筛窦向眶顶气化结果与解剖观察一致。结论:了解额窦、筛窦气房向眶顶气化情况对预防鼻微创手术颅内及眶内并发症有重要的临床意义。

Objective: To study the pneumatization of the supraorbital cell of frontal-ethmoid sinus. Methods:Sixty adult cadaveric head specimens(34 male and 26 female) were studied with special atttention on the pneumatization of the supraorbital cell of frontal-ethmoid sinus, and all specimens were scanned by coronal CT. Results:36. 7% of all the specimens had supraorbital cell of frontal-ethmoid sinus and 36. 4% occupied the whole roof of orbit. The thickness of the inside and lateral anterior base of skull were 0. 3±0. 1 mm(0. 1-0. 4) mm and 0. 2±0. 1 mm(0. 1-0. 3) mm and the thickness of the anterior base of skull was 0. 9±0. 3 mm (0. 4-1. 8) mm in no pneumatization of the supraorbital cell of frontal-ethmoid sinus. The result of CT scanning coincided with the result of anatomical observation. Conclusion: To know the pneumatization of the supraorbital cell of frontal-ethmoid sinus is very important for the nasal minimal-invasive operation.