Objective: to provide anatomical basis in stopping clinical obstinate bleeding of posterior nasal by ligation of maxillary artery through the posteriorsinus.
目的：为临床顽固性鼻后部出血经上颌窦后壁径路上颌动脉结扎止血提供解剖学基础。
2
The anterior skull base tumors were resected by craniofacial approach through posterior wall of frontal sinus.
累及前颅底者采用经额窦后壁入路的颅面联合手术切除方法；
3
Conclusion: the open sinus elevation is a effective techniques for the augmentation of maxillary posterior region.