The normal anatomy the spine is preserved since the frontalapproach takes advantage of normal tissue planes and does not require removal of any bone.
前路进入手术是利用正常的组织面，不需要去除任何骨结构；所以可以保留正常的脊柱解剖结构。
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
On either CTA, conventional angiography, or MRA the supraclinoid carotid arteries approach the midline and appear to be "kissing. " The frontal lobes may be abnormal.