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额外侧前颅底锁孔入路能够较好的显示Willis环前侧方、鞍区及其周围颅底结构,特别是鞍前、鞍旁等区域周围颅底面的解剖结构,在处理小型的嗅沟脑膜瘤、鞍结节脑膜瘤、垂体瘤、颅咽管瘤及前循环动脉瘤等病变时具有其独特的优势。额外侧前颅底锁孔入路损伤较传统的额下入路大大减小,显露范围较眶上锁孔入路更广泛,避免了传统眶上锁孔入路损伤眶上神经、额窦开放性感染等可能的并发症及对于贴近中线部位解剖结构显露的局限性。此入路对于鞍区诸结构的显露可以达到与翼点锁孔入路相当的效果,且无需磨除蝶骨嵴及过多地剥离颞肌。
Extra lateral anterior cranial base keyhole approach can better show the Willis ring in front of the side, the saddle area and its surrounding skull base structure, especially the anterior saddle, parasellar and other areas around the cranial base of the anatomical structure, handling small olfactory Ditch meningioma, saddle nodular meningioma, pituitary tumor, craniopharyngioma and anterior circulation aneurysms and other lesions has its unique advantages. Extra lateral anterior cranial base keyhole approach injury compared with the traditional inferior frontal approach greatly reduced, revealing the range of supraorbital keyhole approach more widely, to avoid the traditional supraorbital keyhole injury of the supraorbital nerve, frontal sinus open Sexual infection and other possible complications and the anatomy of the site close to the midline revealed the limitations. This approach to the structure of the saddle area can be revealed with the wing point keyhole approach considerable effect, and no need to remove the sphenoid ridge and excessive stripping of the temporalis muscle.