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颅底中央区范围是上界为筛板、下界为颈椎、外界为颈内动脉,中间包括斜坡和蝶窦,此区大多数肿瘤具有生长缓慢、无转移、对放疗不敏感的特性,因此宜行手术治疗。由于颅底肿瘤、尤其是颅底中央区肿瘤所在的解剖位置特殊,传统手术的前额径路或侧鼻径路会导致不同程度的脑组织损伤与遗留面部畸形。为了克服上述缺点,作者推荐选用改良的Le Fort型分段截骨术作为颅底中央区肿瘤切除的新径路。
Central skull base area is the upper bound of the sieve plate, the lower bound of the cervical spine, the external carotid artery, the middle slope and sphenoid sinus, the majority of tumors in this area has slow growth, no metastasis, radiotherapy is not sensitive to the characteristics, it is appropriate Surgical treatment. Due to the special anatomical location of tumors in the skull base, especially in the skull base area, traditional forehead pathways or lateral nasal pathways lead to different degrees of brain tissue damage and residual facial deformities. To overcome these shortcomings, the authors recommend the use of modified Le Fort segmented osteotomy as a new approach to tumor resection in the central skull base.