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手术方法:切口位于龈唇及龈颊沟,必要时超越中线至对侧上颌粗隆,切口深达骨膜,面部软组织从上颌的前面游离至眶下孔,保留眶下神经及血管。鼻小柱从上颌前棘游离。贯通切口将鼻中隔软骨与鼻翼软骨的内侧脚分离,再沿前庭阈作环状切开,仔细识别外上软骨,并小心地将鼻软组织从鼻背软骨及骨性部分离,这样就可使面部的中1/3及鼻脱套,直达鼻根及眶下孔部。牵开软组织,接需要切除骨质,便能进入鼻内及鼻咽区,通常当进入上颌窦时,梨状孔边缘的骨组织及上颌骨的升突用咬骨钳咬除,鼻侧壁连同下鼻甲用骨凿及骨剪移除。于是筛窦广泛暴露,鼻中隔可从附着部游离,并推向一边。蝶窦的前壁
Surgical methods: The incision is located in the gingival lip and gingival cheek groove, if necessary, go beyond the midline to the contralateral maxillofacial, the incision deep as periosteum, facial soft tissue from the front of the maxillary free to the infraorbital foramen, retain the infraorbital nerve and blood vessels. Columella free from the anterior maxillary spine. Through the incision nasal septal cartilage and alar cartilage medial foot separation, and then along the vestibular threshold for annular incision, carefully identify the outer cartilage, and carefully the nasal soft tissue from the nasal backbone and the bony part of the separation, so you can make the face 1/3 and nasal removal, direct nasal root and infraorbital hole. Distraction of the soft tissue, then the need to remove the bone, can enter the nasal and nasopharyngeal area, usually when entering the maxillary sinus, pear-shaped edge of the bone tissue and the maxillary ascending process with rongeur bite, nasal wall Together with the inferior turbinate bone chisel and bone scissors removed. As a result, the ethmoid sinus is widely exposed and the nasal septum is free from the attachment and pushed aside. Sphenoid anterior wall