初次鼻内镜额窦开放术容易导致瘢痕形成,特别是当鼻丘气房处的阻塞和筛房或钩突去除不彻底的时候,瘢痕更易形成。因此,额窦开放的修正手术仍然是鼻内镜医师最难进行的手术。大多数医师认为对额窦复杂解剖结构的了解和对额窦隐窝黏膜的保护是额窦手术成功的关键。外科导航系统的 First open nasal endoscopic sinus surgery easily lead to scarring, especially when the nasal cavity at the blockage and removal of the sieve or uncinate process, the scar formation easier. Therefore, the modified sinus surgery is still the most difficult surgery for endoscopists. Most physicians believe that the understanding of the complex anatomy of the frontal sinus and the frontal sinus crypt mucosa protection is the key to the success of the frontal sinus surgery. Surgical navigation system