Performation of surgical procedures anterior to ethmoid bulla can avoid risks of the other models, therefore, endoscopic frontal sinusotomy in the route anterior to ethmoid bulla is a safe model.
结论通过内镜对额窦开口及周围解剖结观察,认为星状裂作为恒定解剖标志是识别额窦开口关键区域。筛泡前径路是内镜下额窦开放入路,能避免其他径路存在某些风险。