由于CT和内窥镜问世，先进钻削技术的应用，对1914年Lothrop报告治疗慢性额窦炎用鼻外途径的手术方法提出改进。Lothrop手术是切除额窦内侧底部、鼻中隔上方和窦内隔板，形成较宽的鼻额管道，然而鼻外途径手术常致软组织塌陷和鼻额管狭窄。该作者对上述手术方式作了改进，经临 Due to the advent of CT and endoscopes, the use of advanced drilling techniques has led to improvements in the 1914 Lothrop report on surgical approaches to the treatment of chronic frontal sinusitis by the extranasal route. Lothrop surgery is to resect the medial frontal sinus, the septum above the nasal septum and the diaphragm, the formation of a wide amount of the nasal tube, however, nasal approach often leads to soft tissue collapse and nasal stenosis. The author made improvements to the above surgical procedures, after the Pro