Abstract: Objective To investigate the surgical approaches and curative effect for frontal sinus diseases. Methods A retrospective analysis was done into 28 cases (30 sides) of frontal sinus diseases, including frontal sinusitis, frontal sinus mucoceles, abscess mucoceles and osteoma, of which 17cases were treated by endoscopic sinus operation and 11 cases by the combination of nasal endoscopic surgery with external nasal surgery. Results All patients were tracked for up to 3-l2 months. The symptoms in all the cases were found to lessen or disappeared, and there were no serious operative complications. Conclusion The cases that cannot be radically treated by endoscopic operation and the cases where nasal endoscope cannot safely reach the frontal sinus posterior wall or the pupil outside frontal cell should be treated by the combination of nasal endoscopic surgery with frontal sinus anterior wall fenestration. Before the operation, the doctor should carefully read CT and choose the proper operative approach; during the surgery, the doctor should carefully identify the anatomical structure, accurately locate the diseased spot and skillfully carry out the operation so as to avoid the occurrence of serious complications. Adequate attention should be paid to pre-operative comprehensive treatment and post-operative regular reexamination and cavity debridement.

Key words: Frontal sinusitis, Surgical approach, Endonasal endoscopic surgical procedures, operative