Endoscopic sinus surgery which is the commonly performed nasal surgery has its own problems ifnot performed properly. Success of maxillay sinus antrostomy depends on including the naturalostium to the antrostomy. For this to happen the natural ostium should be identified during thesurgical procedure. Common cause of failure in endoscopic sinus surgery is the failure to addressthe uncinate process. In all cases it should be removed completely before proceeding further.
