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Updated: Nov 5, 2025

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
The displacement technique: a simple method for clearing maxillary sinus stubborn mucus
Shireen Samargandy1, Daniel J Lee1, John M Lee2,3
1Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, ON, Canada.
Background:
Clearing thick secretions from the hidden crevices of the maxillary sinus can be challenging and can increase operative time during endoscopic sinus surgery.
Methods:
We demonstrate the Displacement Technique as a user-friendly technique to address thick secretions within the maxillary sinus barring no orbital floor dehiscence. First, a wide maxillary antrostomy is performed. Then, a surgical pledget is placed in the maxillary sinus to displace the inspissated content into the nasal cavity using a curved suction. This process is repeated as necessary.
Conclusion:
The displacement technique is a simple and inexpensive method for addressing stubborn secretions.
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