Posterior translacrimal approach to the maxillary sinus

Area of Science:

• Otolaryngology
• Endoscopic Sinus Surgery

Background:

• Maxillary sinus visualization is crucial for diagnosing and treating sinonasal diseases.
• Traditional methods like grade 3 antrostomy have limitations in providing adequate views.

Purpose of the Study:

• To compare the efficacy of the posterior translacrimal approach versus grade 3 antrostomy for maxillary sinus visualization.
• To evaluate the safety and complication profile of the posterior translacrimal approach.

Main Methods:

• Cadaveric dissection involving grade 3 antrostomy followed by posterior translacrimal approach.
• Endoscopic visualization with electromagnetic navigation for maximal intramaxillary view documentation.
• Blinded assessment of endoscopic images by independent sinus surgeons.
• Prospective study of postoperative complications in patients undergoing the procedure.

Main Results:

• The posterior translacrimal approach yielded a significantly superior view of the maxillary sinus compared to grade 3 antrostomy in cadavers.
• In a clinical setting, only one patient (1/20) experienced a minor issue with lacrimal drainage at six months.

Conclusions:

• The posterior translacrimal approach is a highly effective alternative for maxillary sinus visualization.
• This technique presents a less radical option compared to existing methods, with a favorable safety profile.