Cadaveric comparison of canine fossa vs transnasal maxillary sinus access.

Abstract:

OBJECTIVE:Anatomic limitations complicate complete eradication of debris from the maxillary sinus using an exclusively transnasal (TN) endoscopic technique. Creation of a canine fossa trephination (CFT) permits a more direct approach than removal via the maxillary ostium. METHODS:Microdebrider eradication of debris completely filling the maxillary sinus was performed on 5 thawed fresh-frozen cadaver heads (10 sides) using a TN or CFT approach. Postdebridement computed tomography (CT) scanning assessed remaining debris. Additional outcome measures included time of debris removal, number of different angled blades utilized, and clogging. RESULTS:A significantly greater amount of debris was left after the TN approach compared with CFT (3.88 cm(3) vs 2.88 cm(3), p = 0.015). Median blade utilization was significantly higher with the TN approach vs CFT (4 vs 1, p < 0.002). Time for debris eradication with CFT was similar regardless of expertise (323.4 vs 272.4 seconds, p = 0.21), but the TN approach showed a statistical difference in time-to-completion (698.8 vs 438.51 seconds, p = 1.7 × 10(-5)). CONCLUSION:Controversy surrounds the appropriate application of CFT due to disease process and approach-related morbidity. Rhinologists should have numerous well-studied options at their disposal. This model suggests that maxillary debris removal is accomplished more thoroughly with fewer microdebrider blades when a CFT approach is employed.

authors

Feldt BA,McMains KC,Weitzel EK

doi

10.1002/alr.20022

subject

Has Abstract

pub_date

2011-05-01 00:00:00

pages

183-6

issue

3

eissn

2042-6976

issn

2042-6984

journal_volume

1

pub_type

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