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Effectiveness of the lateral pedicled endonasal flap for prevention of restenosis in frontal sinus drillouts

Volume: 60 - Issue: 6

First page: 462 - Last page: 470

R. Fischer - C.T. Seebauer - F. Zeman - C. Bohr - W. Hosemann - R. Weber - C. Rohrmeier - T.S. Kuehnel

Background: Frontal sinus median drainage according to Draf is an established procedure for achieving maximum drainage of the frontal sinus. Despite great efforts and several modifications, restenosis of the neo-ostium is still a persistent problem. This study presents an approach by implementing local mucosal flaps to prevent restenosis and compares it with the conventional technique without using the flap.
Methods: Description of endonasal, lateral pedicle mucosal flap. A Draf III procedure was performed on 156 patients between 2012 and 2021. Data for 123 of the included patients were retrospectively analyzed in terms of surgical indication, technique, postoperative aftercare and patency of the drainage pathway. The follow-up observation period was between 3 and 24 months.
Results: Treatment with the pedicle mucosal flap took place in 86 cases. 37 patients were treated as a control group without this flap. The analysis showed a significant association to the event "total closure of the drainage pathway" for surgical technique, as well as in the case of the presence of an allergy and the existence of Samter’s triad. Furthermore, there was a significant association between the onset of "near total closure of the frontal sinus ostium" and Samter’s triad, CRS and revision surgery was involved.
Conclusions: Use of an endonasal lateral pedicle flap for reconstruction of mucosal defects in frontal sinus surgery improves the long-term chances of a patent drainage pathway. Bone exposed by drilling was covered with a local mucosal flap for a faster epithelialization, healing and less scarring.

Rhinology 60-6: 462-470, 2022

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