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Related Experiment Video

Updated: Mar 24, 2026

Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction
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Endonasal flap reconstruction in sinonasal malignancy.

Kalpesh Hathi1, Christopher J Chin1

  • 1Division of Otolaryngology - Head & Neck Surgery, Department of Surgery, Dalhousie University, Halifax, NS, Canada.

Frontiers in Oncology
|March 23, 2026
PubMed
Summary
This summary is machine-generated.

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The nasoseptal flap significantly improves outcomes for sinonasal malignancy surgery by enabling endoscopic resection and robust reconstruction, drastically reducing complications like cerebrospinal fluid leaks.

Area of Science:

  • Otolaryngology
  • Head and Neck Surgery
  • Neurosurgery

Background:

  • Sinonasal malignancies are rare head and neck cancers with poor prognoses.
  • Surgical resection is the primary treatment, but complications like CSF leaks can occur.
  • Endoscopic sinus surgery (ESS) allows for fully endonasal resection.

Purpose of the Study:

  • To review the history, use, and techniques of the nasoseptal flap for sinonasal reconstruction.
  • To highlight the nasoseptal flap's role in improving outcomes after endoscopic resection of sinonasal malignancies.
  • To discuss the nasoseptal flap's efficacy in anterior skull base reconstruction.

Main Methods:

  • Review of literature on the nasoseptal flap and its application in sinonasal surgery.
  • Discussion of the flap's anatomical pedicle and blood supply.
Keywords:
malignancynasoseptalreconstructionsinonasalskull basesphenopalatine

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  • Analysis of outcomes, particularly cerebrospinal fluid (CSF) leak rates.

    • Main Results:

    • The nasoseptal flap, originally the Hadad-Bassagasteguy flap, is a reliable mucoperichondrial flap.
    • It provides robust vascularization via the posterior septal artery for endonasal reconstruction.
    • Its use has decreased CSF leak rates from over 20% to less than 5%.

    Conclusions:

    • The nasoseptal flap is a transformative technique in endoscopic sinonasal surgery.
    • It is the workhorse for anterior skull base reconstruction due to ease of harvest, reliability, and low morbidity.
    • The flap has significantly improved patient outcomes by reducing major postoperative complications.