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Related Experiment Video

Updated: Nov 13, 2025

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
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Endonasal Odontoidectomy in Basilar Invagination.

Juan A Simal-Julián1, Pablo Miranda-Lloret1, Maria R Sanchis-Martín2

  • 1Neurosurgery Service, Hospital Universitari i Politècnic La Fe Valencia, Valencia, Spain.

Journal of Neurological Surgery. Part B, Skull Base
|March 15, 2021
PubMed
Summary

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Journal of neurological surgery reports·2025

Endoscopic endonasal odontoidectomy (EEO) offers a minimally invasive surgical option for basilar invagination (BI), demonstrating rapid neurological recovery. This technique provides advantages over traditional transoral approaches for treating BI.

Area of Science:

  • Neurosurgery
  • Minimally Invasive Surgery

Background:

  • Basilar invagination (BI) can cause significant neurological deficits.
  • Conventional transoral odontoidectomy carries risks such as infection and velopalatal insufficiency.

Purpose of the Study:

  • To describe the technical aspects, advantages, and disadvantages of endoscopic endonasal odontoidectomy (EEO) for basilar invagination (BI).
  • To present a case study demonstrating the efficacy of EEO in a patient with BI.

Main Methods:

  • EEO procedure detailed using audiovisual material.
  • Case presentation of a 61-year-old male patient with BI undergoing EEO after suboccipital decompression and occipitocervical fusion.

Main Results:

  • Successful EEO performed in a patient with persistent anterior compression after initial surgery.
Keywords:
basilar invaginationendonasalendoscopeodontoidectomytransnasal

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  • Uneventful postoperative recovery with rapid improvement of preoperative neurological deficits.

    • Conclusions:

    • EEO offers significant anatomic and technical advantages over the transoral approach for BI.
    • The technique allows complete odontoid resection, avoids oral contamination, and minimizes risks like velopalatal insufficiency.