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Updated: Jun 6, 2026
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Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
Published on: August 15, 2025
Navigation-assisted transoral endoscopic surgery for mandibular ramus-condyle tumours
1State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Summary
This study introduces a minimally invasive endoscopic surgery for mandibular tumors, reducing facial nerve injury risks. The navigation-assisted transoral approach proved effective and safe in preliminary patient cases.
Area of Science:
- Oral and Maxillofacial Surgery
- Surgical Oncology
- Minimally Invasive Surgery
Background:
- Tumors of the mandibular ascending ramus and condyle present challenges including facial asymmetry and pain.
- Conventional surgical methods involve external incisions, posing risks of facial nerve damage and scarring.
Purpose of the Study:
- To establish and assess a minimally invasive surgical approach for resecting mandibular ramus-condyle tumors.
- To utilize intraoperative navigation and endoscopic techniques for improved surgical outcomes.
Main Methods:
- Cadaveric dissection was performed to establish the transoral endoscopic approach and analyze anatomical structures.
- Nine patients with osteomas or osteochondromas underwent navigation-assisted transoral endoscopic tumor resection.
- Postoperative complications and functional preservation were evaluated.
Main Results:
- Successful resection of mandibular tumors was achieved in all nine patients.
- The transoral endoscopic approach demonstrated a low incidence of postoperative complications.
- Satisfactory preservation of mandibular morphology and function was observed.
Conclusions:
- Navigation-assisted transoral endoscopic surgery is a feasible and effective preliminary approach for mandibular ramus-condyle tumors.
- Further studies with larger cohorts are needed to confirm surgical accuracy and navigation system performance.