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Minimally Invasive Unilateral Supraorbital Approach for Large and Giant Olfactory Groove Meningiomas
Murat Büyüktepe1, Ümit Karadağoğlu1, Necdet Eyüp Bölükbaşi1
1Department of Neurosurgery, Ankara University Faculty of Medicine, Ankara, Turkey.
World Neurosurgery
|August 11, 2026
Summary
The unilateral supraorbital mini-craniotomy is a safe and effective minimally invasive technique for treating large olfactory groove meningiomas. This approach offers high resection rates, low complications, and excellent cosmetic results.
Area of Science:
- Neurosurgery
- Oncology
Background:
- Olfactory groove meningiomas are tumors that can cause significant neurological deficits.
- Surgical resection is the primary treatment, but approaches can lead to morbidity.
Purpose of the Study:
- To evaluate the efficacy and safety of the unilateral supraorbital mini-craniotomy for large and giant olfactory groove meningiomas.
- To assess surgical outcomes, complications, functional results, and cosmetic success.
Main Methods:
- Retrospective analysis of 20 patients undergoing unilateral supraorbital mini-craniotomy.
- Evaluation of preoperative characteristics, surgical technique, resection grades, complications, and functional/cosmetic outcomes.
Main Results:
- High resection rates (Simpson Grade 1-2 in 18 patients).
- Low complication rate (5%), with SIADH as the only significant complication.
- Favorable cosmetic outcomes and preserved olfactory function in most patients.
Conclusions:
- Unilateral supraorbital mini-craniotomy is a safe, effective, and minimally invasive option for large olfactory groove meningiomas.
- Advantages include high resection rates, low morbidity, and good cosmetic results.
- Further prospective studies are needed for long-term evaluation.
