Trans-sinusal frontal approach for olfactory groove meningiomas

Area of Science:

• Neurosurgery
• Skull Base Surgery
• Oncology

Background:

• Olfactory groove meningiomas are tumors located at the base of the skull.
• Surgical removal is the primary treatment, often requiring complex approaches.
• Minimally invasive techniques are sought to reduce morbidity and improve outcomes.

Purpose of the Study:

• To evaluate the efficacy and safety of the trans-sinusal frontal approach for olfactory groove meningioma resection.
• To assess the surgical outcomes, including neurologic recovery and cosmetic results.

Main Methods:

• Six patients with olfactory groove meningiomas underwent surgery using the trans-sinusal frontal approach.
• This technique involved osteotomy of the frontal sinus and a subfrontal route.
• Image-guided surgery was utilized for precise delineation in cases with small frontal sinuses.

Main Results:

• All patients achieved good neurologic recovery, with intellectual and visual improvements noted.
• The approach allowed for tumor removal without significant brain retraction or vascular dissection.
• Excellent cosmetic outcomes were achieved, with no visible scars or burr holes.

Conclusions:

• The trans-sinusal frontal approach is a technically easy, safe, and effective alternative to conventional craniotomies for olfactory groove meningiomas.
• It provides excellent access to the anterior skull base with superior cosmetic results and good patient recovery.