BACKGROUND: Clipping of ophthalmic artery (OA) aneurysms present one of the treatment strategies for long-term disease management. Existing surgical techniques primarily require extra/intradural removal of the anterior clinoid process, carrying a higher risk of infection, damage to surrounding structures or technical complications. METHODS: We present the technique of minimally invasive partial medial clinoidectomy with the unroofing of the optic canal for surgical clipping of OA aneurysms, and besides its pros and cons, we also discuss proper technical indications. CONCLUSION: The partial medial clinoidectomy improves manoeuvrability around the paraclinoid region, provides better protection for adjacent structures and renders excellent treatment outcome.

Department of Neurosurgery 2nd Faculty of Medicine Charles University Prague and Motol University Hospital Prague Czech Republic

Department of Neurosurgery and Neurooncology 1st Faculty of Medicine Charles University Prague and Military University Hospital U Vojenské Nemocnice 1200 169 02 Prague 6 Czech Republic

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