Supraorbital, Transorbital, and Endonasal Approaches to the Supraoptic Recess: A Comparative, Qualitative, and Quantitative Anatomic Study.

Background And Objectives: The supraoptic recess is a bony pyramid-shape area with a base that abuts the sphenoid sinus and an apex that corresponds intracranially to the anterior clinoid process and the body of the lesser sphenoid wing. During an extended endoscopic endonasal approach, the recess needs to be identified and delineated to achieve further lateral extension over the planum sphenoidale. By drilling the supraoptic recess in a medial-to-lateral direction toward the body of the lesser sphenoid wing, the most medial portion of the lesser wing overlying the orbit could be exposed and progressively drilled out.

Endoscopic 360° vision of the orbit: A comparative anatomical study of endonasal and transorbital approaches.

Background And Objective: Treatment of lesions located within and surrounding the orbit pose considerable surgical challenges, due to the presence of critical neurovascular structures in such deep, confined spaces. Historically, transcranial and craniofacial approaches have been widely used to deal with orbital pathologies. However, in recent decades we have witnessed the emergence of minimally invasive techniques to reduce morbidity and hospitalization times.

The meningo-orbital band from an endoscopic transorbital approach: an anatomical study.

Introduction: The meningo-orbital band (MOB) is an intricate dural structure extending between the periorbita, the frontal dura, and the temporal dura. The endoscopic transorbital approach (ETOA) provides a more thorough understanding of its anatomy.

Materials And Methods: Anatomical dissections were performed on 15 human head specimens (30 orbits) at the Laboratory of Surgical Neuroanatomy (LSNA) at the University of Barcelona.

Transorbital Transsylvian Selective Amygdalohippocampectomy: A Feasibility Anatomic Investigation.

Background And Objectives: Several surgical techniques have been developed to treat mesial temporal lobe epilepsy, the most common form of drug-resistant epilepsy. Although surgical treatment for mesial temporal lobe epilepsy has proven to be highly effective in controlling seizures and improving patients' quality of life, it carries potential risk to critical neurovascular structures, which can result in significant complications. With the advent of endoscopic techniques, the transorbital route has emerged as a potential alternative for mesial temporal lobe surgery.

Transorbital laser surgery for epilepsy: Anatomic-radiological feasibility of transorbital magnetic resonance imaging-guided laser interstitial thermal therapy (MRIgLITT) for amygdalohippocampectomy in refractory epilepsy.

Objective: to study the anatomical feasibility of laser fiber insertion for interstitial thermal therapy via transorbital approach to the temporo-mesial structures (amygdala-hippocampus-parahippocampus complex).

Methods: Anatomical dissections were performed bilaterally on two human cadaveric heads via a transorbital approach, in which screws and laser fibers were used for magnetic resonance imaging-guided laser interstitial thermal therapy (MRIgLITT) assisted by neuronavigation. In addition, eight transorbital trajectories were simulated using the transorbital entry points obtained from a cadaveric radiological study of four patients previously operated on for mesial temporal lobe epilepsy.

The Endoscopic Transorbital Approach for Vascular Surgery: An Anterior Circulation Anatomic Study, 2-Dimensional Operative Video.

Background And Objectives: Minimally invasive endoscopic approaches in cranial base surgery have been developing in the past decades. The transorbital (TO) route is one promising alternative, yet its adequacy for intracranial vascular lesions remains unclear. The present anatomic work aimed to test the feasibility and to provide a qualitative description of the endoscopic TO approach for the anterior circulation, namely the internal carotid artery and the middle cerebral artery.

Endoscopic transorbital approach to the petrous apex: is orbital rim removal worthwhile for the exposure? An anatomical study with illustrative case.

Objective: The endoscopic transorbital approach (ETOA) has been demonstrated to be a feasible ventral route to the petrous apex. Yet, it has been pointed to as a deep and narrow corridor for anterior petrosectomy; particularly, medialization of the instruments can become an issue when targeting the petroclival area. To overcome this limitation, an ETOA with orbital rim removal (ETOA-OR) has been suggested, but not de facto compared, with a transorbital approach without removal of the rim.

Transorbital approach to the cavernous sinus: an anatomical study of the related cranial nerves.

Background: The cavernous sinus (CS) is a demanding surgical territory, given its deep location and the involvement of multiple neurovascular structures. Subjected to recurrent discussion on the optimal surgical access, the endoscopic transorbital approach has been recently proposed as a feasible route for selected lesions in the lateral CS. Still, for this technique to safely evolve and consolidate, a comprehensive anatomical description of involved cranial nerves, dural ligaments, and arterial relations is needed.

The peritumoral brain zone in glioblastoma: where we are and where we are going.

Glioblastoma (GBM) is the most aggressive and invasive primary brain tumor. Current therapies are not curative, and patients' outcomes remain poor with an overall survival of 20.9 months after surgery.