Bruno Lourenço Costa

An international validation of the AO spine subaxial injury classification system

Brian A. Karamian, Gregory D. Schroeder, Mark J. Lambrechts, José A. Canseco et autres

PURPOSE: To validate the AO Spine Subaxial Injury Classification System with participants of various experience levels, subspecialties, and geographic regions. METHODS: A live webinar was organized in 2020 for validation of the AO Spine Subaxial Injury Classification System. The validation consisted of …

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Increasing awareness of degenerative cervical myelopathy: a preventative cause of non-traumatic spinal cord injury

Carl Moritz Zipser, Konstantinos Margetis, Karlo M. Pedro, Armin Curt et autres

Degenerative cervical myelopathy (DCM) is a common non-traumatic spinal cord disorder and characterized by progressive neurological impairment. Generally, it is still underdiagnosed and referral to spine specialists is often late, when patients already present with incomplete cervical spinal cord injury (SCI). To …

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Variation in global treatment for subaxial cervical spine isolated unilateral facet fractures

Brian A. Karamian, Gregory D. Schroeder, Martin Holas, Andrei Fernandes Joaquim et autres

PURPOSE: To determine the variation in the global treatment practices for subaxial unilateral cervical spine facet fractures based on surgeon experience, practice setting, and surgical subspecialty. METHODS: A survey was sent to 272 members of the AO Spine Subaxial Injury Classification System …

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Reproducibility of a new classification of the anterior clinoid process of the sphenoid bone

Feres Chaddad-Neto, Marcos Devanir Silva da Costa, Bruno Fernandes de Oliveira Santos, Ricardo Lourenço Caramanti et autres

Background: Pneumatization of the anterior clinoid process (ACP) affects paraclinoid region surgery, this anatomical variation occurs in 6.6–27.7% of individuals, making its preoperative recognition essential given the need for correction based on the anatomy of the pneumatized process. This study was conducted …

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Microsurgical Treatment of Ruptured Spetzler-Martin Grade 3 Right Hippocampal Arteriovenous Malformation: 3-Dimensional Operative Video

Kléber González Echeverría, Marcos Devanir Silva da Costa, Bruno Lourenço Costa, Robert Zanabria Ortiz et autres

We present a 14-yr-old male with a history of traumatic brain injury in March 2016, secondary to clonic tonic generalized seizures. CT scan showed hemorrhage at mesial temporal region in the body of right hippocampus, intraventricular hemorrhage at the level of lateral …

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Transtentorial Approach for Parahippocampal Gyrus Arteriovenous Malformation Resection: 3-Dimensional Operative Video

Feres Chaddad-Neto, Marcos Devanir Silva da Costa, Ricardo Lourenço Caramanti, Bruno Lourenço Costa et autres

Medial temporal basal arteriovenous malformations (AVMs) have complex anatomy. They usually drain to the basal vein of Rosenthal, and arterial feeders can arise from the anterior choroidal artery and its branches, or from the posterior cerebral artery. If the AVM is more …

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Microsurgical Clip Placement for a Giant Anterior Communicating Artery Aneurysm With Intraluminal Thrombus: 2-Dimensional Operative Video

Guilherme Salemi Riechelmann, Marcos Devanir Silva da Costa, Ricardo Lourenço Caramanti, Marcelo Augusto Acosta Goiri et autres

Giant brain aneurysms account for approximately 5% of all intracranial aneurysms. Although treatment modalities can vary widely, none is ideal for every patient. Endovascular treatment is usually preferred, especially when the large size of the aneurysm limits visualization of the brain parenchyma …

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Microsurgery for Upper Basilar Tip Aneurysm With Intraoperative Rupture: 3-Dimensional Operative Video

Oliver Soto Granados, Marcos Devanir Silva da Costa, Bruno Lourenço Costa, Kléber González-Echeverría et autres

In the last years, a shift from the microsurgical treatment to an endovascular therapy in patients with basilar apex aneurysm has been settled, part of this phenomenon is related to the significant tendency of vital perforators to be involved in the aneurysm …

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Intracranial Dural Arteriovenous Fistula: 2-Dimensional Operative Video

Helbert de Oliveira Manduca Palmiero, Bruno Lourenço Costa, Ricardo Lourenço Caramanti, Marcos Devanir Silva da Costa et autres

A dural arteriovenous fistula (DAVF) is an uncommon vascular malformation that has a direct dural arterial supply to a venous sinus.1,2 A DAVF is acquired after trauma and thrombosis,2 and is most common in elderly women.3 The principal location of a DAVF …

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Analysis of Olig2 and YKL-40 expression: a clinicopathological/immunohistochemical study for the distinction between subventricular zone II and III glioblastomas

Kelvin Manuel Pińa Batista, Bruno Lourenço Costa, Isabel Cuervo-Arango Herreros, Ivan Fernández‐Vega et autres

Glioblastomas (GBs) are the most common and lethal primary brain tumors in the adults. Glioblastomas originates either from astrocytes that have accumulated mutations and de-differentiated or from neural stem cells within the subventricular zone (SVZ) in close contact with the vasculature. Recently, …

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Stroke and Neurosurgery: New insights into two unrecognized entities

Bruno Lourenço Costa

Dural sinus thrombosis in pediatric age

Filipe Mira Ferreira, Bruno Lourenço Costa, Antônio Leojairo Campos Mendes, Catarina Paiva et autres

Dural sinus thrombosis is a rare condition, usually results from a late complication of an infection of the paranasal sinuses. The signs and symptoms are extremely varied and nonspecific, being the diagnosis made through magnetic resonance imaging. Ten-year-old male patient that was …

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