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Creation of a microsurgical neuroanatomy laboratory and virtual operating room: a preliminary study

Gökberk Erol, Abuzer Güngör, Umut Tan Sevgi, Beste Gülsuna, Yücel Doğruel, Hakan Emmez, and Uğur Türe

C adaver-based education has traditionally played a crucial role in developing a comprehensive visuospatial understanding of neuroanatomy. 1 However, the lack of and the difficulty in obtaining cadavers because of economic, ethical, and legal issues have made it necessary to turn to alternative education models. In the last 2 decades, three-dimensional (3D) modeling, augmented reality (AR), virtual reality (VR), and mixed reality technologies have emerged as essential tools in this context. 2 Especially during the coronavirus disease 2019 (COVID-19

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Humphrey Ridley (1653–1708): 17th century evolution in neuroanatomy and selective cerebrovascular injections for cadaver dissection

Jai Deep Thakur, Ashish Sonig, Prashant Chittiboina, Imad Saeed Khan, Rishi Wadhwa, and Anil Nanda

I n the modern microneurosurgical era, cadaveric dissection holds an important position for aspiring and practicing neurosurgeons, not only to improve the understanding of the surgical anatomy but also as a tool of advancing neurosurgical operative techniques. Professors Yaşargil 25 and Rhoton 15 led the evolution in the understanding of the surgical neuroanatomy in the late 20th century. Although the use of selective colored cerebrovascular injections in cadaver dissections has recently become a routine practice to enhance the cerebral vasculature, it

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Neuroanatomy and cadaver dissection in Italy: history, medicolegal issues, and neurosurgical perspectives

Historical vignette

Paola Frati, Alessandro Frati, Maurizio Salvati, Silvia Marinozzi, Riccardo Frati, Luciana Rita Angeletti, Manolo Piccirilli, Eugenio Gaudio, and Roberto Delfini

neuroanatomy, as summarized in Table 2 and represented in Figs. 1 to 3 . 6 , 27 , 32 , 34 , 39 , 42–44 , 46 TABLE 2 Main contributions of Italian scientists to neuroanatomy Place & Year Name & Scientific Publication/Achievement Main Contribution Bologna, 1316 Mondino dè Luzzi, first authorized dissection on a human cadaver established an accurate technique to dissect the cadaver; considered one of the fathers of modern anatomy Florence, 1490 Leonardo da Vinci, drawings of the human body provided us w/ an important

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Jean Baptiste Paulin Trolard (1842–1910): his life and contributions to neuroanatomy

Historical vignette

Marios Loukas, Misha Shea, Cory Shea, Martine Lutter-Hoppenheim, Paula Zand, R. Shane Tubbs, and Aaron A. Cohen-Gadol

A ll neurosurgeons are familiar with the eponymous use of the name Trolard in describing the anastomotic vein (superior anastomotic vein) on the lateral surface of the cerebral cortex that unites the superior sagittal sinus and the superficial sylvian vein. However, the many other contributions of the man for which this vein is named are largely unknown to the medical community. Trolard was a pivotal figure not only because of his multiple contributions to the field of neuroanatomy, but also because of his involvement in environmental and public health

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Central quadrantotomy for intractable childhood epilepsy: operative technique and functional neuroanatomy

Giulia Cossu, Viviana Aureli, Eliane Roulet-Perez, Cynthia Thomas, Jeffery S. Marston, Etienne Pralong, Mahmoud Messerer, Pablo González-López, and Roy T. Daniel

anterior aspect at the level of the anterior sylvian point. Somatosensory evoked potential responses were used to identify the central sulcus, further confirmed by monopolar stimulation of the precentral gyrus. Scalp EEG recordings were continuously monitored during surgery from ipsilateral anterior frontal and occipital electrodes, in addition to contralateral multilobar electrodes. In addition, ECoG was performed over the exposed cortices prior to and after completion of disconnection. Disconnection Procedure and Functional Neuroanatomy Fronto

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Mixed reality compared to the traditional ex cathedra format for neuroanatomy learning: the value of a three-dimensional virtual environment to better understand the real world

Abiram Sandralegar, Florian Bernard, Samuel Khatchatourov, Insa Janssen, Karl Schaller, Philippe Bijlenga, and Julien Haemmerli

N euroanatomy learning and teaching are challenging, especially because of the singular three-dimensional (3D) complexity of cerebral structures and their relations to adjacent anatomy. 1 – 4 The 3D spatial representation is, however, fundamental for students or residents aiming to understand the surgical neuroanatomy. 5 – 7 Traditional instruction through ex cathedra lectures and/or cadaveric laboratory sessions presents limitations in terms of visual representation, comprehension, and immersion for students acquiring knowledge in neuroanatomy. 8

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Hubert von Luschka (1820–1875): his life, discoveries, and contributions to our understanding of the nervous system

Historical vignette

R. Shane Tubbs, Payman Vahedi, Marios Loukas, Mohammadali M. Shoja, and Aaron A. Cohen-Gadol

tumor. 11 Contributions to Neuroanatomy Most known in neurosurgery is the foramen of Luschka or lateral aperture of the fourth ventricle ( Fig. 3 ). In 1855, in his Die Adergeflechte des menschlichen Gehirns (The Choroid Plexus of the Brain) 6 he confirmed that the foramen of Magendie existed and then described a lateral outlet of the fourth ventricle. 13 He stated On either side, the outer angles of the fourth ventricle assume the form of a gutter leading outside, whereby the latter portion of the choroid plexus passes outside of the fourth ventricle

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Heuristic map of myotomal innervation in humans using direct intraoperative nerve root stimulation

Clinical article

Clemens M. Schirmer, Jay L. Shils, Jeffrey E. Arle, G. Rees Cosgrove, Peter K. Dempsey, Edward Tarlov, Stephan Kim, Christopher J. Martin, Carl Feltz, Marina Moul, and Subu Magge

sample size might be challenging to perform. Conclusions We present the largest data set of direct intraoperative nerve root stimulations during decompressive surgery to demonstrate the relative contribution of root-level motor input to various muscle groups. Compared with the classic neuroanatomy, a significant number of roots innervate a broader range of muscles than expected, which may account for the variability of presentation between patients with identical number and location of compressed roots. Clinicians should consider this variability when evaluating

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Virtual and stereoscopic anatomy: when virtual reality meets medical education

Jose Weber Vieira de Faria, Manoel Jacobsen Teixeira, Leonardo de Moura Sousa Júnior, Jose Pinhata Otoch, and Eberval Gadelha Figueiredo

nonlinear format provides interactivity. However, most medical educators are not familiar with these methods. Studies published between 2000 and 2006 applied this technology, often coupled with robotic microscopes. 5 , 6 , 18 , 20 , 54 Nonetheless, their pedagogic efficacy remains controversial. In this study, the authors used an interactive, photorealistic, and stereoscopic method for teaching neuroanatomy, a concept whose rationale was first described by Henn and coworkers. 20 Additionally, a pedagogic evaluation was performed to demonstrate the educational benefits

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Galen's anecdote of the fallen sophist: on the certainty of science through anatomy

Issam A. Awad

anatomist on neurological concepts. 14, 18, 22 In fact, Galen's concepts on spinal and peripheral neuroanatomy would remain essentially unaltered until the 18th century, when Francois Pourfour du Petit demonstrated by dissection and by experiment on animals that the sympathetic trunks do not arise from the fifth and sixth cranial nerves as stated by Galen, followed by the much later work by Bell and by Magendie in the 19th century, which further advanced concepts about the functions of the ventral and dorsal spinal roots that were not clearly delineated by Galen. 6