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Microsurgical Anatomy

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https://www.readbyqxmd.com/read/29148902/microsurgical-anatomy-and-approaches-around-the-lateral-recess-with-special-reference-to-entry-into-the-pons
#1
Osamu Akiyama, Ken Matsushima, Maximiliano Nunez, Satoshi Matsuo, Akihide Kondo, Hajime Arai, Albert L Rhoton, Toshio Matsushima
OBJECTIVE The lateral recess is a unique structure communicating between the ventricle and cistern, which is exposed when treating lesions involving the fourth ventricle and the brainstem with surgical approaches such as the transcerebellomedullary fissure approach. In this study, the authors examined the microsurgical anatomy around the lateral recess, including the fiber tracts, and analyzed their findings with respect to surgical exposure of the lateral recess and entry into the lower pons. METHODS Ten cadaveric heads were examined with microsurgical techniques, and 2 heads were examined with fiber dissection to clarify the anatomy between the lateral recess and adjacent structures...
November 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29068930/lymphatic-territories-lymphosomes-in-the-rat-an-anatomical-study-for-future-lymphatic-research
#2
Hiroo Suami, Mario F Scaglioni
BACKGROUND: Understanding the precise anatomy in experimental animals is crucial for correct design of research projects. Rats are commonly used for scientific research in plastic surgery because of their availability in academic institutions, moderate cost, and sizable vessels for microsurgical procedures. In past publications about rat anatomy, lymphatic mapping has been limited and incomplete. The aim of this study was to comprehensively map the superficial lymphatic system in the rat...
November 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29053071/prevention-of-postoperative-visual-field-defect-after-the-occipital-transtentorial-approach-anatomical-study
#3
Satoshi Matsuo, Serhat Baydin, Abuzer Güngör, Erik H Middlebrooks, Noritaka Komune, Koji Iihara, Albert L Rhoton
OBJECTIVE A postoperative visual field defect resulting from damage to the occipital lobe during surgery is a unique complication of the occipital transtentorial approach. Though the association between patient position and this complication is well investigated, preventing the complication remains a challenge. To define the area of the occipital lobe in which retraction is least harmful, the surface anatomy of the brain, course of the optic radiations, and microsurgical anatomy of the occipital transtentorial approach were examined...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28985669/establishment-of-next-generation-neurosurgery-research-and-training-laboratory-with-integrated-human-performance-monitoring
#4
Antonio Bernardo
Quality of neurosurgical care and patient outcomes are inextricably linked to surgical and technical proficiency and a thorough working knowledge of microsurgical anatomy. Neurosurgical laboratory-based cadaveric training is essential for the development and refinement of technical skills before their use on a living patient. Recent biotechnological advances including 3-dimensional (3D) microscopy and endoscopy, 3D printing, virtual reality, surgical simulation, surgical robotics, and advanced neuroimaging have proved to reduce the learning curve, improve conceptual understanding of complex anatomy, and enhance visuospatial skills in neurosurgical training...
October 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28973523/endoscopic-approach-of-the-insula-through-the-anterior-middle-temporal-gyrus-a-feasibility-study-in-the-laboratory
#5
Francesco Corrivetti, Sébastien Froelich, Emmanuel Mandonnet
BACKGROUND: Insular glioma surgery still represents a challenge. Nonetheless, advances in microsurgical anatomy and brain mapping techniques have allowed an increase in the extent of resection with acceptable morbidity rates. Transsylvian and transcortical approaches constitute the main surgical corridors, the latter providing considerable advantages and a high degree of reliability. Nevertheless, both surgical corridors yield remarkable difficulties in reaching the most posterior insular region...
July 25, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28973522/variations-of-occipital-artery-posterior-inferior-cerebellar-artery-bypass-anatomic-consideration
#6
Ken Matsushima, Satoshi Matsuo, Noritaka Komune, Michihiro Kohno, J Richard Lister
BACKGROUND: Advances in diagnosis of posterior inferior cerebellar artery (PICA) aneurysms have revealed the high frequency of distal and/or dissecting PICA aneurysms. Surgical treatment of such aneurysms often requires revascularization of the PICA including but not limited to its caudal loop. OBJECTIVE: To examine the microsurgical anatomy involved in occipital artery (OA)-PICA anastomosis at various anatomic segments of the PICA. METHODS: Twenty-eight PICAs in 15 cadaveric heads were examined with the operating microscope to take morphometric measurements and explore the specific anatomy of bypass procedures...
July 7, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28958929/effectiveness-of-the-3d-monitor-system-for-medical-education-during-neurosurgical-operation
#7
Masahiko Wanibuchi, Katsuya Komatsu, Yukinori Akiyama, Takeshi Mikami, Nobuhiro Mikuni
BACKGROUND: Three-dimensional (3D) graphics are used in the medical field, especially during surgery. Although 3D monitoring is useful for medical education, its effectiveness needs to be objectively evaluated. The aim of this study was to investigate the efficacy of 3D monitoring in the surgical education of medical students. METHODS: A questionnaire on high-definition 3D monitoring was given to fifth-year medical students in a six-year program. Sixty-four students wore polarized glasses and observed a microsurgical operation through a 3D monitor...
September 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28945853/dr-albert-l-rhoton-jr-s-time-at-the-mayo-clinic-the-beginnings-of-a-remarkable-career
#8
Tarek Rayan, Matthew L Carlson, David G Piepgras, Michael J Link, Jamie J Van Gompel
Dr Albert L. Rhoton Jr became the focal point of neurosurgery's evolution in understanding the intricate and complex microanatomy of the human brain over the last 4 decades. His pioneering work on cadaveric specimens proved to be a pivotal endeavor in the pursuit to better understand the complex microsurgical anatomy of cranial surgery. This paper details his early career at the Mayo Clinic in Rochester, Minnesota. A comprehensive review and synthesis of data acquired from the institutional historical archives including the Annual Reports to the Executive Committee, the Reports to the Board of Directors, the MAYOVOX Newsletter, the illustration archives of the Mayo Clinic Division of Creative Media, staff biographies, curriculum vitae, personal interviews, as well as full-text journal articles, and book publications was performed...
August 9, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28931254/cavernomas-and-arteriovenous-malformations-in-the-mesial-temporal-region-microsurgical-anatomy-and-approaches
#9
Alvaro Campero, Pablo Ajler, Carlos Rica, Albert Rhoton
BACKGROUND: The mesial temporal region (MTR) is located deep in the temporal lobe and it is surrounded by important vascular and nervous structures that should be preserved during surgery. OBJECTIVE: To describe microsurgical anatomy and approaches to the MTR in relation to cavernomas and arteriovenous malformations (AVMs). METHODS: Five formalin-fixed and red silicone-embedded heads of adult cadavers were used for this study. Between January 2003 and June 2014, 7 patients with cavernomas and 6 patients with AVMs in the MTR underwent surgery...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927223/microsurgical-anatomy-and-the-effects-of-gravity-retraction-with-the-supracerebellar-infratentorial-approach-two-companion-cases-3-dimensional-operative-video
#10
Omar Choudhri, Michael T Lawton
No abstract text is available yet for this article.
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922882/microsurgical-anatomy-of-the-interfascial-vein-its-significance-in-the-interfascial-dissection-of-the-pterional-approach
#11
Alvaro Campero, Pablo Ajler, Martín Paíz, Ramiro López Elizalde
BACKGROUND: The pterional approach (PA), together with its variants, is still one of the most common methods used by surgeons to reach the anterior and middle cranial base. A highly important technical detail during a PA is the preservation of the frontotemporal branch of the facial nerve, which can be achieved through an interfascial dissection. OBJECTIVE: To describe the anatomy of the interfascial vein (IFV), highlighting its recognition as a significant anatomic reference to perform an interfascial dissection (IFD)...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28919562/operative-management-of-distal-anterior-cerebral-artery-aneurysms-through-a-mini-anterior-interhemispheric-approach
#12
Alejandro Monroy, Edgar Nathal, Albert L Rhoton
BACKGROUND: Distal anterior cerebral artery (DACA) aneurysms, also referred to as pericallosal artery aneurysms, are present in 1.5 to 9% of all intracranial aneurysms. This study aims to describe the importance of the microsurgical anatomy of the DACA and demonstrate the surgical nuances for handling DACA aneurysms, with a minimally invasive surgical technique METHODS: We retrospectively and descriptively analyzed a series of aneurysm cases performed at the National Institute of Neurology and Neurosurgery-Mexico City...
September 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28879904/a-neurosurgical-perspective-to-approaches-to-the-orbit-a-cadaveric-study
#13
S Balaji Pai, M N Nagarjun
Neurosurgeons are getting increasingly involved in surgery for orbital tumours. The various approaches to the orbit can be challenging. The authors have demonstrated on cadavers the various approaches to the orbit which are required to be mastered by the neurosurgeon. The superior approaches which include the transcranial, supraorbital and the hybrid approaches are the most commonly utilized surgical approaches by the neurosurgeon for excision of orbital pathologies. The lateral orbitotomy is an elegant approach for excision of the tumours lateral to the optic Nerve and lacrimal gland tumours...
September 2017: Neurology India
https://www.readbyqxmd.com/read/28879421/the-history-of-rhoton-s-lab
#14
REVIEW
Toshio Matsushima, J Richard Lister, Ken Matsushima, Evandro de Oliveira, Erdener Timurkaynak, David A Peace, Shigeaki Kobayashi
The work performed in Dr. Rhoton's Lab, represented by over 500 publications on microneurosurgical anatomy, greatly contributed to improving the level of neurosurgical treatment throughout the world. The authors reviewed the development and activities of the Lab over 40 years. Dr. Albert L. Rhoton Jr., the founder of, and leader in, this field, displayed great creativity and ingenuity during his life. He devoted himself to perfecting his study methodology, employing high-definition photos and slides to enhance the quality of his published papers...
September 6, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28868200/the-open-access-video-collection-project-hernesniemi-s-1001-and-more-microsurgical-videos-of-neurosurgery-a-legacy-for-educational-purposes
#15
Joham Choque-Velasquez, Danil A Kozyrev, Roberto Colasanti, Peeraphong Thiarawat, Patcharin Intarakhao, Behnam Rezai Jahromi, Juha Hernesniemi
BACKGROUND: Neurosurgical educational programs and courses are helpful to improve the quality of training. Moreover, nowadays, online activities may represent a very useful tool to globally enhance neurosurgical education. The "Hernesniemi's 1001 and more microneurosurgical videos" project aims to show the microsurgical style developed by the senior author and his TEAMs in more than 40 years of experience. METHODS: More than 1100 high-definition videos of microneurosurgical operations performed by the senior author were carefully edited...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28843754/thoracic-intradural-extramedullary-epidermoid-tumor-the-relevance-for-resection-of-classical-subarachnoid-space-microsurgical-anatomy-in-modern-spinal-surgery-technical-note-and-review-of-the-literature
#16
Giuseppe Mv Barbagallo, Massimiliano Maione, Giuseppe Raudino, Francesco Certo
BACKGROUND: Intradural epidermoid tumors of the spinal cord are commonly associated with spinal cord dysraphism or invasive procedures. We report the particular relationships between spinal subarachnoid compartments and a thoracic intradural-extramedullary epidermoid tumor, highlighting the relevant anatomical changes, which may influence microsurgery. METHODS: A 40 year old woman suffering from compressive myelopathy due to a thoracic epidermoid tumor extending from T3 to T4, and not associated with spina bifida, trauma, previous surgery or lumbar spinal puncture, underwent microsurgical excision...
August 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28835986/-complex-vulvar-reconstruction-following-female-genital-mutilation-cutting
#17
REVIEW
D M O'Dey
BACKGROUND: Female genital mutilation/cutting (FGM/C) is a worldwide problem affecting millions of women and is especially common in Africa and Arabia. Women suffer from serious physical and psychological problems. Anatomic reconstruction, therefore, is an important and life-changing option for many affected women. OBJECTIVES: This work gives a short overview of specialized techniques invented by the author for functional and aesthetic vulvar reconstruction following FGM/C...
October 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28821987/morphological-anatomy-of-thoracolumbar-nerve-roots-and-dorsal-root-ganglia
#18
Lina Leng, Li Liu, Daowen Si
The aim of this study is to ascertain the anatomic parameters of the spinal roots and dorsal root ganglia and to demonstrate their clinical significance. Samples from 24 adult autopsy subjects were obtained from roots and dorsal root ganglia at levels L1 through L5. The anatomic parameters of epidural nerve roots: the distance between the epidural nerve roots and the proximal edge of the dorsal root ganglia and the average diameter of the nerve root gradually, increased from L1 to L5. The midline nerve root angle gradually decreased from L1 to L5...
August 18, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28799880/a-morphometric-survey-of-the-parasellar-region-in-more-than-2700-skulls-emphasis-on-the-middle-clinoid-process-variants-and-implications-in-endoscopic-and-microsurgical-approaches
#19
Akshay Sharma, Gabrielle E Rieth, Joseph E Tanenbaum, James S Williams, Nakao Ota, Srikant Chakravarthi, Sunil Manjila, Amin Kassam, Bulent Yapicilar
OBJECTIVE The middle clinoid process (MCP) is a bony projection that extends from the sphenoid bone near the lateral margin of the sella turcica. The varied prevalence and morphological features of the MCP in populations stratified by age, race, and sex are unknown; however, the knowledge of its anatomy and preoperative recognition on CT scans can aid greatly in complication avoidance and management. The aim of this study was to further illustrate the surgical anatomy of the parasellar region and to quantify the incidence of MCP and caroticoclinoid rings (CCRs) in dried preserved human anatomical specimens...
August 11, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28770484/high-resolution-mr-lymphangiography-for-planning-lymphaticovenous-anastomosis-treatment-a-single-centre-experience
#20
Maria Antonietta Mazzei, Francesco Gentili, Francesco Giuseppe Mazzei, Paolo Gennaro, Duccio Guerrieri, Andrea Nigri, Guido Gabriele, Elisabetta Weber, Alfonso Fausto, Giuseppe Botta, Luca Volterrani
PURPOSE: This article illustrates the feasibility of MR lymphangiography (MRL) for imaging lymphatic vessels in patients with lymphedema, its accuracy in distinguishing lymphatic vessels from veins, and its utility for planning Lymphaticovenous anastomosis (LVA) treatment. MATERIALS AND METHODS: We prospectively enrolled 30 patients (24 women, range 18-70, 17 cases of lower limb lymphedema, 6 cases of primary lymphedema). All the patients underwent MRL, using a 1...
August 2, 2017: La Radiologia Medica
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