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Anterior Skull Base

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https://www.readbyqxmd.com/read/28524132/-choosing-an-anterior-midline-approach-to-skull-base-tumors
#1
D A Gol'bin, V A Cherekaev, A V Kozlov, A M Parshunina
The purpose of this review is to analyze used anterior midline approaches to the skull base, identify their advantages and disadvantages, and, after reviewing the literature data, submit a developed algorithm for choosing an optimal approach to the approval of colleagues. We provide brief information on approach techniques, indications and contraindications, and advantages and disadvantages as well as analyze international experience of using the discussed approaches. On the basis of literature data, we have developed a prototype algorithm for choosing an optimal approach to medial tumors of the anterior skull base...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28523088/treatment-of-a-large-traumatic-encephalocele-with-titanium-mesh
#2
Alan Motta do Canto, Manuela Monteiro Pinotti, Fernando Alves Maciel, Alexandre Bossi Todeschini, Guilherme Brasileiro Aguiar, Ronaldo Rodrigues de Freitas
Encephalocele is defined as protrusion of cranial contents beyond the normal confines of the skull. Although most encephalocele cases have a congenital etiology, fractures of the skull base can cause traumatic encephalocele. In most encephalocele cases, the bone defect presents reduced dimensions and the endoscopic treatment is generally performed to reconstruct the area using mucosal and/or fat grafts. This article sought to report on a rare case of traumatic encephalocele associated with an extensive defect of the anterior skull base...
June 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28513219/a-temporofrontal-fascia-flap-that-penetrated-temporal-muscle-for-the-reconstruction-of-an-anterior-skull-base-bone-and-dura-a-technical-case-report
#3
Makoto Katsuno, Koichi Uchida, Akira Matsuno
During skull base surgery, reconstruction of the dura is a very important procedure. Here, the use of a temporofrontal pedicled fascia flap tunnelled between temporal muscle fibres is described. This technique is easily performed and has a low postoperative morbidity, including skin and temporal muscle complications.
May 17, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28511365/morphological-and-morphometric-analysis-of-hypoglossal-canal-in-north-indian-dry-skulls-and-it-s-significance-in-cranial-base-surgeries
#4
Shalini Kumar, Ranjana Verma, Arpita Mahajan Rai, Raj D Mehra
INTRODUCTION: Hypoglossal Canal (HC) is a paired bony passage which is situated above the Occipital Condyle (OC) and transmits hypoglossal nerve and blood vessels. Studies on the osteotic variations of HC has been a field of considerable interest to research workers especially because of its clinical, radiological and surgical significance. AIM: The aim of the present study was to analyze the morphological and morphometric features of HC and its topographical relationship with OC...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28499903/utilization-of-paine-s-technique-projecting-puncture-point-to-the-skull-and-skin
#5
Hiroaki Matsuzaki, Tadahiro Otsuka, Ken Uekawa, Takashi Nakagawa, Nobuyuki Tsubota
OBJECTIVE: Ventriculostomy from Paine's point is an effective technique to obtain a slack brain for aneurysm surgery. This study aimed to use Paine's point for other neurosurgical procedures (except for those that require pterional approach) by delineation of surface landmarks for identification of Paine's point on the cranium and scalp. METHODS: Based on the anatomical knowledge and examination of 3D CT images of skull, we determined novel surface landmarks to identify Paine's point on cranium and scalp...
May 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28494465/congenital-salivary-gland-anlage-tumor-an-unusual-anterior-skull-base-mass-in-the-neonatal-period
#6
Jonathan E Martin, Belachew Tessema, Boulos Beshai, Fabiola Balarezo
Congenital salivary gland anlage tumor (SGAT) is a benign nasopharyngeal mass that presents with respiratory distress in infancy. Prior case reports have characterized SGAT as a lesion of the nasopharynx without intracranial extension. We report a unique case of SGAT extending through the anterior skull base and discuss the differential diagnosis and management of this unusual entity.
May 12, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28490402/international-frontal-sinus-anatomy-classification-and-anatomic-predictors-of-low-lying-anterior-ethmoidal-arteries
#7
Phayvanh P Sjogren, Rajendra Waghela, Shaelene Ashby, Richard H Wiggins, Richard R Orlandi, Jeremiah A Alt
BACKGROUND: The International Frontal Sinus Anatomy Classification (IFAC) was introduced to more accurately characterize ethmoid and frontal sinus pneumatization patterns. The prevalence of IFAC cells and their anatomic associations have not been described. OBJECTIVE: The goal was to examine the prevalence of IFAC cells and determine radiologic features associated with a low-lying anterior ethmoidal artery (LAEA). METHODS: Imaging of adult patients who underwent computed tomographies from January 2015 to March 2016 were retrospectively reviewed by using the IFAC classification...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28484528/extradural-anterior-clinoidectomy-technical-nuances-from-a-learner-s-perspective
#8
Shashwat Mishra, Baltazar Leão, Diego Mendez Rosito
BACKGROUND: Extradural removal of the anterior clinoid process (ACP) is a crucial step in the proper surgical exposure of various pathologies in and around the central skull base. Since the pioneering description by Dolenc, the technique of extradural clinoidectomy has undergone several refinements in the light of improved understanding of microsurgical anatomy and maturation of neurosurgical techniques. Mastery of the surgical nuances involved in performing this surgical exercise will allow the young neurosurgeon to execute this step without undue reluctance and trepidation...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28481397/endoscopic-endonasal-cerebrospinal-fluid-leak-repair-on-the-ventral-midline-skull-base-a-single-neurosurgical-center-experience
#9
Cihan Isler, Merdin Lyutviev Ahmedov, Mehmet Yigit Akgun, Baris Kucukyuruk, Nurperi Gazioglu, Galip Sanus, Necmettin Tanriover
AIM: The aim of this study was to present the results of endoscopic endonasal repair of ventral midline skull base cerebrospinal fluid (CSF) leak (VMSBL) at our institution and to discuss the technique and results from a neurosurgical perspective. MATERIAL AND METHODS: A retrospective analysis of all VMSBL cases that underwent endoscopic endonasal skull base approach (EESBA) for CSF leak repair at a single tertiary neurosurgical center was performed. Twenty six patients with an average age of 44...
March 25, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28465271/endoscopic-superior-ethmoidal-approach-for-anterior-cranial-base-resection-tailoring-the-approach-for-maximum-exposure-with-preservation-of-nasal-structures
#10
Maria Peris Celda, Tyler Kenning, Carlos D Pinheiro-Neto
OBJECTIVE: The traditional endoscopic anterior cranial base resection involves total removal of the ethmoidal cells including middle and superior turbinates. This is associated with increased volume of the nasal cavity postoperatively with more crusting and permanent change of the nasal airflow. The objective is to describe the step-by-step technique and feasibility of the superior ethmoidal approach for anterior cranial base resection with maximum exposure of the anterior cranial base maintaining the middle turbinates, uncinate processes and ostiomeatal complexes intact...
April 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28457276/nonsurgical-correction-using-miniscrew-assisted-vertical-control-of-a%C3%A2-severe-high-angle-with-mandibular-retrusion-and-gummy-smile-in-an-adult
#11
Xue-Dong Wang, Jie-Ni Zhang, Da-Wei Liu, Fei-Fei Lei, Wei-Tao Liu, Yang Song, Yan-Heng Zhou
Orthodontic treatment in adult patients with a skeletal discrepancy can be challenging. In this case report, we achieved both sagittal and vertical control by combining the classic sliding mechanics straight-wire technique with miniscrew anchorage. We treated a 21-year-old Chinese woman with a severe high mandibular plane angle, a retrusive chin, and a gummy smile. Her diagnosis included a skeletal Class II skull base with a mild anterior open bite, a protrusive maxilla, and a backwardly rotated mandible. This case underscores the importance of anchorage control in both the sagittal and vertical directions...
May 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28439688/erratum-to-endonasal-endoscopic-surgery-in-the-management-of-sinonasal-and-anterior-skull-base-malignancies
#12
Christopher R Roxbury, Masaru Ishii, Jeremy D Richmon, Ari M Blitz, Douglas D Reh, Gary L Gallia
No abstract text is available yet for this article.
April 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28439612/-imaging-of-the-paranasal-sinuses-and-anterior-skull-base
#13
S Greschus, F Albert, K W G Eichhorn
Due to the complex anatomy of the anterior skull base and paranasal sinuses, radiologic diagnostics in this area are challenging. Magnetic resonance imaging (MRI) and computed tomography (CT) are the primary indicated modalities. Guidelines helping to select the appropriate modality have been published by the German Society of Head and Neck Radiology and the Society of Otorhinolaryngology. The present article presents an overview of the current radiologic procedures and their optimized implementation using clinical examples...
April 21, 2017: HNO
https://www.readbyqxmd.com/read/28424012/internal-carotid-artery-agenesis-a-case-report-and-review-of-literature
#14
REVIEW
Shuo Li, Kusum Hooda, Nishant Gupta, Yogesh Kumar
Congenital agenesis of the internal carotid artery is a very rare anomaly. Intracranial circulation in the involved internal carotid artery territory is maintained by collateral circulation from the contralateral internal carotid artery through the anterior communicating artery and from the vertebrobasilar system through the posterior communicating artery. Usually, patients with internal carotid artery agenesis are asymptomatic due to collateral circulation, but they may present with headache, seizures, or transient ischemic attack...
April 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28418817/virtual-mapping-of-the-frontal-recess-guiding-safe-and-efficient-frontal-sinus-surgery
#15
Neil S Patel, Amy C Dearking, Erin K O'Brien, John F Pallanch
Objective To define relationships between the frontal sinus opening, ostia of other frontal recess cells, and endoscopic landmarks and to develop a clinically useful framework to guide frontal sinus surgery. Study Design Retrospective review. Setting Tertiary care academic referral center. Methods Adult patients with computed tomography (CT) without sinonasal pathology were included. Virtual endoscopy (using OsiriX) and corresponding CT reconstructions were used to identify all visible ostia in the frontal recess and characterize their positions in spaces between the uncinate/agger nasi (U), bulla ethmoidalis (EB), and middle turbinate (MT)...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28412879/quantitative-analysis-of-transnasal-anterior-skull-base-approach-report-of-technology-for-intraoperative-assessment-of-instrument-motion
#16
Angelique M Berens, Richard Alex Harbison, Yangming Li, Randall A Bly, Nava Aghdasi, Manuel Ferreira, Blake Hannaford, Kris S Moe
OBJECTIVE: To develop a method to measure intraoperative surgical instrument motion. This model will be applicable to the study of surgical instrument kinematics including surgical training, skill verification, and the development of surgical warning systems that detect aberrant instrument motion that may result in patient injury. DESIGN: We developed an algorithm to automate derivation of surgical instrument kinematics in an endoscopic endonasal skull base surgery model...
April 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28403097/predictive-factors-for-surgical-outcome-in-anterior-clinoidal-meningiomas-analysis-of-59-consecutive-surgically-treated-cases
#17
Ju-Hwi Kim, Woo-Youl Jang, Tae-Young Jung, In-Young Kim, Kyung-Hwa Lee, Woo Dae Kang, Seul-Kee Kim, Kyung-Sub Moon, Shin Jung
Despite the advances in the microsurgical technique and anatomical understanding of the anterior and middle skull base, anterior clinoidal meningiomas are still challenging lesions to resect completely and safely due to their intimate relationship with vital neurovascular structures. We report predictive factors for tumor recurrence and postoperative complications based on surgical outcome of patients with anterior clinoidal meningiomas treated at our institution.Fifty-nine consecutive patients with anterior clinoidal meningioma who were surgically treated between March, 1993, and July, 2015, were reviewed retrospectively...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28385583/endoscopic-endonasal-excision-of-nasal-chondromesenchymal-hamartoma-with-intracranial-extension
#18
M Nakaya, S Yoshihara, A Yoshitomi, S Baba
INTRODUCTION: Nasal chondromesenchymal hamartoma (NCMH) is an extremely rare benign hamartoma of the sinonasal tract, predominantly involving infants and young children. METHODS: We report the case of a 3-year-old boy of NCMH with extension to anterior skull base. RESULTS: The tumor was completely resected piece by piece via an endonasal endoscopic approach. There is no recurrence 3 years after operation. CONCLUSIONS: We reported the case of NCMH extending to skull base was successfully resected by endonasal endoscopic approach...
April 3, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28384240/supplementary-cranial-description-of-the-types-of-edmontosaurus-regalis-ornithischia-hadrosauridae-with-comments-on-the-phylogenetics-and-biogeography-of-hadrosaurinae
#19
Hai Xing, Jordan C Mallon, Margaret L Currie
The cranial anatomy of the flat-skulled hadrosaurine Edmontosaurus regalis (Ornithischia: Hadrosauridae) is extensively described here, based on the holotype and paratype collected from the middle part of the Horseshoe Canyon Formation in southern Alberta. Focus is given to previously undocumented features of ontogenetic and phylogenetic importance. This description facilitates overall osteological comparisons between E. regalis and other hadrosaurids (especially E. annectens), and revises the diagnosis of E...
2017: PloS One
https://www.readbyqxmd.com/read/28377283/the-combined-transpetrosal-approach-anatomic-study-and-literature-review
#20
REVIEW
M Burhan Janjua, James P Caruso, Jeffrey P Greenfield, Mark M Souweidane, Theodore H Schwartz
The combined petrosal approach is an essential technique for the skull base neurosurgeon. In this manuscript, the authors provide a brief history of the development of this approach, technical instruction with consideration of important landmarks, and a literature review of the broad range of clinical applications for this approach. The combined petrosal approach was performed bilaterally in 6 cadaveric injected specimens. The relationship of middle and posterior fossa dura, venous sinuses, cranial nerves (CNs), and the vascular anatomy were studied...
April 1, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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