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https://www.readbyqxmd.com/read/29340754/preoperative-evaluation-of-cochlear-implantation-through-the-round-window-membrane-in-the-facial-recess-using-high-resolution-computed-tomography
#1
Li-Hong Xie, Jie Tang, Wen-Jie Miao, Xiang-Long Tang, Heng Li, An-Zhou Tang
PURPOSE: We evaluated the risk of cochlear implantation through the round window membrane in the facial recess through a preoperative analysis of the angle between the facial nerve-round window and the cranial midline using high-resolution temporal bone CT. METHODS: Temporal bone CT films of 176 patients with profound sensorineural hearing loss at our hospital from 2013 to 2015 were reviewed. The preoperative temporal bone CT scans of the patients were retrospectively analysed...
January 16, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29340238/a-revised-cranial-description-of-massospondylus-carinatus-owen-dinosauria-sauropodomorpha-based-on-computed-tomographic-scans-and-a-review-of-cranial-characters-for-basal-sauropodomorpha
#2
Kimberley E J Chapelle, Jonah N Choiniere
Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT) methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M...
2018: PeerJ
https://www.readbyqxmd.com/read/29340062/correlation-of-psychooncological-distress-screening-and-quality-of-life-assessment-in-neurosurgical-patients
#3
Kira Hoffmann, Marcel Kamp, Hans-Jakob Steiger, Michael Sabel, Marion Rapp
Background: Cerebral tumors are associated with high rates of anxiety, depression and reduced health related quality of life. But still psychooncological screening instruments are not implemented in the daily routine of neurosurgical departments. In contrast the EORTC QLQ-C30/ EORTC QLQ- BN20 questionnaire is often used to evaluate quality of life in the framework of clinical studies. We were therefore interested, if conspicuous distress screening results are also reflected by HRQOL assessment...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#4
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECT: Skull base meningiomas carry a non-negligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (WHO grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339321/internal-thoracic-artery-to-middle-cerebral-artery-bypass-surgery-cadaveric-feasibility-study
#5
Stephen Monteith, Oded Goren, Ragu Sampath, Eric Lehr, Akshal Patel, Paul J Choi, Joe Iwanaga, Marios Loukas, R Shane Tubbs
BACKGROUND: A few options of extracranial donor vessels exist for utilization in intracranial vascular bypass procedures. To our knowledge, the use of an internal thoracic artery for cerebral revascularization has not been studied previously. Hence, this cadaveric feasibility study was performed. METHODS: The internal thoracic artery was dissected in five adult cadaveric specimens. The proximal diameter, distal diameter, and the length of the vessel were measured and recorded...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339001/does-the-surgical-approach-for-treating-mandibular-condylar-fractures-affect-the-rate-of-seventh-cranial-nerve-injuries-a-systematic-review-and-meta-analysis-based-on-a-new-classification-for-surgical-approaches
#6
Essam Ahmed Al-Moraissi, Aurélien Louvrier, Giacomo Colletti, Larry M Wolford, Federico Biglioli, Marwa Ragaey, Christophe Meyer, Edward Ellis
PURPOSE: The purpose of this study was to determine the rate of facial nerve injury (FNI) when performing (ORIF) of mandibular condylar fractures by different surgical approaches. MATERIALS AND METHODS: A systematic review and meta-analysis were performed that included several databases with specific keywords, a reference search, and a manual search for suitable articles. The inclusion criteria were all clinical trials, with the aim of assessing the rate of facial nerve injuries when (ORIF) of mandibular condylar fractures was performed using different surgical approaches...
November 14, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29338280/variable-skeletal-anatomical-features-of-acromegaly-in-the-skull-and-craniocervical-junction
#7
Maria Piagkou, Othon Manolakos, Theodore Troupis, Nikolaos Lazaridis, Konstantinos Laios, Alexandros Samolis, Konstantinos Natsis
OBJECTIVE: This study adds important information regarding the morphological alterations caused by growth hormone hypersecretion in the skull and craniocervical junction (CCJ). A variably asymmetric skull due to acromegaly coexists with expansion of the paranasal sinuses and multiple Wormian bones. CASE REPORT: A pathologically asymmetric dry skull of a European male, aged 38 years at death, with cranial vault and skull base thickening is described. The extensive paranasal sinus pneumatization caused a generalized thinning of the bony walls...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29337630/ethnic-differences-in-craniofacial-and-upper-spine-morphology-in-children-with-skeletal-class-ii-malocclusion
#8
Eunhye Oh, Sug-Joon Ahn, Liselotte Sonnesen
OBJECTIVES: To analyze differences in upper cervical spine and craniofacial morphology, including posterior cranial fossa and growth prediction signs, between Danish and South Korean pre-orthodontic skeletal Class II children and to analyze associations between upper cervical spine morphology and craniofacial characteristics. MATERIALS AND METHODS: One hundred forty-six skeletal Class II children-93 Danes (54 boys and 39 girls, mean age 12.2 years) and 53 Koreans (27 boys and 26 girls, mean age 10...
January 16, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29335798/3d-morphological-change-of-skull-base-and-fronto-temporal-soft-tissue-in-the-patients-with-unicoronal-craniosynostosis-after-fronto-orbital-advancement
#9
Bin Yang, Jian Ni, Binghang Li
PURPOSE: This study aims to comprehensively evaluate the deformation of the skull base and fronto-temporal soft tissue in the patients with anterior plagiocephaly over 1 year of age by three-dimensional (3D) imaging after fronto-orbital advancement (FOA). METHODS: We quantitatively analyzed the surgical results and outcome of FOA performed in 10 patients with anterior plagiocephaly. The measurements of the skull base and fronto-temporal soft tissue were performed based on 3D computed tomography (CT) scan...
January 15, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29334772/spontaneous-regression-of-a-large-skull-base-meningioma-case-report
#10
Ashwin Kumaria, Harshal A Ingale, Donald C Macarthur
We present the case of a 58 year old lady with a large middle cranial fossa meningioma (5 cm × 4 cm in maximal dimensions) which has considerably regressed without any treatment during seven years of follow up. While the tumour had remained radiologically static for the first three years, scans from year five post-diagnosis onwards have shown shrinkage of the meningioma from a calculated volume of 36 cm3 to 11.2 cm3. There has been no intratumoral haemorrhage or infarction and no medication or exogenous hormonal effect that could account for this effect...
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29333689/2d-black-phosphorus-reinforced-3d-printed-scaffolds-a-stepwise-countermeasure-for-osteosarcoma
#11
Bowen Yang, Junhui Yin, Yu Chen, Shanshan Pan, Heliang Yao, Youshui Gao, Jianlin Shi
With the ever-deeper understanding of nano-bio interactions and the development of fabrication methodologies of nanomaterials, various therapeutic platforms based on nanomaterials have been developed for next-generation oncological applications, such as osteosarcoma therapy. In this work, a black phosphorus (BP) reinforced 3D-printed scaffold is designed and prepared to provide a feasible countermeasure for the efficient localized treatment of osteosarcoma. The in situ phosphorus-driven, calcium-extracted biomineralization of the intra-scaffold BP nanosheets enables both photothermal ablation of osteosarcoma and the subsequent material-guided bone regeneration in physiological microenvironment, and in the meantime endows the scaffolds with unique physicochemical properties favoring the whole stepwise therapeutic process...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29332500/microstructure-and-mechanical-properties-of-porous-titanium-structures-fabricated-by-electron-beam-melting-for-cranial-implants
#12
Khaja Moiduddin
The traditional methods of metallic bone implants are often dense and suffer from adverse reactions, biomechanical mismatch and lack of adequate space for new bone tissue to grow into the implant. The objective of this study is to evaluate the customized porous cranial implant with mechanical properties closer to that of bone and to improve the aesthetic outcome in cranial surgery with precision fitting for a better quality of life. Two custom cranial implants (bulk and porous) are digitally designed based on the Digital Imaging and Communications in Medicine files and fabricated using additive manufacturing...
January 1, 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29332365/positional-errors-in-linear-accelerator-based-frameless-cranial-stereotaxy-a-note-of-caution
#13
Biplab Sarkar, Anusheel Munshi, Saneg Krishnankutty, Tharmar Ganesh, Bidhu Kalyan Mohanti
No abstract text is available yet for this article.
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332239/which-parameters-are-relevant-in-sagittal-balance-analysis-of-the-cervical-spine-a-literature-review
#14
REVIEW
Fong Poh Ling, T Chevillotte, A Leglise, W Thompson, C Bouthors, Jean-Charles Le Huec
INTRODUCTION: Cervical spine is part of the spine with the most mobility in the sagittal plane. It is important for surgeons to have reliable, simple and reproducible parameters to analyse the cervical. MATERIAL AND METHOD: This study is a systematic review and a critique of current parameters to help improve the study of cervical spinal balance. We conducted a systematic search of PUBMED/MEDLINE for literature published since January 2014. Only studies written in English and containing abstracts were considered for inclusion...
January 13, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29331747/dural-based-cavernous-malformation-at-the-cerebral-convexity-report-of-two-pediatric-patients
#15
Guichen Li, Xuan Zhai, Yang Zhang, Ping Liang, Xuanxuan Wu, Kun Hou
BACKGROUND: Intracranial (cavernous malformations) CMs are usually located at the cerebral parenchyma, dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer that only two pediatric cases were ever reported. In this report, we present two extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiological and pathological features, treatment, and follow-up are described...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330950/comparative-anatomy-of-bat-jaw-musculature-via-diffusible-iodine-based-contrast-enhanced-computed-tomography
#16
Sharlene E Santana
Noctilionoid bats exhibit an extraordinary array of cranial specializations that match diverse diets, including variation in jaw musculature physiological cross-sectional areas (PCSA), lever arms, and relative contribution to bite force. Although previous research in this group has linked variation in skull shape and muscle mechanics to biting performance, there are still important gaps about the anatomical underpinnings of noctilionoid dietary adaptations, including the degree of compartmentalization of the jaw musculature, and whether and how muscle attachment sites have evolved across noctilionoid species that specialize on derived diets...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29330076/frontoethmoidal-schwannoma-with-exertional-cerebrospinal-fluid-rhinorrhea-a-case-report-and-review-of-the-literature
#17
Yuichiro Yoneoka, Katsuhiko Akiyama, Yasuhiro Seki, Go Hasegawa, Akiyoshi Kakita
BACKGROUND: Frontoethmoidal schwannomas are rare. No case manifesting exertional cerebrospinal fluid (CSF) rhinorrhea has ever been reported to the best of our knowledge. CASE DESCRIPTION: In this report, we describe an extremely rare case of frontoethmoidal schwannoma extending through the olfactory groove (OG) with exertional CSF rhinorrhea as the initial symptom. A 50-year-old woman was presented to our clinic for frequent nasal discharge on exertion. A postcontrast computed tomographic scan demonstrated heterogeneously enhanced tumor from the anterior cranial fossa to the anterior ethmoid sinus...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29329488/genetic-and-molecular-insights-into-genotype-phenotype-relationships-in-osteopathia-striata-with-cranial-sclerosis-oscs-through-the-analysis-of-novel-mouse-wtx-mutant-alleles
#18
Glenda Comai, Agnès Boutet, Kristina Tanneberger, Filippo Massa, Ana-Sofia Rocha, Aurelie Charlet, Clara Panzolini, Fariba Jian Motamedi, Robert Brommage, Wolfgang Hans, Thomas Funck-Brentano, Martin Hrabe de Angelis, Christine Hartmann, Martine Cohen-Solal, Jürgen Behrens, Andreas Schedl
The X-linked WTX/AMER1 protein forms an important component of the β-catenin destruction complex that can both enhance and suppress canonical β-catenin signalling. Somatic mutations in WTX/AMER1 have been found in a proportion of the pediatric kidney cancer Wilms' tumour. By contrast, germline mutations cause the severe sclerosing bone dysplasia osteopathia striata congenita with cranial sclerosis (OSCS), a condition usually associated with fetal or perinatal lethality in male patients. Here we addressed the developmental and molecular function of WTX by generating two novel mouse alleles...
January 12, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29325333/-biomechanical-effects-on-adjacent-segments-of-different-growing-rod-fixation-in-early-onset-scoliosis
#19
Y Hai, A X Pan, Y G Li, L Zang, S Yuan
Objective: To analyse the biomechanical effects on adjacent segments of different growing-rod (GR) fixation in early onset scoliosis through a finite element analysis method. Methods: A severe early-onset scoliosis patient was selected and the pre-operation and post-GR-operation (Upper instrumented levels: T(4), T(5). Lower instrumented levels: L(3), L(4)) whole spine 3-dimentional CT scan data were collected to build the finite models. Based on the different models, biomechanical differences on adjacent segments were analysed...
December 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29322963/botulinum-toxin-in-meige-s-syndrome-a-video-based-case-series
#20
Sanjay Pandey, Soumya Sharma
CONTEXT: Despite being the most common cause of cranial dystonia, Meige's syndrome remains a rare clinical entity. Characterized by blepharospasm and orofacial dystonia, patients suffering from Meige's syndrome benefit from the injection of botulinum toxin (BTX). AIMS: As the majority of the studies tend to discuss Meige's syndrome with blepharospasm patients, there is a paucity of case-based studies dealing exclusively with this syndrome. Hence, we intended to characterize and define the evolution of this syndrome and objectively determine the response of the patients suffering from this entity to BTX therapy...
January 2018: Neurology India
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