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Facial anatomy

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https://www.readbyqxmd.com/read/27922488/intraoperative-assessment-of-facial-nerve-trunk-width-in-early-childhood-with-cervicofacial-lymphatic-malformation
#1
Ara Kim, Jeong-Meen Seo, So Young Lim
BACKGROUND: Facial nerve damage during head and neck surgery has long been an important issue. However, few publications on the gross anatomy of the facial nerve are available in the young population. The aim of this study was to provide in vivo measurements of the facial nerve trunk during lymphatic malformation (LM) resection and to determine the association between the trunk width and patient- and disease-related variables. METHODS: We conducted a retrospective analysis of 11 consecutive pediatric patients (11 facial nerve trunks) who underwent cervicofacial LM resection...
December 2, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27920634/frontonasal-dysplasia-towards-an-understanding-of-molecular-and-developmental-aetiology
#2
REVIEW
Peter G Farlie, Naomi L Baker, Patrick Yap, Tiong Y Tan
The complex anatomy of the skull and face arises from the requirement to support multiple sensory and structural functions. During embryonic development, the diverse component elements of the neuro- and viscerocranium must be generated independently and subsequently united in a manner that sustains and promotes the growth of the brain and sensory organs, while achieving a level of structural integrity necessary for the individual to become a free-living organism. While each of these individual craniofacial components is essential, the cranial and facial midline lies at a structural nexus that unites these disparately derived elements, fusing them into a whole...
November 2016: Molecular Syndromology
https://www.readbyqxmd.com/read/27898160/haptic-feedback-improves-surgeons-user-experience-and-fracture-reduction-in-facial-trauma-simulation
#3
Sabine Girod, Sara C Schvartzman, Dyani Gaudilliere, Kenneth Salisbury, Rebeka Silva
Computer-assisted surgical (CAS) planning tools are available for craniofacial surgery, but are usually based on computer-aided design (CAD) tools that lack the ability to detect the collision of virtual objects (i.e., fractured bone segments). We developed a CAS system featuring a sense of touch (haptic) that enables surgeons to physically interact with individual, patient-specific anatomy and immerse in a three-dimensional virtual environment. In this study, we evaluated initial user experience with our novel system compared to an existing CAD system...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27891327/analysis-of-fetal-palate-to-assist-pre-natal-ultrasound
#4
Anjali Shastry, Yogitha Ravindranath, Roopa Ravindranath
INTRODUCTION: Cleft palate is one of the major facial congenital malformation in newborns. Pre-natal detection of this malformation is limited to detection of clefting of hard palate but isolated soft palate clefting still remains challenge for sonologists. As Indian literature is limited present study was attempted to provide dimensions and position of fetal palate by digitized images. AIM: To study dimensions, position and differences in parameters between second and third trimester fetuses...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27883220/how-long-does-the-volumizing-effect-of-a-zingiber-officinale-based-lip-plumper-last
#5
Vittorio Mazzarello, Giuliana Solinas, Pasquale Bandiera, Valeria Pomponi, Gabriella Piu, Marco Ferrari, Andrea Montella
The vermilion zone of the lips (also called red lip or zone of Klein) has peculiar characteristics, different from the surrounding skin, which make it one of the most important parts of the lips. It can be considered a tactile organ, with an essential role in the body's anatomy and functions. Together with the lips, the vermilion zone represents one of the typical characteristics of mammals and its evolutionary appearance seems to be linked to the source of nutrition of these animals (especially breastfeeding), to the articulation of sounds, to their facial expression and to their sexual function...
November 24, 2016: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/27855982/the-skull-of-homo-naledi
#6
Myra F Laird, Lauren Schroeder, Heather M Garvin, Jill E Scott, Mana Dembo, Davorka Radovčić, Charles M Musiba, Rebecca R Ackermann, Peter Schmid, John Hawks, Lee R Berger, Darryl J de Ruiter
The species Homo naledi was recently named from specimens recovered from the Dinaledi Chamber of the Rising Star cave system in South Africa. This large skeletal sample lacks associated faunal material and currently does not have a known chronological context. In this paper, we present comprehensive descriptions and metric comparisons of the recovered cranial and mandibular material. We describe 41 elements attributed to Dinaledi Hominin (DH1-DH5) individuals and paratype U.W. 101-377, and 32 additional cranial fragments...
November 14, 2016: Journal of Human Evolution
https://www.readbyqxmd.com/read/27833706/variant-anatomy-of-the-nasal-and-labial-branches-of-the-infraorbital-nerve
#7
Joseph Munyiri Nderitu, Fawzia Butt, Hassan Saidi
Comprehensive understanding of the variations in the branches of the infraorbital nerve (ION) is vital to the prevention of iatrogenic nerve injury and successful ION blockade during orbitozygomatic facial procedures. Only a few studies exist on the variant anatomy of the branching patterns of this nerve. This article provides a detailed description of the variations of the nasal and superior labial branches of the ION. This study was performed on 84 IONs by dissecting 42 formalin-fixed cadavers from the Laboratory of Topographic Anatomy, Department of Human Anatomy, University of Nairobi...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27833101/tracking-modern-human-population-history-from-linguistic-and-cranial-phenotype
#8
Hugo Reyes-Centeno, Katerina Harvati, Gerhard Jäger
Languages and genes arguably follow parallel evolutionary trajectories, descending from a common source and subsequently differentiating. However, although common ancestry is established within language families, it remains controversial whether language preserves a deep historical signal. To address this question, we evaluate the association between linguistic and geographic distances across 265 language families, as well as between linguistic, geographic, and cranial distances among eleven populations from Africa, Asia, and Australia...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27791521/perpetuation-of-errors-in-illustrations-of-cranial-nerve-anatomy
#9
C Eduardo Corrales, Albert Mudry, Robert K Jackler
For more than 230 years, anatomical illustrations have faithfully reproduced the German medical student Thomas Soemmerring's cranial nerve (CN) arrangement. Virtually all contemporary atlases show the abducens, facial, and vestibulocochlear nerves (CNs VI-VIII) all emerging from the pontomedullary groove, as originally depicted by Soemmerring in 1778. Direct observation at microsurgery of the cerebellopontine angle reveals that CN VII emerges caudal to the CN VIII root from the lower lateral pons rather than the pontomedullary groove...
October 28, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27790965/effects-of-anatomical-variation-on-trainee-performance-in-a-virtual-reality-temporal-bone-surgery-simulator
#10
P Piromchai, I Ioannou, S Wijewickrema, P Kasemsiri, J Lodge, G Kennedy, S O'Leary
OBJECTIVE: To investigate the importance of anatomical variation in acquiring skills in virtual reality cochlear implant surgery. METHODS: Eleven otolaryngology residents participated in this study. They were randomly allocated to practice cochlear implant surgery on the same specimen or on different specimens for four weeks. They were then tested on two new specimens, one standard and one challenging. Videos of their performance were de-identified and reviewed independently, by two blinded consultant otolaryngologists, using a validated assessment scale...
October 28, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27790095/merged-group-tractography-evaluation-with-selective-automated-group-integrated-tractography
#11
David Q Chen, Jidan Zhong, David J Hayes, Brendan Behan, Matthew Walker, Peter S-P Hung, Mojgan Hodaie
Introduction: Tractography analysis in group-based studies across large populations has been difficult to implement. We propose Selective Automated Group Integrated Tractography (SAGIT), an automated group tractography software platform that incorporates multiple diffusion magnetic resonance imaging (dMRI) practices which will allow great accessibility to group-wise dMRI. We use a merged tractography approach that permits evaluation of tractography datasets at the group level. We also introduce an image normalized overlap score (NOS) that measures the quality of the group tractography results...
2016: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/27787268/anatomy-of-the-cervicomental-region-insights-from-an-anatomy-laboratory-and-roundtable-discussion
#12
Jeffrey M Kenkel, Derek H Jones, Steven Fagien, Dee Anna Glaser, Gary D Monheit, Karen Stauffer, Jonathan M Sykes
In 2015, ATX-101 (deoxycholic acid injection; Kybella in the United States and Belkyra in Canada; Kythera Biopharmaceuticals, Inc., Westlake Village, CA [an affiliate of Allergan plc, Dublin, Ireland]) was approved as a first-in-class injectable drug for reduction of submental fat. Use of a pharmacologic/injectable therapy within the submental region requires a thorough understanding of cervicomental anatomy to ensure proper injection technique and safe administration. To this end, an anatomy laboratory was conducted to review key external landmarks and important internal anatomic structures that characterize the lower face and anterior neck...
November 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27787267/proper-technique-for-administration-of-atx-101-deoxycholic-acid-injection-insights-from-an-injection-practicum-and-roundtable-discussion
#13
Derek H Jones, Jeffrey M Kenkel, Steven Fagien, Dee Anna Glaser, Gary D Monheit, Karen Stauffer, Jonathan M Sykes
ATX-101 (deoxycholic acid injection; Kybella in the United States and Belkyra in Canada; Kythera Biopharmaceuticals, Inc., Westlake Village, CA [an affiliate of Allergan plc, Dublin, Ireland]) is the first aesthetic injectable approved for reduction of submental fat. In February 2014, an injection practicum was conducted in the anatomy laboratory at the University of Texas Southwestern Medical Center to explore the proper injection technique for ATX-101 and the importance of its appropriate, safe anatomical placement within the submental area...
November 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27767062/the-first-oviraptorosaur-dinosauria-theropoda-bonebed-evidence-of-gregarious-behaviour-in-a-maniraptoran-theropod
#14
Gregory F Funston, Philip J Currie, David A Eberth, Michael J Ryan, Tsogtbaatar Chinzorig, Demchig Badamgarav, Nicholas R Longrich
A monodominant bonebed of Avimimus from the Nemegt Formation of Mongolia is the first oviraptorosaur bonebed described and the only recorded maniraptoran bonebed from the Late Cretaceous. Cranial elements recovered from the bonebed provide insights on the anatomy of the facial region, which was formerly unknown in Avimimus. Both adult and subadult material was recovered from the bonebed, but small juveniles are underrepresented. The taphonomic and sedimentological evidence suggests that the Avimimus bonebed represents a perimortem gregarious assemblage...
October 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27765151/comparative-biomechanics-of-australopithecus-sediba-mandibles
#15
David J Daegling, Kristian J Carlson, Paul Tafforeau, Darryl J de Ruiter, Lee R Berger
Fossils attributed to Australopithecus sediba are described as having phylogenetic affinities with early Homo to the exclusion of other South African australopiths. With respect to functional anatomy of mastication, one implication of this hypothesis is that A. sediba mandibles should exhibit absolutely and relatively reduced stiffness and strength in comparison to Australopithecus africanus and Paranthropus robustus jaws. Examination of cortical bone distribution in the MH 1 and MH 2 mandibles of A. sediba (evaluated against samples of Pan, early and modern Homo as well as A...
November 2016: Journal of Human Evolution
https://www.readbyqxmd.com/read/27765098/-ct-study-on-the-development-of-facial-nerve-canal-in-children
#16
J M Li, W B Xu, J W Zhong, H Y Wu, W C Dai
Objective: To assess the characteristics of facial nerve canal between normal anatomy and dysplasia of children in different ages. Methods: A total of 492 health ears were divided into six groups, neonatal group (<1 m , n=42), infancy group(1 m-1 y, n=106), toddler group(1-3 y, n=102), preschool group (3-6 y, n=100), school group(6-10 y, n=60)and adolescent group (10-14 y, n=82). The length and diameter of facial nerve canal and that angles of first and second genu were measured with CT in each group. Results: ①The lengths of facial nerve canal in neonatal and infancy group were shorter than other four groups, especially in the mastoid segments of facial nerve canal...
October 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/27763946/surgical-reconstruction-of-lower-face-degloving
#17
Paulo Esteves Pinto Faria, Abrahão Cavalcante Gomes de Souza Carvalho, Bárbara Masalskas, Letícia Chihara, Eduardo Sant'Ana, Osvaldo Magro Filho
One of the most impressive soft tissue injuries is the facial degloving, normally associated with industrial machines and traffic accidents. This injury is characterized by the separation of the skin and cartilage from the bones, compromising the soft tissues correlated in the trauma area, nerves, and blood vessels. A 28-year-old patient, male, was referred to Araçatuba's Santa Casa Hospital, after a motorcycle accident, hitting his face on the sidewalk. The patient was conscious, oriented, denying fainting and unconsciousness during the accident, and complaining of pain in the nasal region of the face...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27761285/revisiting-the-anatomy-of-the-facial-recess-the-boundaries-of-the-round-window-exposure
#18
Kerem Öztürk, Sercan Göde, Servet Çelik, Mustafa Orhan, Okan Bilge, Cem Bilgen, Tayfun Kirazlı, Canan Y Saylam
BACKGROUND: The exposure of the round window (RW) through the facial recess (FR) is sometimes partial. The anatomic variations that alter RW exposure during cochleostomy have not been clearly defined to date. AIMS: The aim of this study was to assess the best FR position in which to achieve the widest exposure of the RW niche and to define the topographic relationship between two other important anatomical structures, the facial nerve (FN) and the chorda tympani (CT)...
September 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27755407/anthropometrically-based-surgical-technique-for-tessier-3-cleft-reconstruction
#19
Aaron L Morgan, Roger Cason, Christian A El Amm
Craniofacial clefts are rare entities, with an incidence reported as 1.43 to 4.85 per 100,000 births. The Tessier number 3 cleft, the most medial of the oblique clefts, can manifest as clefting of the lip between the canine and lateral incisors, colobomas of the nasal ala and lower eyelid, and inferior displacement of the medial canthus-frequently disrupting the lacrimal system with extreme variability in expressivity (Eppley).Literature on cleft lip repair is extensive and has evolved to incorporate anthropometric techniques, based on identifiable landmarks and anthropometric measurements that are compared with contralateral unaffected anatomy or population means and tracked over time to assess impact on growth...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27755395/an-anatomical-murine-model-of-heterotopic-periorbital-subunit-transplantation
#20
Bowen Gao, Qingxiong Yu, Feng Xie, Lingling Sheng, Xiyuan Mao, Qingfeng Li, Hainan Zhu
BACKGROUND: Conventional reconstructive methods fail to achieve satisfactory results in total eyelid defect cases. Vascularized composite tissue allotransplantation might provide both good appearance and function for these patients. The structure of the eyelid is exceptional because it simultaneously consists of skin, connective tissue, the striated muscle, fiber structure, aponeuroses, and mucosa. Thus, before clinical application of eyelid allotransplantation, more experiments are needed to clarify the impact of ischemia, immunal suppressive agents, and deinnervation effects on these sophisticated structures...
October 13, 2016: Ophthalmic Plastic and Reconstructive Surgery
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