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https://www.readbyqxmd.com/read/28061486/superficial-temporal-artery-sparing-mini-pterional-approach-for-cerebral-aneurysm-surgery
#1
Jun-Young Ahn, Sung-Tae Kim, Ki-Chang Yi, Won-Hee Lee, Sung Hwa Paeng, Young-Gyun Jeong
OBJECTIVE: The purposes of this study were to introduce a superficial temporal artery (STA)-sparing mini-pterional approach for the treatment of cerebral aneurysms and review the surgical results of this approach. METHODS: Between June 2010 and December 2015, we performed the STA-sparing mini-pterional approach for 117 patients with 141 unruptured intracranial aneurysms. We analyzed demographic, radiologic, and clinical variables including age, sex, craniotomy size, aneurysm location, height of STA bifurcation, and postoperative complications...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28060093/zygomatic-arch-reconstruction-with-miniplate-of-2-0-system-in-complex-fracture
#2
Rodrigo Capalbo-da-Silva, Pedro Henrique Silva Gomes-Ferreira, Luis Fernando Azambuja Alcalde, Erik Neiva Ribeiro de Carvalho Reis, Ciro Borges Duailibe de Deus, Claudio Maltonado Pastori, Francisley Avila Souza
No abstract text is available yet for this article.
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28050992/dautrey-s-procedure-revisited-in-management-of-recurrent-mandibular-dislocation
#3
Joanna Baptist, Mohan Baliga
Mandibular dislocation occurs when the condylar head glides out of the glenoid fossa with the condyle positioned in such a way that its posterior articulating surface lying ahead of the articular eminence. Recurrent mandibular dislocation is relatively uncommon. Patient is extremely distressed and goes through a lot of discomfort. Varied etiologies have been cited in the literature, such as keeping the mouth wide open for long periods of time during dental procedures, yawning, laughing, traumatic injuries to the mandible, psychiatric disturbances, and certain drugs...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28033186/continuous-validity-of-temporalis-muscle-flap-in-reconstruction-of-postablative-palatomaxillary-defects
#4
Ahmed Gaber Hassanein
INTRODUCTION: Postablative palatomaxillary defects (PAPMDs) represent a challenging reconstructive problem. Temporalis muscle flap (TMF) has been widely used for reconstruction of these defects with minimal morbidity and satisfactory outcome. AIM OF THE STUDY: To presents the authors' experience in the reconstruction of PAPMDs with TMF and to evaluate the validity of TMF in the reconstruction of such defects. METHODS: This prospective study was conducted between July 2011 and July 2016 on selected patients for primary reconstruction of PAPMDs with TMF...
December 28, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28032152/revision-surgery-for-zygoma-reduction-causes-indications-solutions-and-results-from-a-5-year-review-of-341-cases
#5
Sang Woo Lee, Yeon Woo Jeong, Yujin Myung
BACKGROUND: Many patients undergo a revision surgery after malar reduction, which is one of the most popular aesthetic surgeries in Asia. We reviewed the leading causes of revision for malar reduction surgery to establish proper indications for revision, seek adequate surgical strategies, and share the results from revision surgical cases. METHODS: A retrospective review was conducted involving 341 patients who underwent malar reduction reoperation between March 2010 and June 2015...
December 28, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28000400/biomechanical-evaluation-of-different-musculoskeletal-arrangements-in-psittacosaurus-and-implications-for-cranial-function
#6
Adam C Taylor, Stephan Lautenschlager, Zhao Qi, Emily J Rayfield
The masseter muscle complex is a unique feature of extant mammals and their advanced cynodont precursors, originating from the zygomatic arch and inserting onto the lateral surface of the dentary. This muscle complex is absent in sauropsids, with the exception of the neomorphic m. pseudomasseter complex that is unique to psittaciform birds (parrots and cockatiels). The anterior position and anterodorsally inclined line of action of both muscle groups increases leverage of the jaw and is thought to contribute to increased bite force, particularly in psittaciforms...
January 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27989712/assessment-of-zygomatic-bone-using-cone-beam-computed-tomography-in-a-turkish-population
#7
Kıvanç Kamburoğlu, Burcu Kirşan Büyükkoçak, Buket Acar, Candan Semra Paksoy
OBJECTIVE: To provide linear and volumetric measurements of zygomatic bone using cone beam computed tomography (CBCT) images. STUDY DESIGN: CBCT images were assessed for 198 patients. Posterior and anterior zygomatic bone widths (M1 and M2), zygomatic bone projection (M3), zygomatic bone height (M4), combined zygomatic arch diameter (M5), maximum cortical thickness (M6), gray value obtained from maximum cortical thickness region (M7), minimum cortical thickness (M8), and gray value obtained from minimum cortical thickness region (M9) were measured...
November 2, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27941553/the-transcranial-stab-wound-and-the-life-saving-zygomatic-arch-clinical-report
#8
Mohammed Yassaad Oudrhiri, Adil Eabdenbi Tsen, Fatima-Ezzahra Fouadi, Sidi Mamoun Louraoui, Yasser Arkha, Abdessamad El Ouahabi
A 58-year-old man presented to the neurosurgical emergencies for a transzygomatic transcranial stab wound with a retained broken knife. The patient was neurologically intact. After radiographic evaluation the knife was found to be penetrating the temporal lobe, neighboring the intracavernous portion of the carotid artery. The patient was successfully managed in a conservative way. No abnormalities were seen at 12 months of follow-up. Dealing with penetrating head injuries is a usual condition in neurosurgical practice...
December 8, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27893551/mid-face-degloving-an-alternate-approach-to-extended-osteotomies-of-the-midface
#9
Anantanarayanan Parameswaran, Naveen Kumar Jayakumar, Manikandhan Ramanathan, Hermann F Sailer
Extended osteotomies for mid-face advancement require generous exposure of the anterior maxilla, nasal bones, infraorbital rims, orbital floor, zygoma, and the anterior third of the zygomatic arches. This cannot be obtained with an exclusive transoral approach. Hence, the surgeon is usually compelled to utilize supplemental cutaneous incisions that are a compromise on the purpose behind a cosmetic surgery. In order to alleviate the need for such compromise, the authors advocate the mid face degloving approach for extended osteotomies at Lefort II and Lefort III levels...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27890546/radiological-evaluation-of-sphenozygomatic-suture-fixation-for-restoration-of-orbital-volume-a-retrospective-study
#10
Rohit Sharma, Chiyyarath Gopalan Muralidharan, Indranil Deb Roy, Narendra Kumar Jain, Seema Patrikar
PURPOSE: Lateral displacement of fracture zygomaticomaxillary complex (ZMC) can cause significant increase in orbital volume leading to enophthalmos. The aim of this study was to radiologically evaluate the efficacy of sphenozygomatic (SZ) suture fixation for restoration of orbital volume after elevation of the temporalis in cases of fracture ZMC where the fixation of zygomatic arch (ZA) was deemed necessary through latero-posterior approach. MATERIALS & METHODS: 43 operated cases of fracture ZMC using 4-point fixation were divided into two groups...
December 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27885569/delayed-retrieval-of-a-displaced-maxillary-third-molar-from-infratemporal-space-via-trans-sinusoidal-approach-a-case-report-and-the-review-of-the-literature
#11
REVIEW
Metin Sencimen, Aydin Gülses, Sencer Secer, Tamer Zerener, Savaş Özarslantürk
AIM: The aim of this case report is to present the trans-sinusoidal pathway used to remove a displaced maxillary third molar from the infratemporal fossa and review the English literature regarding the techniques used. CASE REPORT: A 21-year-old male patient was referred with the findings of an oroantral fistula on the left maxillary vestibular first molar region and slight restriction of mouth opening. The patient underwent a maxillary sinus surgery in order to remove a sinus retention cyst via Caldwell-Luc access in a dental clinic 4 years ago...
November 24, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27870350/the-periosteum-of-the-zygomatic-arch-vascularization-and-growth
#12
Susan W Herring, Pannee Ochareon
In addition to conveying the forces of attaching muscles and ligaments to the zygomatic and temporal bones, the arch periosteum is responsible for lateral apposition and medial resorption during the growth period. In this contribution, we describe the vasculature of the zygomatic arch in young pigs (Sus scrofa dom.) in order to understand the relationship of osseous and periosteal vessels to each other, to surrounding tissues, and to patterns of modeling. Subjects 2-6 weeks of age were perfused with vascular fill; some also received the vital bone label calcein...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870346/divided-zygomatic-bone-in-primates-with-implications-of-skull-morphology-and-biomechanics
#13
Qian Wang, Paul C Dechow
Typically the zygoma is a single bone in the facial skeleton whose shape uniquely copes with loads associated with mastication. Rarely but naturally, the zygoma is divided into two or more parts by supernumerary sutures. These extra intrazygomatic sutures are located at an area of critical morphological and biomechanical importance, yet their impacts have not been studied. In this study, the morphological and possible biomechanical consequences of the divided zygoma (DZ) were investigated in primates including rhesus macaques (Macaca mulatta), orangutans (Pongo abelii and P...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870345/betwixt-and-between-intracranial-perspective-on-zygomatic-arch-plasticity-and-function-in-mammals
#14
Erin M Franks, Nathan E Holton, Jeremiah E Scott, Kevin R McAbee, Jason T Rink, Kazune C Pax, Adam C Pasquinelly, Joseph P Scollan, Meghan M Eastman, Matthew J Ravosa
The zygomatic arch is morphologically complex, providing a key interface between the viscerocranium and neurocranium. It also serves as an attachment site for masticatory muscles, thereby linking it to the feeding apparatus. Though morphological variation related to differential loading is well known for many craniomandibular elements, the adaptive osteogenic response of the zygomatic arch remains to be investigated. Here, experimental data are presented that address the naturalistic influence of masticatory loading on the postweaning development of the zygoma and other cranial elements...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870344/elastic-properties-of-chimpanzee-craniofacial-cortical-bone
#15
Poorva Gharpure, Elias D Kontogiorgos, Lynne A Opperman, Callum F Ross, David S Strait, Amanda Smith, Leslie C Pryor, Qian Wang, Paul C Dechow
Relatively few assessments of cranial biomechanics formally take into account variation in the material properties of cranial cortical bone. Our aim was to characterize the elastic properties of chimpanzee craniofacial cortical bone and compare these to the elastic properties of dentate human craniofacial cortical bone. From seven cranial regions, 27 cylindrical samples were harvested from each of five chimpanzee crania. Assuming orthotropy, axes of maximum stiffness in the plane of the cortical plate were derived using modified equations of Hooke's law in a Mathcad program...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870343/the-biomechanics-of-zygomatic-arch-shape
#16
Amanda L Smith, Ian R Grosse
Mammalian zygomatic arch shape is remarkably variable, ranging from nearly cylindrical to blade-like in cross section. Based on geometry, the arch can be hypothesized to be a sub-structural beam whose ability to resist deformation is related to cross sectional shape. We expect zygomatic arches with different cross sectional shapes to vary in the degree to which they resist local bending and torsion due to the contraction of the masseter muscle. A stiffer arch may lead to an increase in the relative proportion of applied muscle load being transmitted through the arch to other cranial regions, resulting in elevated cranial stress (and thus, strain)...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870339/zygomatic-arch-cortical-area-and-diet-in-haplorhines
#17
Hallie Edmonds
The influence that various types of ingested foods have on the form (size and shape) of specific features of the masticatory system is an area in which many questions remain unanswered. The bony zygomatic arch, the focus of this study, is directly linked to the masticatory system because it serves as the anchor for the masseter muscle, a primary muscle of chewing and source of masticatory force. However, the influence of diet and the forces associated with different diet types on the arch's internal bone architecture is not well understood...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27848082/quantitative-analysis-of-the-trajectory-of-simulated-basilar-apex-aneurysms-through-the-internal-carotid-artery-to-assess-the-need-for-an-orbitozygomatic-approach
#18
Yasushi Motoyama, Yasuo Hironaka, Fumihiko Nishimura, Pritam Gurung, Ryota Sasaki, Yasuhiro Takeshima, Ryosuke Matsuda, Kentaro Tamura, Ichiro Nakagawa, Young-Su Park, Hiroyuki Nakase
BACKGROUND: The aim of this study was to identify the correlation between the location of the internal carotid artery (ICA) and the need for an orbitozygomatic approach (OZA) when approaching a basilar apex (BX) aneurysm. MATERIALS AND METHODS: By imaging the virtual trajectory to access the basilar artery (BA) through the ICA, the correlations among the height of the BX, the height and lateral breadth of the bifurcation of the ICA, and the need for removal of the orbital rim or zygomatic arch were investigated using three-dimensional computed tomography angiography (3DCTA) data of approximately 80 random samples not limited to BX aneurysms...
January 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27820555/sarcopenia-as-a-predictor-of-mortality-in-elderly-blunt-trauma-patients-comparing-the-masseter-to-the-psoas-using-computed-tomography
#19
James D Wallace, Richard Y Calvo, Paul R Lewis, Jason B Brill, Steven R Shackford, Michael J Sise, C Beth Sise, Vishal Bansal
BACKGROUND: Sarcopenia, or age-related loss of muscle mass, is measurable by computed tomography (CT). In elderly trauma patients, increased mortality is associated with decreased psoas muscle cross-sectional area (P-Area) on abdominal CT. Fall is the leading cause of injury in the elderly, and head CT is more often obtained. Masseter muscle cross-sectional area (M-Area) is readily measured on head CT. Hypothesizing that M-Area is a satisfactory surrogate for P-Area, we compared the two as markers of sarcopenia and increased mortality in elderly trauma patients...
January 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27810208/retrograde-maxillary-nerve-perineural-injection-a-tomographic-and-anatomical-evaluation-of-the-infraorbital-canal-and-evaluation-of-needle-type-and-size-in-equine-cadavers
#20
S Nannarone, G Bini, M Vuerich, L Menchetti, R Arcelli, G Angeli
The aim of this study was to investigate a new approach for equine maxillary nerve blocks, which can facilitate several orofacial surgeries. Current techniques aim at the maxillary foramen and approach via the zygomatic arch, conferring the risk of injury to several delicate structures in the target area. To investigate the feasibility of a retrograde approach from the infraorbital foramen, an anatomic study of the infraorbital canal and its surrounding structures was performed on 13 cadaveric skulls using computed tomography and anatomical dissection...
November 2016: Veterinary Journal
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