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https://www.readbyqxmd.com/read/28927217/surgical-technique-for-high-flow-internal-maxillary-artery-to-middle-cerebral-artery-bypass-using-a-superficial-temporal-artery-interposition-graft
#1
Xuequan Feng, Ali Tayebi Meybodi, Jordina Rincon-Torroella, Ivan H El-Sayed, Michael T Lawton, Arnau Benet
BACKGROUND: Extracranial-to-intracranial high-flow bypass often requires cranial, cervical, and graft site incisions. The internal maxillary artery (IMA) has been proposed as a donor to decrease invasiveness, but its length is insufficient for direct intracranial bypass. We report interposition of a superficial temporal artery (STA) graft for high-flow IMA to middle cerebral artery (MCA) bypass using a middle fossa approach. OBJECTIVE: To assess the feasibility of an IMA-STA graft-MCA bypass using a new middle fossa approach...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28918071/the-masseteric-nerve-an-anatomical-study-in-thai-population-with-an-emphasis-on-its-use-in-facial-reanimation
#2
Apichai Angspatt, Chirayu Pannanusorn
BACKGROUND: The use of the masseteric nerve has been escalated as a donor nerve for facial reanimation in facial palsy patient (Wang et al., 2014; Manktelow et al., 2006; Klebuc, 2011; Bianchi et al., 2012; Zuker et al., 2000; Bae et al., 2006; Terzis, Konofaos, 2013; Terzis, Olivares, 2009; Bianchi et al., 2014). Previous studies had been done in Euro-Caucasian cadavers (Kaya et al., 2014). However, difference in anatomical details does exist between Asian and Euro-Caucasian population (Tzou et al...
September 13, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28913285/surgical-methods-of-zygomaticomaxillary-complex-fracture
#3
So Young Ji, Seung Soo Kim, Moo Hyun Kim, Wan Suk Yang
BACKGROUND: Zygoma is a major buttress of the midfacial skeleton, which is frequently injured because of its prominent location. Zygoma fractures are classified according to Knight and North based on the direction of anatomic displacement and the pattern created by the fracture. In zygomaticomaxillary complex (ZMC) fracture many incisions (lateral eyebrow, lateral upper blepharoplasty, transconjunctival, subciliary, subtarsal, intraoral, direct percutaneous approach) are useful. We reviewed various approaches for the treatment of ZMC fractures and discussed about incisions and fixation methods...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913283/reduction-of-zygomatic-arch-isolated-fracture-using-ultra-sound-and-needle-marking
#4
Jun Sik Kim, Young Ji Park, Yoon Jung Lee, Nam Gyun Kim, Kyung Suk Lee
BACKGROUND: Zygomatic arch is a bony arch constituting the lateral midface, which consists of 25% of all midface fractures. There are a number of ways to evaluate the extent of zygomatic arch fracture. Some authors have reported successful treatment outcomes using ultrasound (U/S). To add to the previous methods, we have considered ways to accurately display the location of the fracture line while using U/S with 23 gauge needle marking. We introduce our method, which provided satisfactory results for reduction using a portable U/S, and it can evaluate the fracture line simultaneously when reduction of an isolated zygomatic arch fracture is necessary, and needle marking, which can easily point out the fracture line on U/S...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28891900/use-of-a-balloon-catheter-with-intraoperative-c-arm-fluoroscan-for-reduction-of-zygomatic-arch-fractures
#5
Woon Jae Noh, Tae Jung Park, Joo Yeon Kim, Jae Hwan Kwon
BACKGROUND AND OBJECTIVES: The purpose of this study was to evaluate the usefulness of C-arm fluoroscan with a balloon catheter in patients undergoing closed reduction of zygomatic arch fractures. SUBJECTS AND METHODS: All patients who had zygomatic arch reduction surgery between 2006 and 2015 were identified and classified into 2 groups. Group A included those patients who underwent closed reduction of zygomatic arch fractures. Group B included those who underwent zygomatic arch reduction surgery with a C-arm fluoroscan and supporting balloon...
September 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28872496/advantages-of-a-beveled-osteotomy-on-the-zygomatic-arch-during-reduction-malarplasty
#6
Tae Sung Lee, Sanghoon Park
During a conventional reduction malarplasty procedure, a dual approach including intraoral incisions and preauricular incisions is made to reduce both the zygomatic body and arch. As the preauricular approach is performed to cut the zygomatic arch, there are several remarkable advantages that can be achieved by simply beveling the osteotomy anteriorly on the zygomatic arch. This has the benefits of enhancing bone union by the increase in cross-sectional area for bone contact, decreasing palpability on the osteotomy site, placing the osteotomy more posteriorly, preventing depression in the anterior malar region, and reducing the need for metal fixtures...
September 1, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28838108/the-infrazygomatic-segment-of-the-superficial-temporal-artery-anatomy-and-technique-for-harvesting-a-better-interposition-graft
#7
Ali Tayebi Meybodi, Michael T Lawton, Ivan El-Sayed, Jason Davies, Halima Tabani, Xuequan Feng, Arnau Benet
BACKGROUND: The superficial temporal artery (STA) is underutilized as an interposition graft because current techniques expose and harvest STA above the level of the zygoma. This technique yields a diminutive arterial segment in both length and diameter, which limits its use for extracranial-intracranial bypass. OBJECTIVE: To introduce a safe and efficient technique for harvesting of the infrazygomatic segment of the STA. METHODS: Scalp layers, STA, and the facial nerve were studied in 18 specimens...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28826714/internal-maxillary-artery-to-upper-posterior-circulation-bypass-using-a-superficial-temporal-artery-graft-surgical-anatomy-and-feasibility-assessment
#8
Ali Tayebi Meybodi, Michael T Lawton, Roberto Rodriguez Rubio, Sonia Yousef, Xiaoming Guo, Xuequan Feng, Arnau Benet
BACKGROUND: Revascularization of the upper posterior circulation (UPC), including the superior cerebellar [SCA] and posterior cerebral arteries [PCA], may be necessary as part of the surgical treatment of complex UPC aneurysms or vertebrobasilar insufficiency. The existing bypass options have relative advantages and disadvantages. However, the use of a superficial temporal artery graft (STAg) in a bypass from the internal maxillary artery (IMA) to the UPC has not been previously assessed...
August 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28749842/reconstruction-of-large-postburn-facial-scalp-scars-by-expanded-pedicled-deltopectoral-flap-and-random-scalp-flap-technique-improvements-to-enlarge-the-reconstructive-territory
#9
Xianjie Ma, Yang Li, Weiyang Li, Chaohua Liu, Pai Peng, Baoqiang Song, Wensen Xia, Chenggang Yi, Kaihua Lu, Yingjun Su
The scars of face and scalp caused by burning often show as 1 large facial-scalp scar. The deltopectoral flap was recognized as one of the first choices for the facial scar reconstruction. However, this flap cannot cross the level of zygomatic arch traditionally when it was transferred with pedicle. When the flap reconstructed the facial-scalp scars with expanded random scalp flap, another flap was often needed to reconstruct the remaining temple and forehead scars. The authors reviewed 24 patients of large facial-scalp scars reconstructed by expanded pedicled deltopectoral flap and scalp flap with several technique improvements...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28746906/prototyping-for-the-treatment-of-late-zygomatic-orbital-fracture-a-case-report
#10
Amanda Lúcio do Ó Silva, Isabella Jardelino Dias, Rafael Grotta Grempel, Hécio Henrique Araújo de Morais, Nadja Maria da Silva Oliveira Brito, Daliana Queiroga de Castro Gomes
INTRODUCTION: Zygomatic-orbital complex fractures are the most common facial traumas that can result in severe esthetic and functional sequelae. Surgical correction of these fractures is a delicate approach and prototyping is an excellent tool to facilitate this procedure. PRESENTATION OF CASE: A 27-year-old man, a motorcycle accident victim, was hospitalized in the intensive care unit for 30days. After this period, facial fractures were treated surgically, leaving sequelae such as enophthalmos, dystopia and loss of projection of the zygomatic arch...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28710911/a-novel-technique-for-reduction-malarplasty-by-inward-displacement-of-infractured-zygomatic-arch-without-fixation
#11
Qingfeng Li, Bowen Gao, Ke Li, Feng Xie, Hainan Zhu, Liang-Gang Yu
PURPOSE: Reduction malarplasty is one of the most common esthetic surgical procedures performed in the Asian population. Traditional procedures have several complications, such as bone nonunion, malunion, cheek drooping, and damage to the infraorbital nerve and maxillary sinus. Therefore, a more straightforward and effective method of reducing the width of the midface is needed. In this study, we introduce an infracture technique using inward displacement of the zygomatic arch without fixation...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28685074/use-of-the-bioactive-resorbable-plate-system-for-zygoma-and-zygomatic-arch-replacement-and-fixation-with-modified-crockett-s-method-for-maxillectomy-a-technical-note
#12
Shintaro Sukegawa, Takahiro Kanno, Akane Shibata, Kenichi Matsumoto, Yuka Sukegawa-Takahashi, Kyousuke Sakaida, Yoshihiko Furuki
As a surgical approach targeting the pterygopalatine fossa following maxillary cancer due to tumor invasion, Crockett's method is conventional and useful. However, if the tumor is confined to the area between the maxilla and pterygopalatine fossa, it is not necessary to include the zygomatico-orbital in the access osteotomy, and the orbital floor may be preserved. Depending on the range of tumor invasion, the current study reports a more minimally invasive, modified Crockett's surgery that may be considered, which includes resection with modified osteotomy lines and repositioning with fixation of the zygoma and zygomatic arch following maxillary cancer ablation...
July 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28655434/immediate-full-arch-rehabilitation-of-the-severely-atrophic-maxilla-supported-by-zygomatic-implants-a-prospective-clinical-study-with-minimum-follow-up-of-6-years
#13
E L Agliardi, D Romeo, S Panigatti, M de Araújo Nobre, P Maló
The aim of this study was to evaluate the outcomes of immediate full-arch prostheses supported by zygomatic implants alone or in combination with standard fixtures after a minimum of 6 years of loading. From October 2008 to April 2010, 15 patients with severely atrophic maxillae were treated using four zygomatic implants or two zygomatic implants in conjunction with two conventional fixtures. All subjects received a fixed screw-retained prosthesis within 3hours of surgery, while the final restoration was delivered after 6 months...
June 24, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28642192/applications-of-3d-orbital-computer-assisted-surgery-cas
#14
P Scolozzi
INTRODUCTION: The purpose of the present report is to describe the indications for use of 3D orbital computer-assisted surgery (CAS). PATIENTS AND METHODS: We analyzed the clinical and radiological data of all patients with orbital deformities treated using intra-operative navigation and CAD/CAM techniques at the Hôpitaux Universitaires de Genève, Switzerland, between 2009 and 2016. We recorded age and gender, orbital deformity, technical and surgical procedure and postoperative complications...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28642189/how-to-produce-pre-shaped-rigid-arch-bars-using-low-cost-3d-printing-technology%C3%A2-%C3%A2-a-technical-note
#15
C Druelle, S Touzet-Roumazeille, G Raoul, J Ferri, R Nicot
Numerous oral and maxillofacial procedures in dentate patients begin with the fixation of occlusions. While several techniques exist to perform mandibulo-maxillary fixation, many surgeons use arch bars in common practice. In cases of severe craniofacial traumas or jaw malformations, such as temporomandibular joint ankylosis, it may be impossible to use rigid arch bars. This technical note reports on the development of a technique to produce pre-shaped rigid arch bars using 3D printing technology. We take the case of a patient who presents Le Fort 1, Le Fort 2 and Le Fort 3 fractures as well as a central palatine disjunction, an angular mandibular fracture and bilateral zygomatic fractures...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28603805/stress-and-displacement-patterns-in-the-craniofacial-skeleton-with-rapid-maxillary-expansion-a-finite-element-method-study
#16
J Priyadarshini, C M Mahesh, B S Chandrashekar, Abhishek Sundara, A V Arun, Vinay P Reddy
BACKGROUND: Rapid maxillary expansion (RME), indicated in the treatment of maxillary deficiency directs high forces to maxillary basal bone and to other adjacent skeletal bones. The aim of this study is to (i) evaluate stress distribution along craniofacial sutures and (ii) study the displacement of various craniofacial structures with rapid maxillary expansion therapy by using a Finite Element model. METHODS: An analytical model was developed from a dried human skull of a 12 year old male...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28595841/an-atypical-variant-of-superolateral-dislocation-of-the-mandibular-condyle-a-case-report
#17
Kapil Malik, Subhas C Debnath, Apurba K Adhyapok, Kriti Hazarika
Dislocation of the mandibular condyle from the glenoid fossa can occur in anterior, posterior, lateral, and superior directions. Posterior, lateral, and superior dislocations are rare. Superolateral dislocation is seldom encountered in clinical practice. It is generally associated with fracture of the anterior or contralateral side of the mandible. The occurrence of superolateral dislocation of the condyle hooked above the zygomatic arch with an associated fracture of the medial pole of the condyle is rare and has been reported only once in the literature...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28576712/preserving-the-facial-nerve-during-orbitozygomatic-craniotomy-surgical-anatomy-assessment-and-stepwise-illustration
#18
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, J J González Sánchez, Arnau Benet
OBJECTIVE: Surgical safety and efficiency during an orbitozygomatic (OZ) osteotomy rely on thorough knowledge of the surgical anatomy of the facial nerve. Although the anatomy of the facial nerve and its relation to the pterional craniotomy are described, a thorough assessment of facial nerve preservation techniques during the OZ approach and its variations is lacking. We assessed the surgical anatomy of the facial nerve related to the OZ approach and provided a thorough stepwise description on how to preserve it...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28558149/mandibulofacial-dysostosis-bauru-type-refining-the-phenotype
#19
Priscila P Moura, Nancy M Kokitsu-Nakata, Marília S Yatabe, Siulan Vendramini-Pittoli, Pedro H Hori, Maria L Guion-Almeida, Daniela G Garib, Antonio Richieri-Costa, Roseli M Zechi-Ceide
Mandibulofacial dysostosis (MFD) Bauru type (OMIM 604830) is a rare genetic condition characterized mainly by malar hypoplasia, orofacial cleft, and micrognathia. Here, we describe the clinical and radiographic sings of 13 individuals (12 female and 1 male) from eight unrelated kindreds with MFD Bauru type, including four previously reported cases, treated at the Hospital for Rehabilitation of Craniofacial Anomalies. The clinical phenotype was characterized by severe underdevelopment of mandible, midface hypoplasia, orofacial cleft, bitemporal narrowing, mild upper eyelid down slanting, high nasal bridge, thick and everted lower lip, minor ears abnormalities, and hearing loss...
May 30, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28554455/dentoalveolar-and-arch-dimension-changes-in-patients-treated-with-miniplate-anchored-maxillary-protraction
#20
RANDOMIZED CONTROLLED TRIAL
Mohammed H Elnagar, Eman Elshourbagy, Safaa Ghobashy, Mohamed Khedr, Carla A Evans
INTRODUCTION: The aim of this study was to evaluate dentoalveolar and arch dimension changes in 2 miniplate-anchored maxillary protraction protocols in relation to an untreated control group using 3-dimensional digital models. METHODS: Thirty growing Class III subjects with maxillary deficiency in the late mixed or early permanent dentition phase were randomly divided into 3 groups. In group 1 (n = 10), patients were treated with skeletally anchored facemasks anchored with miniplates placed at the zygomatic buttress...
June 2017: American Journal of Orthodontics and Dentofacial Orthopedics
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