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Zygomaticomaxillary complex

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https://www.readbyqxmd.com/read/29786819/evaluation-of-pterygoid-plate-fractures-unrelated-to-le-fort-fractures-using-maxillofacial-computed-tomography
#1
Serra Özbal Güneş, Yeliz Aktürk, Esra Soyer Güldoğan
BACKGROUND: This study aims to describe the major pterygoid plate fractures (PPFs) patterns unrelated to Le Fort fractures (LFFs) using maxillofacial computed tomography (CT). METHODS: After obtaining our hospital ethics committee approval (37-05), data for PPF were acquired from the medical records of all the trauma patients who were diagnosed using CT at our hospital from April 2014 to April 2017. RESULTS: Of the 178 patients, 135 (male/female = 86/49; mean age = 37...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29782814/primary-assessment-of-the-patient-with-orbital-fractures-should-include-pupillary-response-and-visual-acuity-changes-to-detect-occult-major-ocular-injuries
#2
Jeffrey Chow, Krishnan Parthasarathi, Patrick Mehanna, Eline Whist
PURPOSE: Sight-threatening injuries associated with orbital fractures are of major concern to maxillofacial surgeons whom are often the first asked to assess these patients. Eliciting signs and symptoms that are predictive of these injuries would allow expedited ophthalmic consultation and appropriate management. We hypothesized that abnormal pupillary response is predictive of major ocular injuries. PATIENTS AND METHODS: A retrospective cohort study of patients with facial fractures was instituted with review of all associated ophthalmic injuries...
May 1, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29745761/diagnostic-reliability-of-low-dose-multidetector-computed-tomography-and-cone-beam-computed-tomography-in-maxillofacial-trauma-an-experimental-blinded-and-randomized-study
#3
Romke Rozema, Michiel Hj Doff, Peter Ma van Ooijen, Douwe Postmus, Henriëtte E Westerlaan, Martijn F Boomsma, Baucke van Minnen
OBJECTIVE: To assess the diagnostic reliability of low dose Multidetector Computed Tomography (MDCT) and Cone Beam Computed Tomography (CBCT) for zygomaticomaxillary fracture diagnosis. METHODS: Unilateral zygomaticomaxillary fractures were inflicted on four out of six fresh frozen human cadaver head specimens. All specimens were scanned using four MDCT and two CBCT imaging protocols of which the radiation exposure was systematically reduced. A blinded diagnostic routine was simulated at which 16 radiologists and 8 oral and maxillofacial (OMF) surgeons performed randomized image assessments...
May 10, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29742580/delayed-reduction-of-zygomatic-arch-fracture-effectiveness-of-the-rowe-zygoma-elevator
#4
Jinwoo Kim, Woosuk Hwang
The zygomaticomaxillary complex fractures are common fractures among the all facial fractures, and the zygomatic arch fracture accounts for approximately 10% of all facial fractures. Various routes (Gillies app, Direct cutaneous app, Bicoronal, intraoral) and devices (Foley's ballon catheter, Rowe zygoma elevator, Langenbach, deschamps needle holder, Bone hook) for a surgical intervention of the zygomatic arch have been introduced. However, no study exists that has described an effective method of surgery for zygomatic arch fractures that have been left untreated for a long period, or for unstable reduction that have not been reduced >1 month after surgery...
May 8, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29720719/surgical-navigation-improves-reductions-accuracy-of-unilateral-complicated-zygomaticomaxillary-complex-fractures-a-randomized-controlled-trial
#5
Xiao Zhang, Lanfeng Ye, Hui Li, Yi Wang, Dilnur Dilxat, Weilong Liu, Yuanwei Chen, Lei Liu
Accurate reduction is the key to successful treatment of bone fractures. Complicated zygomaticomaxillary complex fracture, known as one of the most challenging facial bone fractures, is often hard to achieve an accurate reduction, thus leading to facial deformity. In this study, twenty patients with unilateral complicated zygomaticomaxillary complex fractures were included and randomly divided into experimental and control groups, which is with and without the aid of surgical navigation, respectively. The pre- and postoperative imaging data were collected and then analysed using Geomagic Studio 11 software and Brainlab iPlan CMF 3...
May 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29659459/pediatric-zygomaticomaxillary-complex-fracture-repair-location-and-number-of-fixation-sites-in-growing-children
#6
J D Luck, Joseph Lopez, Muhammad Faateh, Alexandra Macmillan, Robin Yang, Edward H Davidson, Arthur Nam, Michael Grant, Anthony P Tufaro, Richard Redett, Paul N Manson, Amir H Dorafshar
BACKGROUND: Currently, there is a relative paucity of data investigating the operative management of displaced pediatric zygomaticomaxillary complex (ZMC) fractures. The purpose of this study was to assess ZMC fracture management and associated complications in the pediatric population, and potentially describe a standard treatment paradigm for pediatric ZMC fractures. METHODS: A retrospective cohort review was performed of all patients younger than 15 years-of-age presenting to a single institution with ZMC fractures from 1990-2010...
April 5, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29520643/quantitative-evaluation-of-facial-hypoplasia-and-airway-obstruction-in-infants-with-syndromic-craniosynostosis-relationship-with-skull-base-and-splanchnocranium-sutural-pattern
#7
Rosalinda Calandrelli, Fabio Pilato, Luca Massimi, Marco Panfili, Gabriella D'Apolito, Simona Gaudino, Cesare Colosimo
PURPOSE: Craniosynostostic syndromes are due to multisuture synostoses and affect the entire craniofacial skeleton. This study analyzed the facial complex and airways to quantify the relationship between insufficient facial growth, airways obstruction, and the sutural pattern of the splanchnocranium and cranial fossae. METHODS: Preoperative high-resolution CT images in 19 infants with syndromic craniosynostosis were quantitatively analyzed. Because all children showed involvement of minor sutures/synchondroses coursing in the posterior cranial fossa, they were divided into three groups according to the synostotic involvement of "minor" sutures/synchondroses coursing in anterior (ACF) and middle (MCF) cranial fossae: group 1 (ACF), group 2 (MCF), and group 3 (ACF-MCF)...
May 2018: Neuroradiology
https://www.readbyqxmd.com/read/29438205/evaluation-of-postoperative-stability-after-open-reduction-and-internal-fixation-of-zygomaticomaxillary-complex-fractures-using-cone-beam-computed-tomography-analysis
#8
Hyo-Jung Kim, Kyung-Hwan Bang, Eun-Ji Park, Yeong-Cheol Cho, Iel-Yong Sung, Jang-Ho Son
The aim of this study was to evaluate whether the amount of fracture displacement affects postoperative stability of isolated zygomaticomaxillary complex fractures and to determine whether the 1-point fixation method is as stable as 2- or 3-point fixation methods. The authors investigated 14 patients with 1-point fixation in the zygomaticomaxillary area (group A), 14 patients with 2-point fixation in the zygomaticomaxillary and frontozygomatic area (group B), and 13 patients with 3-point fixation in the zygomaticomaxillary, frontozygomatic, and infraorbital rim area (group C)...
February 12, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29422224/development-of-a-novel-anatomical-thin-titanium-mesh-plate-with-reduction-guidance-and-fixation-function-for-asian-zygomatic-orbitomaxillary-complex-fracture
#9
Yu-Tzu Wang, Chih-Hao Chen, Po-Fang Wang, Chun-Li Lin
For this study we developed an anatomical thin titanium mesh (ATTM) plate for Asian zygomaticomaxillary complex (ZMC) fracture repair with reduction guidance and fixation function. The ATTM plate profile was designed as an L-shape to fix at the anterior maxilla and lateral buttress of the ZMC. Computer-aided stamping analysis was performed on four screw-hole patterns in the ATTM plate - a control without screw-holes, square screw-holes, double screw-holes, and large-diameter, double screw-holes - using upper/lower dies of averaged ZMC reconstruction models...
April 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29395448/buccal-fat-pad-and-subperiosteal-midface-lifts-in-conjunction-with-open-reduction-and-internal-fixation-to-treat-fractures-of-the-zygomaticomaxillary-complex
#10
G B Bottini, N Berridge, A Messiha
No abstract text is available yet for this article.
April 2018: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29381608/treatment-of-sagittal-fracture-of-the-zygomatic-arch-root-assisted-by-surgical-navigation-technology
#11
Jin-Hong Dai, Dong-Dong Xu, Chang-Yuan Yang, Zu-Bing Li, Zhi Li
Sagittal fracture at the temporal root of the zygomatic arch often occurs as a part of zygomaticomaxillary fractures. The authors described the application of computer-assisted navigation in the lag screw insertion for the fixation of sagittal fracture at the temporal root of zygomatic arch. Using the presurgical planning of the computer-assisted navigation system, the trajectory of lag screw insertion was designed, and the insertion depth was calculated. In the presurgical planning, the trajectory of screw insertion was placed with an anterior inclination of 10° to 15° (mean: 12...
January 29, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29352856/facial-nerve-paralysis-a-rare-complication-of-open-reduction-of-zygomaticomaxillary-complex-fractures
#12
Padmanidhi Agarwal, Ashi Chug, Shailesh Kumar, Kanav Jain
Facial nerve paralysis is an unusual formidable complication that can manifest after various maxillofacial surgeries, including open reduction of facial trauma. The branches more predisposed to such injury are the zygomatic and marginal mandibular branches. Zygomaticomaxillary complex (ZMC) fractures are frequently encountered in maxillofacial trauma. The facial nerve has not been described as endangered during ZMC surgery. Paralysis of the buccal branch after ZMC repair with delayed onset has been reported only once...
December 28, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29349056/sinus-tract-formation-with-chronic-inflammatory-cystic-mass-after-beta-tricalcium-phosphate-insertion
#13
Hong Jin Kim, Woong Gyu Na, Sung Won Jung, Sung Hoon Koh, Hyoseob Lim
Beta tricalcium phosphate (β-TCP) is one of allogenic bone substitute which is known to have interconnected pores that draws cell and nutrients for bone generation. It has been resulted in good outcomes for bone defect coverage or augmentation. However, several studies have also reported negative outcomes and associated complications including unexpected formation of cystic mass, continuous pain and secretion. We present the case of a 36-year-old man with a right cheek cystic mass who had a history of right zygomaticomaxillary (ZM) complex fracture and surgical correction with β-TCP powder insertion to ZM bone defect...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29349052/malar-relocation-with-reverse-l-osteotomy-and-autogenous-bone-graft
#14
Se Hoon Yoon, Euicheol Jeong, Jee Hyeok Chung
The zygomaticomaxillary complex (ZMC) functions as a buttress for the face and is the cornerstone to a person's aesthetic appearance, by both setting the midfacial width and providing prominence to the cheek. Malar deficiency is often acquired by blunt injury incurred in a traumatic accident, resulting in ZMC fracture. A 48-year-old male patient presented a right ZMC fracture after contusion injury by a baseball. He only received conservative management and later he suffered discomfort during mouth opening at the moment of mastication, due to trismus involving the temporomandibular joint...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29330599/infraorbital-foramen-localization-in-orbitozygomatic-fractures-a-ct-study-with-intraoperative-finding
#15
Mohammad Waheed El-Anwar, Ahmed Hassan Sweed
OBJECTIVE: The aim of this study was to assess the infraorbital foramen (IOF) using CT in patients with Zygomaticomaxillary complex (ZMC) fractures (midface fracture). PATIENTS AND METHODS: This prospective study was carried out on 49 patients had ZMC fractures (98 sides) and 27 patients (54 sides) with craniomaxillofacial fractures rather than fractured ZMC as a control. Using CT, position of IOF was documented on 3D view in relation to inferior orbital rim, tooth root relation and finally with a novel imaginary line passing between anterior nasal spine and whitnall tubercle...
March 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29320322/multidetector-ct-of-midfacial-fractures-classification-systems-principles-of-reduction-and-common-complications
#16
David Dreizin, Arthur J Nam, Silviu C Diaconu, Mark P Bernstein, Uttam K Bodanapally, Felipe Munera
The advent of titanium hardware, which provides firm three-dimensional positional control, and the exquisite bone detail afforded by multidetector computed tomography (CT) have spurred the evolution of subunit-specific midfacial fracture management principles. The structural, diagnostic, and therapeutic complexity of the individual midfacial subunits, including the nose, the naso-orbito-ethmoidal region, the internal orbits, the zygomaticomaxillary complex, and the maxillary occlusion-bearing segment, are not adequately reflected in the Le Fort classification system, which provides only a general framework and has become less relevant in contemporary practice...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29304328/use-of-intraoperative-computed-tomography-in-craniomaxillofacial-trauma-surgery
#17
Karl Cuddy, Baber Khatib, R Bryan Bell, Allen Cheng, Ashish Patel, Melissa Amundson, Eric J Dierks
PURPOSE: The use of technology to aid in assessment, planning, and management of complex craniomaxillofacial injuries is increasingly common. Preoperative computed tomography (CT) evaluation is considered the standard of care, and intraoperative imaging is becoming increasingly accessible. Limited data exist regarding the implication of intraoperative CT on decision making in the management of all sites of facial fractures. The purposes of this study were to characterize the use of an intraoperative CT scanner for craniomaxillofacial surgery within our institution, to quantify the effect of intraoperative CT on surgical decision making, and to attempt to provide guidance on when to use this technology...
December 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29233697/retrospective-analysis-of-471-surgically-treated-zygomaticomaxillary-complex-fractures
#18
Michael Blumer, Sabina Kumalic, Thomas Gander, Martin Lanzer, Claudio Rostetter, Martin Rücker, Heinz-Theo Lübbers
PURPOSE: Zygomaticomaxillary complex (ZMC) fractures are frequent in facial trauma; only fractures of the mandible are more common. Although the frequency of these fractures is geographically consistent, the aetiology differs widely among countries and even regions. Differences in socio-economic status and the ageing population seem to be two causes. This retrospective epidemiological study evaluates patients who were surgically treated for ZMC fractures at a Swiss university clinic. MATERIALS AND METHODS: This study included 471 patients who were surgically treated for ZMC fractures in an oral and maxillofacial surgery clinic at a Swiss university hospital between January 2004 and December 2012...
February 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29218289/craniofacial-fibrous-dysplasia-of-zygomaticomaxillary-complex
#19
Kumar Nilesh, Prashant Punde, M I Parkar
Fibrous dysplasia is a benign bone disease first described by Lichtenstein in 1938. It is characterized by progressive replacement of normal bone with fibro-osseous connective tissue. When the disease involves craniofacial skeleton, it results in significant disfigurement and other functional problems. This paper reports a case of large craniofacial fibrous dysplasia involving zygomaticomaxillary complex in a 24-year old male patient. Clinical presentation and imaging characteristics of the pathology is discussed in detail...
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29207845/two-episodes-of-trigeminocardiac-reflex-during-a-pan-facial-fracture-surgery-a-rare-phenomenon-case-report-and-review-of-literature
#20
Abhishek Bhattacharjee, Prashanth Rajaram, Abhishek Khatua, K B Rudresh, Pallavi B Krishnamurthy
Trigeminocardiac reflex is a sudden physiologic response due to mechanical manipulation of any of the branches of trigeminal nerve. Trigeminocardiac reflex occurs due to pressure effect or stretching of trigeminal nerve which causes fall in blood pressure and decrease in heart rate. In this reflex arc, the trigeminal nerve serves as afferent pathway and vagus nerve, which is cardio inhibitory in nature, serves as efferent pathway. Two episodes of trigeminocardiac reflex during maxillofacial trauma surgery is not a common phenomenon...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
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