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https://www.readbyqxmd.com/read/29684308/fracture-healing-and-bone-remodeling-with-human-standard-sized-magnesium-versus-polylactide-co-glycolide-plate-and-screw-systems-using-a-mini-swine-craniomaxillofacial-osteotomy-fixation-model
#1
Benoît Schaller, John Patrik Matthias Burkhard, Madeleine Chagnon, Stefan Beck, Thomas Imwinkelried, Michel Assad
PURPOSE: This study compared the degradation profile, safety, and efficacy of bioresorbable magnesium alloy and polylactide-co-glycolide (PLGA) polymer osteosynthesis systems for the treatment of fractures in a load-sharing maxillofacial environment using a new mini-swine fracture fixation model. MATERIALS AND METHODS: Two types of clinically relevant situations were evaluated in 5 Yucatan miniature pigs. Defined porcine midface osteotomies of the supraorbital rim and zygoma were created and fixed with either a coated magnesium (test animals) or PLGA plate and screw osteosynthesis system (control animals)...
March 31, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29609437/intraosseous-hemangioma-of-the-orbit
#2
June Seok Choi, Yong Chan Bae, Gyu Bin Kang, Kyung-Un Choi
Intraosseous hemangioma is an extremely rare tumor that accounts for 1% or fewer of all osseous tumors. The most common sites of its occurrence are the vertebral column and calvaria. Occurrence in a facial bone is very rare. The authors aim to report a case of the surgical treatment of intraosseous hemangioma occurring in the periorbital region, which is a very rare site of occurrence and to introduce our own experiences with the diagnosis and treatment of this condition along with a literature review. A 73-year-old male patient visited our hospital with the chief complaint of a mass touching the left orbital rim...
March 2018: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29527397/wolf-in-sheep-s-clothing-intracranial-actinomycosis-masquerading-as-en-plaque-meningioma
#3
Harsh Deora, Manish Beniwal, Shilpa Rao, K V L N Rao, V Vikas, Sampath Somanna
Background: Actinomycosis israeli is a gram-positive non-acid-fast bacterium and is the most common causative agent of actinomycosis. It usually presents as a brain abscess via a secondary spread from the cervicofacial region or lungs. However, presentation as an en-plaque lesion with bone involvement out of proportion to brain parenchyma is rare and needs to be acknowledged. Case Description: We report a case of intracranial en-plaque lesion in a 47-year-old female with restriction of mouth opening and right third nerve palsy for 1 year...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29526035/trends-and-characteristics-of-maxillofacial-fractures-sustained-during-sports-activities-in-japan
#4
Kazuhiko Yamamoto, Yumiko Matsusue, Satoshi Horita, Kazuhiro Murakami, Tsutomu Sugiura, Tadaaki Kirita
BACKGROUND/AIM: Sports activity increases the risk of maxillofacial fractures. The aim of this study was to analyze trends and characteristics of maxillofacial fractures sustained during sports activity to develop more effective treatments and possibly to prevent injury. MATERIALS AND METHODS: Data of 248 patients with maxillofacial fractures sustained during sports activity were retrospectively analyzed based on their clinical records and radiographs. RESULTS: The patients were 226 males (91...
March 11, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/29519577/an-improved-technique-for-zygoma-reduction-malarplasty
#5
Jae Jin Kim, Eun Young Lee, Hyun Seok, Ji Yeon Kang
Zygoma reduction malarplasty is a standard procedure primarily performed in Asia on patients who prefer an oval facial shape. The technique is well established and standardized. However, the esthetic results are frequently unsatisfactory or accompanied by complications such as nonunion, malunion, and cheek drooping. These complications are generally attributed to postoperative bone fragment movement. In this study, we present an improvement to this standard procedure that involves modifying the surgical technique...
February 2, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29485569/ligaments-of-the-face-past-present-and-future
#6
Kun Hwang, Jeongho Choi
The aim of this study is to search for the origin of the term "ligament' in the face, present its status, and suggest a principle to rectify the use of unclear terminology.The structure that connects the zygoma to the skin was first presented by McGregor (1959). Kaye (1981), in describing his "extended facelift," wrote that the adherent area of the cheek over the malar eminence (McGregor's patch) usually requires sharp dissection. Bosse (1987) reported that the zygomatic ligament is quite solidly bound to the malar eminence and usually requires sharp dissection to release it...
February 26, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29481493/contour-restoration-of-over-resected-mandibular-angle-and-lower-border-by-reduction-mandibuloplasty-using-three-dimensional-planning-and-computer-aided-design-and-manufacturing-custom-made-titanium-implants
#7
Jae Man Woo, Seung-Hak Baek, Jong-Cheol Kim, Jin-Young Choi
OBJECTIVE: The purpose of this clinical report was to introduce a new methodology for contour restoration of the over-resected mandible by reduction mandibuloplasty using 3-dimensional (3D) planning and computer-assisted design and manufacturing (CAD-CAM) custom-made titanium implants. PATIENT AND METHOD: A 20-year-old male patient had undergone reduction of the zygoma and mandibular angle and lower border for esthetic reason 1 year ago at a private clinic. However, he was not satisfied with surgical outcome and wanted to restore his original facial volume and contour...
February 23, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29480233/3d-reconstruction-images-of-cone-beam-computed-tomography-applied-to-maxillofacial-fractures-a-case-study-and-mini-review
#8
Liyun Bai, Linlin Li, Kexin Su, Anthony Bleyer, Yuanyuan Zhang, Ping Ji
Maxillofacial injuries can be complex and are clinically important due to their functional and cosmetic significance. Maltreated and missed fractures might cause deformity of the face; thus, accurate evaluation of the fracture provided by X-ray images is critical. In this study, we explore the application of cone-beam computed tomography (CBCT) for diagnosis of severe maxillofacial traumas. A patient with a complex fracture that affects the maxilla, mandible, wall of the maxillary sinus, zygoma, zygomatic arch and nasal bone was diagnosed using 3D reconstruction of CBCT images...
2018: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29419598/occlusion-fit-three-dimensional-printed-zygoma-repositioner
#9
Jinyong Cho, Jae-Sung Kwon, Ui-Lyong Lee
Reduction malarplasty is utilized to reshape the facial form into an oval shape. However, complications and unfavorable results in reduction malarplasty have been reported. Reoperation of a nonunion malar complex is difficult relative to the achievement of a satisfactory outcome using the intraoral approach with a narrow surgical field because the normal anatomy has been destroyed, and previous surgery may have caused asymmetry. In this situation, computer-aided simulation surgery and surgical guides can serve as effective solutions to overcome the limitations of reoperative malarplasty using the intraoral approach...
February 6, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29414502/intraorbital-hemorrhage-following-a-secondary-intervention-at-integrated-zygomatic-implants-a-case-report
#10
Philippe Van Camp, Luc Vrielinck, Bert Gemels, Constantinus Politis
INTRODUCTION: Zygomatic implant placement can be the best option for restoring masticatory function of an extremely atrophic upper jaw, but the procedure is more invasive than conventional implant placement and can be associated with complications. PRESENTATION OF CASE: We report a complication that occurred during a secondary corrective surgical procedure four years after zygomatic implant placement. The patient was a 54-year-old female who had been edentulous for 25 years...
January 29, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29410765/alternative-intraoral-donor-sites-to-the-chin-and-mandibular-body-ramus
#11
REVIEW
David Reininger, Carlos Cobo-Vázquez, Benjamin Rosenberg, Juan López-Quiles
Background: Provide a review of alternative intraoral donor sites to the chin and body-ramus of the mandible that bring fewer complications and that may be used to regenerate small and medium defects. Material and Methods: A review was conducted using the search engine PUBMED and looking manually into scientific journals. Results: From the 35 articles included, 6 corresponded to the coronoids, 3 corresponded to the zygomatic body, 5 corresponded to the anterior maxillary sinus wall, 3 corresponded to the zygomatic alveolar process, 2 corresponded to the incisive fossa, 2 corresponded to the anterior nasal spine, 2 corresponded to the palatal region, 5 corresponded to the tuberosity, and 7 corresponded to the palatal and mandibular tori...
December 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29394179/zygoma-quad-compared-with-2-zygomatic-implants-a-systematic-review-and-meta-analysis
#12
Samir Aboul-Hosn Centenero, Aída Lázaro, Maria Giralt-Hernando, Federico Hernández-Alfaro
PURPOSE: The aim of this study was to systematically review and compare the survival rates (SRs) of oral rehabilitations performed with 2 zygomatic implants (ZIs) combined with regular implants (RIs) versus 4 ZI. MATERIAL AND METHODS: An electronic search was performed in several databases for articles published in English between 2007 and 2015. Articles reporting human studies were included in this systematic review. RESULTS: The search yielded to a total of 417 studies, of which 6 were included in this study...
January 29, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29387309/correction-of-a-posttraumatic-orbital-deformity-using-three-dimensional-modeling-virtual-surgical-planning-with-computer-assisted-design-and-three-dimensional-printing-of-custom-implants
#13
Kristopher M Day, Paul M Phillips, Larry A Sargent
We describe a case of complex, posttraumatic skull and orbital deformities that were evaluated and treated with advanced computer technology, including virtual surgical planning, three-dimensional (3D) modeling, and printed patient custom implants (PCI) fabricated by 3D printing. A 50-year-old man presented to our craniofacial referral center 1 year after failed reduction of complex left orbital, zygomatic, and frontal bone fractures due to a motorcycle collision. The patient's chief complaint was debilitating diplopia in all fields of gaze...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29387305/craniomaxillofacial-fibrous-dysplasia-conservative-treatment-and-maxillary-osteotomy-using-the-schuchardt-kufner-technique
#14
Manlio Galiè, Giulia Carnevali, Giovanni Elia, Massimo Pedriali, Luigi C Clauser
Fibrous dysplasia (FD) is a disturbance of the mesenchymal tissue that accounts for 2.5% of all bone tumors and more than 7% of nonmalignant bone tumors. In the craniomaxillofacial region, FD affects the calvaria, skull base, zygoma, and jaws, the prevalent site being the maxilla (50% of cases). Therapy for craniomaxillofacial FD is surgical. The goals of surgery are to prevent functional disorders and restore facial symmetry, volume, and contour. In this article, we present a case of a young female patient affected by right orbital-zygomatic-maxillary FD...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29381626/the-measurement-of-various-anatomical-structures-and-assessment-of-morphometric-development-of-fetal-skull-base
#15
Vural Hamzaoglu, Mustafa Aktekin, Onur Ismi, Hakan Ozalp, Dilan Karşiyaka, Fuat Cem Baskan, Yusuf Vayisoglu, Rabia Bozdogan Arpaci, Filiz Cayan, Can Mehmet Eti, Emine Ecem Cakir, Perihan Gocer, Merve Turkegun, Arzu Kanik, Celal Bagdatoglu, Derya Umit Talas
BACKGROUND: As the skull base has a complex anatomy, we underline the importance of anomalies for side asymmetry. It is useful to investigate relationship between anatomical structures for the surgical procedure orientations. Dural adherence, enlarged superior petrosal sinus, influence of neural crest cells, and cranial base ossification are among the factors in morphometric growth on skull base. MATERIAL AND METHODS: Twenty-five fetuses of an estimated gestational age ranging from 17 to 34 weeks were studied in the Anatomy Laboratory of Mersin University Medical Faculty...
January 19, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29322603/the-nerve-supply-of-zygomaticus-major-variability-and-distinguishing-zygomatic-from-buccal-facial-nerve-branches
#16
A Kehrer, S Engelmann, R Bauer, C Taeger, S Grechenig, M Kehrer, L Prantl, E R Tamm, R L A W Bleys, V Mandlik
The zygomaticus major (ZM) is important for the human smile. There are conflicting data about whether the zygomatic or buccal branches of the facial nerve are responsible for its motor innervation. The literature provides no precise distinction of the transition zone between these two branch systems. In this study, a definition to distinguish the facial nerve branches at the level of the body of the zygoma is proposed. In the light of this definition, we conducted an anatomical study to determine how the source of innervation of the ZM was distributed...
January 11, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29319569/comparing-head-and-facial-computed-tomographic-imaging-in-identifying-operative-facial-fractures
#17
Joseph A Ricci, Bao Ngoc N Tran, Qing Z Ruan, Samuel J Lin, Dhruv Singhal, Bernard T Lee
BACKGROUND: Patients who present for a trauma workup often have a head computed tomography (CT) performed to identify intracranial pathology. Facial fractures are routinely identified in these patients, and further imaging is the norm with dedicated facial CT scans. Additional imaging increases radiation doses; however, it is unclear if additional operative fractures are identified. The aim of this study was to examine differences between these 2 CT imaging modalities. METHODS: A retrospective review of all operative facial trauma patients receiving both head and facial scans at a single institution was performed (1999-2012)...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29238374/zygoma-implants-in-oral-rehabilitation-a-review-of-28-cases
#18
Rowland Agbara, Elizabeth Goetze, Felix Koch, Wilfred Wagner
Background: The functional and esthetic rehabilitation of patients with atrophic maxilla or posterior maxillary defect is often challenging. The aim of this study was to determine patient demographics, indications, success rate, and complications following the use of zygoma implants. Materials and Methods: All patients who had zygoma implant placement in our clinic between 1998 and 2013 were retrospectively assessed for implant outcome. Data were analyzed using Statistical Package for the Social Sciences (SPSS) version 16 and Microsoft Excel 2007 test for significance (ρ) using Pearson's Chi-square (χ2 ) set at 0...
November 2017: Dental Research Journal
https://www.readbyqxmd.com/read/29232204/the-zygoma-and-the-symphysis-new-extra-alveolar-sites-for-long-mini-implants
#19
Carlos Villegas, Niloufar Azami, Ravindra Nanda, Flavio A Uribe
No abstract text is available yet for this article.
October 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29218292/primary-one-stage-reconstruction-in-complex-facial-avulsion-injury
#20
Abhishek Ghosh
Complex facial injuries with soft tissue degloving and bony avulsion are very devastating to the patient. Partial degloving injuries are described but hemifacial degloving with zygoma avulsion are rare. The author presents a case of post-traumatic degloving of the left upper lip, nose, part of forehead, upper and lower eyelids and cheek with avulsion of the left zygoma. The management included immediate resuscitation and early surgery to reposition the skeletal as well as soft tissue avulsion. The wound was thoroughly washed and primary repositioning and fixation were done...
September 2017: World Journal of Plastic Surgery
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