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https://www.readbyqxmd.com/read/28223015/surgical-management-of-ankyloses-of-the-temporomandibular-joint-by-a-piezoelectric-device
#1
Giuseppe Spinelli, Domenico Valente, Giuditta Mannelli, Mirco Raffaini, Francesco Arcuri
INTRODUCTION: Piezosurgery is commonly used in different field of craniomaxillofacial surgery; since its introduction it has become one of the widely adopted technique for performing osteotomies in orthognathic surgery, distraction osteogenesis and dentoalveolar surgery. Little has been written regarding ultrasonic system for temporomandibular joint surgery (TMJ). In this prospective study we describe the use of piezoelectric device for ankylosis of the TMJ. MATERIALS AND METHODS: We enrolled in this study 19 patients, 10 males and 9 females, mean (SD) age 24...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28202368/the-use-of-virtual-surgical-planning-and-navigation-in-the-treatment-of-orbital-trauma
#2
Alan Scott Herford, Meagan Miller, Floriana Lauritano, Gabriele Cervino, Fabrizio Signorino, Carlo Maiorana
Virtual surgical planning (VSP) has recently been introduced in craniomaxillofacial surgery with the goal of improving efficiency and precision for complex surgical operations. Among many indications, VSP can also be applied for the treatment of congenital and acquired craniofacial defects, including orbital fractures. VSP permits the surgeon to visualize the complex anatomy of craniofacial region, showing the relationship between bone and neurovascular structures. It can be used to design and print using three-dimensional (3D) printing technology and customized surgical models...
January 21, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28161205/comparison-of-three-dimensional-scanner-systems-for-craniomaxillofacial-imaging
#3
Paul G M Knoops, Caroline A A Beaumont, Alessandro Borghi, Naiara Rodriguez-Florez, Richard W F Breakey, William Rodgers, Freida Angullia, N U Owase Jeelani, Silvia Schievano, David J Dunaway
Two-dimensional photographs are the standard for assessing craniofacial surgery clinical outcomes despite lacking three-dimensional (3D) depth and shape. Therefore, 3D scanners have been gaining popularity in various fields of plastic and reconstructive surgery, including craniomaxillofacial surgery. Head shapes of eight adult volunteers were acquired using four 3D scanners: 1.5T Avanto MRI, Siemens; 3dMDface System, 3dMD Inc.; M4D Scan, Rodin4D; and Structure Sensor, Occipital Inc. Accuracy was evaluated as percentage of data within a range of 2 mm from the 3DMDface System reconstruction, by surface-to-surface root mean square (RMS) distances, and with facial distance maps...
January 7, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28114217/three-dimensional-reconstruction-of-the-craniofacial-skeleton-with-gradient-echo-magnetic-resonance-imaging-black-bone-what-is-currently-possible
#4
Karen A Eley, Stephen R Watt-Smith, Stephen J Golding
Three-dimensional (3D) reconstructed computed tomography (CT) imaging has become an integral component of craniomaxillofacial patient care. However, with increasing concern regarding the use of ionizing radiation, particularly in children with benign conditions who require repeated examinations, dose reduction and nonionizing alternatives are actively being sought. The "Black Bone" magnetic resonance imaging (MRI) technique provides uniform contrast of the soft tissues to enhance the definition of cortical bone...
January 20, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28079945/systematic-review-of-site-distribution-of-bone-metastases-in-differentiated-thyroid-cancer
#5
REVIEW
Marcela Osorio, Sami P Moubayed, Henry Su, Mark L Urken
BACKGROUND: Thyroid cancer is the fastest growing cancer in the United States. A small portion of differentiated thyroid cancers (DTCs; 2% to 13%) develop bone metastases, which can decrease a patient's survival rate by more than 60%. METHODS: A systematic literature search of studies, including patients with DTC with bone metastases, was conducted by following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A case series of patients with DTC diagnosed with bone metastases seen at our institution was also included...
January 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/28005747/a-craniomaxillofacial-surgical-assistance-workstation-for-enhanced-single-stage-reconstruction-using-patient-specific-implants
#6
Ryan J Murphy, Peter C Liacouras, Gerald T Grant, Kevin C Wolfe, Mehran Armand, Chad R Gordon
BACKGROUND: Craniomaxillofacial reconstruction with patient-specific, customized craniofacial implants (CCIs) is ideal for skeletal defects involving areas of aesthetic concern-the non-weight-bearing facial skeleton, temporal skull, and/or frontal-forehead region. Results to date are superior to a variety of "off-the-shelf" materials, but require a protocol computed tomography scan and preexisting defect for computer-assisted design/computer-assisted manufacturing of the CCI. The authors developed a craniomaxillofacial surgical assistance workstation to address these challenges and intraoperatively guide CCI modification for an unknown defect size/shape...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27986471/retrospective-clinical-study-of-maxillary-sagittal-fractures-predictors-of-postoperative-outcome
#7
Krishna Prasad Regmi, JunBo Tu, SuMeng Ge, ChengQun Hou, XiaoYi Hu, ShiXian Li, JingTing Du
PURPOSE: Because of less attention to the sagittal component of maxillary fractures, these fractures are often misdiagnosed and the reduction leading to maxillary transverse discrepancies is missed. Therefore, the purpose of this study was to identify factors associated with good or adverse postoperative outcomes of maxillary sagittal fractures. MATERIALS AND METHODS: This study was a single-center retrospective cohort study. The sample was composed of cases of maxillary sagittal fractures treated at the Department of Oral and Maxillofacial Surgery, Craniomaxillofacial Trauma Unit of Xi'an Jiaotong University (Xi'an, China) from January 2008 through December 2013...
November 23, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27942578/three-dimensional-printing-of-bone-extracellular-matrix-for-craniofacial-regeneration
#8
Ben P Hung, Bilal A Naved, Ethan L Nyberg, Miguel Dias, Christina A Holmes, Jennifer H Elisseeff, Amir H Dorafshar, Warren L Grayson
Tissue-engineered approaches to regenerate bone in the craniomaxillofacial region utilize biomaterial scaffolds to provide structural and biological cues to stem cells to stimulate osteogenic differentiation. Bioactive scaffolds are typically comprised of natural components but often lack the manufacturability of synthetic materials. To circumvent this trade-off, we 3D printed materials comprised of decellularized bone (DCB) matrix particles combined with polycaprolactone (PCL) to create novel hybrid DCB:PCL scaffolds for bone regeneration...
October 10, 2016: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/27934940/accelerated-craniofacial-bone-regeneration-through-dense-collagen-gel-scaffolds-seeded-with-dental-pulp-stem-cells
#9
Frédéric Chamieh, Anne-Margaux Collignon, Benjamin R Coyac, Julie Lesieur, Sandy Ribes, Jérémy Sadoine, Annie Llorens, Antonino Nicoletti, Didier Letourneur, Marie-Laure Colombier, Showan N Nazhat, Philippe Bouchard, Catherine Chaussain, Gael Y Rochefort
Therapies using mesenchymal stem cell (MSC) seeded scaffolds may be applicable to various fields of regenerative medicine, including craniomaxillofacial surgery. Plastic compression of collagen scaffolds seeded with MSC has been shown to enhance the osteogenic differentiation of MSC as it increases the collagen fibrillary density. The aim of the present study was to evaluate the osteogenic effects of dense collagen gel scaffolds seeded with mesenchymal dental pulp stem cells (DPSC) on bone regeneration in a rat critical-size calvarial defect model...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27906843/comparison-of-resorbable-plating-systems-complications-during-degradation
#10
Dennis C Nguyen, Albert S Woo, Scott J Farber, Gary B Skolnick, Jenny Yu, Sybill D Naidoo, Kamlesh B Patel
INTRODUCTION: Several bioresorbable plating systems have become standard in pediatric craniosynostosis reconstruction. A comparison of these systems is needed to aid surgeons in the preoperative planning process. The authors aim to evaluate 1 institution's experience using Resorb-X by KLS Martin and Delta Resorbable Fixation System by Stryker (Stryker Craniomaxillofacial, Kalamazoo, MI). METHODS: A sample of patients with single-suture nonsyndromic craniosynostosis treated at St Louis Children's Hospital between 2007 and 2014 using either Resorb-X or Delta bioresorbable plating systems were reviewed...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27890230/soft-tissue-engineering
#11
REVIEW
Roderick Youngdo Kim, Sam Seoho Bae, Stephen Elliott Feinberg
There is a recognized need to reconstruct and restore complex craniomaxillofacial soft tissues. The objective of this article is to focus on the role that tissue engineering/regenerative medicine can play in addressing various barriers (vascularity, tissue bulk, volitional control, and esthetics) and impediments (timing, regional applicability/dissemination, and regulation by the US Food and Drug Administration) to optimal tissue reconstruction of complex soft tissue structures. We will use the lips as an example to illustrate our points...
February 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/27833708/surgical-treatment-of-orbital-blowout-fractures-complications-and-postoperative-care-patterns
#12
Matthew Shew, Michael P Carlisle, Guanning Nina Lu, Clinton Humphrey, J David Kriet
Orbital fractures are a common result of facial trauma. Sequelae and indications for repair include enophthalmos and/or diplopia from extraocular muscle entrapment. Alloplastic implant placement with careful release of periorbital fat and extraocular muscles can effectively restore extraocular movements, orbital integrity, and anatomic volume. However, rare but devastating complications such as retrobulbar hematoma (RBH) can occur after repair, which pose a risk of permanent vision loss if not addressed emergently...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27806754/-issues-confronted-with-biomaterials-research-and-development-and-market-access-in-craniomaxillofacial-field
#13
M Hu
There are a variety of biomedical materials applied in craniomaxillofacial and dental clinical practice, plastic surgery, otorhinolaryngology and neurosurgery. With the increasing investment for the biomedical materials study, considerable progress has been obtained in biomaterials research. But overall, the field of biomaterials in China is still in a backward state. The development of advanced manufacturing technology has put forward new demands for the research of biological materials and has expanded the application, but at present, there are few biomaterials that meet the requirements...
November 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27792101/a-craniomaxillofacial-surgical-assistance-workstation-for-enhanced-single-stage-reconstruction-using-patient-specific-implants
#14
Ryan J Murphy, Peter C Liacouras, Gerald T Grant, Kevin C Wolfe, Mehran Armand, Chad R Gordon
BACKGROUND: Craniomaxillofacial reconstruction with patient-specific, customized craniofacial implants (CCIs) is ideal for skeletal defects involving areas of aesthetic concern-the non-weight-bearing facial skeleton, temporal skull, and/or frontal-forehead region. Results to date are superior to a variety of "off-the-shelf" materials, but require a protocol computed tomography scan and preexisting defect for computer-assisted design/computer-assisted manufacturing of the CCI. The authors developed a craniomaxillofacial surgical assistance workstation to address these challenges and intraoperatively guide CCI modification for an unknown defect size/shape...
October 27, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27776320/assessment-of-mechanical-behavior-of-pla-composites-reinforced-with-mg-micro-particles-through-depth-sensing-indentations-analysis
#15
S C Cifuentes, E Frutos, R Benavente, V Lorenzo, J L González-Carrasco
This work deals with the mechanical characterization by depth-sensing indentation (DSI) of PLLA and PLDA composites reinforced with micro-particles of Mg (up to 15wt%), which is a challenging task since the indented volume must provide information of the bulk composite, i.e. contain enough reinforcement particles. The composites were fabricated by combining hot extrusion and compression moulding. Physico-chemical characterization by TGA and DSC indicates that Mg anticipates the thermal degradation of the polymers but does not compromise their stability during processing...
January 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27766488/radio-opaque-polyethylene-for-personalized-craniomaxillofacial-implants
#16
Marcin Kozakiewicz, Leszek Olbrzymek, Ludomir Stefanczyk, Marek Olszycki, Piotr Komorowski, Bogdan Walkowiak, Bartłomiej Konieczny, Michał Krasowski, Jerzy Sokołowski
OBJECTIVE: This study aimed to present a new possibility to create radio-opaque implant material for craniomaxillofacial reconstruction. MATERIALS AND METHODS: The test disks made of the own compound of polyethylenes with addiction of 2, 4, and 6 % of weight TiO2 was investigated for cytotoxicity [each group 15 disks respectively]. Next, computed tomography of the disks was performed in environment of muscle and fat. Hardness, tensile modulus and strength, and compressive modulus and strength were tested too...
October 20, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27752203/meta-analysis-of-etiology-and-its-clinical-and-radiological-correlation-in-cases-of-craniomaxillofacial-trauma
#17
Ritesh Kumar, Syed Saeed Ahmed, Gulam Sarwar Hashmi, Md Kalim Ansari, Sajjad Abdur Rahman
AIM: The present study was planned to investigate the etiology of injuries and to analyze correlation between clinical and radiological findings in cases of craniomaxillofacial trauma. STUDY DESIGN: An 18 months cross-sectional study was done and 325 patients with maxillofacial fractures were analyzed from January 2013 to June 2014 who reported to the department of oral and maxillofacial surgery, Aligarh, Uttar Pradesh. Data was recorded in a preformed case sheet which included: patient's demographic data, cause of injury, type of injury, treatment plan...
September 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/27729131/congenital-oral-synechia-and-ankyloblepharon-filiforme-adnatum-case-report-and-literature-review
#18
REVIEW
Lívia Bonjardim Lima, Luiz Fernando Barbosa de Paulo, Cláudia Jordão Silva, Vanessa Cristina Mendes, Paulo Cézar Simamoto-Júnior, Antônio Francisco Durighetto
INTRODUCTION: Congenital intraoral synechias are adhesions of intraoral structures involving soft tissue. These conditions and another anomaly called ankyloblepharon filiforme adnatum, which is partial fusion of the eyelid margins by bands of tissue, are rarely reported in the literature. The association of both anomalies of the craniomaxillofacial region is an even more unusual finding. PURPOSE: This article adds more information to the literature by reporting a case of a neonate with a rare association of bilateral synechia between the jaws, fusion of buccal mucosa to the ridges and between the tongue and palate, and ankyloblepharon filiforme adnatum in both eyes, without any other facial or systemic malformation...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27717818/craniofacial-resection-and-reconstruction-in-patients-with-recurrent-cancer-involving-the-craniomaxillofacial-region
#19
Wei-Liang Chen, Zhao-Hui Yang, Zhi-Quan Huang, Song Fan, Da-Ming Zhang, You-Yuan Wang
PURPOSE: Head and neck tumors that involve the craniomaxillofacial region are classified as stage IVb disease and are clinically challenging. In this study, the outcomes of craniofacial resection and craniofacial reconstruction in patients with recurrent malignant tumors involving the craniomaxillofacial region were evaluated. PATIENTS AND METHODS: This retrospective observational study was conducted from January 2008 to August 2015. Data collected for each patient included age, gender, tumor site, initial treatment, craniofacial resection, reconstruction flaps and complications after craniofacial resection, adjuvant treatment, and reported outcomes of craniofacial resection and craniofacial reconstruction...
September 13, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27717593/improved-rubin-bodner-model-for-the-prediction-of-soft-tissue-deformations
#20
Guangming Zhang, James J Xia, Michael Liebschner, Xiaoyan Zhang, Daeseung Kim, Xiaobo Zhou
In craniomaxillofacial (CMF) surgery, a reliable way of simulating the soft tissue deformation resulted from skeletal reconstruction is vitally important for preventing the risks of facial distortion postoperatively. However, it is difficult to simulate the soft tissue behaviors affected by different types of CMF surgery. This study presents an integrated bio-mechanical and statistical learning model to improve accuracy and reliability of predictions on soft facial tissue behavior. The Rubin-Bodner (RB) model is initially used to describe the biomechanical behavior of the soft facial tissue...
November 2016: Medical Engineering & Physics
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