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https://www.readbyqxmd.com/read/27906843/comparison-of-resorbable-plating-systems-complications-during-degradation
#1
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...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27890230/soft-tissue-engineering
#2
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
#3
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
#4
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
#5
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
#6
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...
September 21, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27766488/radio-opaque-polyethylene-for-personalized-craniomaxillofacial-implants
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/27712825/craniomaxillofacial-trauma
#12
Sven-Olrik Streubel, David M Mirsky
Facial trauma causes significant of morbidity in the United States. With injuries varying widely, the clinical benefits of antibiotics use in facial fracture treatment are not easily determined. The pediatric population is more predisposed to craniofacial trauma secondary to their increased cranial mass to body ratio. All patients with traumatic injury should be assessed according to the Advanced Trauma Life Support protocol. This article discusses the types and prevalence of injuries and approaches to management...
November 2016: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27612737/development-of-a-methacrylate-terminated-plga-copolymer-for-potential-use-in-craniomaxillofacial-fracture-plates
#13
Sarah J Upson, Simon W Partridge, Ion Tcacencu, David A Fulton, Ian Corbett, Matthew J German, Kenneth W Dalgarno
We synthesised methacrylate-terminated PLGA (HT-PLGA, 85:15 LA:GA, 169kDa), for potential use as an adhesively attached craniomaxillofacial fracture fixation plate. The in vitro degradation of molecular weight, pH and flexural modulus were measured over 6weeks storage in PBS at 37°C, with commercially available high (225kDa, H-PLGA) and low (116kDa, L-PLGA) molecular weight 85:15 PLGAs used as comparators. Molecular weights of the materials reduced over 6weeks, HT-PLGA by 48%, H-PLGA by 23% and L-PLGA by 81%...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27596014/corpus-hippocraticum-historical-source-of-treatment-of-craniomaxillofacial-trauma
#14
P Stathopoulos
The works of Hippocrates known in the Western World as the Corpus Hippocraticum have dominated medical thought and surgical practice for centuries. A substantial part of the Hippocratic Collection is dedicated to the description of injuries pertinent to Cranio-maxillofacial surgery and their management. Hippocrates has reached this level of surgical skill despite the limited pre-recorded knowledge and the restriction to perform post-mortem dissections.
September 2, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27556032/approaches-to-peripheral-nerve-repair-generations-of-biomaterial-conduits-yielding-to-replacing-autologous-nerve-grafts-in-craniomaxillofacial-surgery
#15
REVIEW
Robert Gaudin, Christian Knipfer, Anders Henningsen, Ralf Smeets, Max Heiland, Tessa Hadlock
Peripheral nerve injury is a common clinical entity, which may arise due to traumatic, tumorous, or even iatrogenic injury in craniomaxillofacial surgery. Despite advances in biomaterials and techniques over the past several decades, reconstruction of nerve gaps remains a challenge. Autografts are the gold standard for nerve reconstruction. Using autografts, there is donor site morbidity, subsequent sensory deficit, and potential for neuroma development and infection. Moreover, the need for a second surgical site and limited availability of donor nerves remain a challenge...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27548828/resorbable-mesh-as-a-containment-system-in-mandibular-reconstruction
#16
Al Haitham Al Shetawi, Michael D Turner
The recent advances seen in computer technologies and biomaterials have changed the approach to craniomaxillofacial surgery. In this report, the authors describe the technique of using a resorbable containment system for bone graft in a large mandibular reconstruction patient. The authors provide a patient report with a 1-year follow-up.
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27536331/fabrication-of-a-cranial-prosthesis-combined-with-an-ocular-prosthesis-using-rapid-prototyping-a-case-report
#17
Gayatri Shankaran, Suryakant Chhagan Deogade, Rajesh Dhirawani
Rapid prototyping (RP) is a technique of manufacturing parts by the additive layer manufacturing technology; where, a three-dimensional (3D) model created in a computer aided design (CAD) system is sectioned into 2D profiles, which are further constructed by RP layer by layer. Its use is not limited to industrial or engineering fields and has extended to the medical field for the manufacturing of custom implants and prostheses, the study of anatomy and surgical planning. Nowadays, dentists are more frequently encountered with the individuals affected with craniofacial defects due to trauma...
January 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/27527678/maxillofacial-trauma-underestimation-of-cervical-spine-injury
#18
Waldemar Reich, Alexey Surov, Alexander Walter Eckert
Undiagnosed cervical spine injury can have devastating results. The aim of this study was to analyse patients with primary maxillofacial trauma and a concomitant cervical spine injury. It is hypothetised that cervical spine injury is predictable in maxillofacial surgery. A monocentric clinical study was conducted over a 10-year period to analyse patients with primary maxillofacial and associated cervical spine injuries. Demographic data, mechanism of injury, specific trauma and treatments provided were reviewed...
September 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27527677/a-self-reinforcing-biodegradable-implant-made-of-poly-%C3%A9-caprolactone-calcium-phosphate-ceramic-composite-for-craniomaxillofacial-fracture-fixation
#19
Chang-Chin Wu, Yuh-Feng Tsai, Li-Ho Hsu, Jo-Ping Chen, Shoichiro Sumi, Kai-Chiang Yang
PURPOSE: Biodegradable polymer fixators have been used widely in oral and maxillofacial surgery for fracture management. However, short-comings such as insufficient mechanical strength, inappropriate degradation time, lack of radiolucency, and foreign body reactions during bone remodeling remain. MATERIAL AND METHODS: In this study, calcium phosphate ceramic (CPC, including tricalcium phosphate [TCP] and tetracalcium phosphate/dicalcium phosphate [TTCP/DCP]) and poly(ε-caprolactone) (PCL) were used to fabricate biodegradable orthopedic fixation devices...
September 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27516847/orbital-osteoblastoma-technical-innovations-in-resection-and-reconstruction-using-virtual-surgery-simulation
#20
REVIEW
Giorgio Novelli, Marco Gramegna, Gabriele Tonellini, Gabriella Valente, Pietro Boni, Alberto Bozzetti, Davide Sozzi
Osteoblastoma is a benign tumor of bone, representing less than 1% of bone tumors. Craniomaxillofacial localizations account for up to 15% of the total and frequently involve the posterior mandible. Endo-orbital localization is very rare, with most occurring in young patients. Very few of these tumors become malignant. Orbital localization requires radical removal of the tumor followed by careful surgical reconstruction of the orbit to avoid subsequent aesthetic or functional problems. Here, we present a clinical case of this condition and describe a surgical protocol that uses and integrates state-of-the art technologies to achieve orbital reconstruction...
September 2016: Craniomaxillofacial Trauma & Reconstruction
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