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Craniofacial fractures

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https://www.readbyqxmd.com/read/28230707/low-cost-3d-printing-orbital-implant-templates-in-secondary-orbital-reconstructions
#1
Alison B Callahan, Ashley A Campbell, Carisa Petris, Michael Kazim
PURPOSE: Despite its increasing use in craniofacial reconstructions, three-dimensional (3D) printing of customized orbital implants has not been widely adopted. Limitations include the cost of 3D printers able to print in a biocompatible material suitable for implantation in the orbit and the breadth of available implant materials. The authors report the technique of low-cost 3D printing of orbital implant templates used in complex, often secondary, orbital reconstructions. METHODS: A retrospective case series of 5 orbital reconstructions utilizing a technique of 3D printed orbital implant templates is presented...
February 22, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28230587/everting-fracture-of-entire-frontal-bone-management-and-importance-of-preliminary-reconstruction
#2
Ken R Winston, Kathryn Beauchamp, Yasuaki Harasaki
A 34-year-old woman with severe craniofacial trauma, which included eversion of the entire frontal bone, survived with high-quality functional and cosmetic results as a consequence of efficient and aggressive action by emergency technicians and physicians. Early preliminary steps of craniofacial reconstruction provided a structural foundation that facilitated this outcome.
February 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28210411/carotid-cavernous-fistula-as-a-complication-of-panfacial-fracture-case-report-11-years-after-the-surgery
#3
Sylvio Luiz Costa de Moraes, Alexandre Maurity de Paula Afonso, Roberto Gomes Dos Santos, Ricardo Pereira Mattos, Bruno Gomes Duarte
The carotid-cavernous fistula (CCF) is a rare complication in patients victimized by craniofacial trauma. It involves multidisciplinary medical action. Owing to its potential complications, it is essential that maxillofacial surgery and neurosurgery specialists diagnose this condition so that appropriate treatment can be performed. The authors present a report of a case 11 years after the surgery.
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28210407/a-single-center-review-of-radiologically-diagnosed-maxillofacial-fractures-etiology-and-distribution
#4
Jordan N Halsey, Ian C Hoppe, Mark S Granick, Edward S Lee
The etiology of fractures of the maxillofacial skeleton varies among studies, with motor vehicle accidents and assaults oftentimes the most common. The number of males outnumbers females throughout most studies. Fractures of the zygoma, orbit, and mandible are usually cited as most common fracture types. This study examines a single center's experience with regards to etiology and distribution of fractures. A retrospective review of all radiologically confirmed facial fractures in a level 1 trauma center in an urban environment was performed for the years 2000 to 2012...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28210405/titanium-clamps-for-a-simple-low-profile-autologous-osteosynthesis-in-the-reconstruction-of-posttraumatic-craniofacial-convexital-skeletal-disruption
#5
Amos Olufemi Adeleye, Toluyemi Adefolarin Malomo
Attempts at reconstruction of posttraumatic craniofacial defects (PTCDs) can be a challenge in low-resource practice areas of the world where the needed biomaterials are logistically beyond reach. A simple low-profile technique of autologous osteosynthesis for PTCD using the titanium clamps is presented in this report. In addition, a 6-year prospective database on a consecutive cohort of patients who underwent this procedure was analyzed for clinical, functional, and aesthetic outcomes, both in-hospital and at midterm follow-up...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28202368/the-use-of-virtual-surgical-planning-and-navigation-in-the-treatment-of-orbital-trauma
#6
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/28119180/teriparatide-attenuates-scarring-around-murine-cranial-bone-allograft-via-modulation-of-angiogenesis
#7
Doron Cohn Yakubovich, Uzi Eliav, Eran Yalon, Yeshai Schary, Dmitriy Sheyn, Galen Cook-Wiens, Shuting Sun, Charles E McKenna, Shaya Lev, Alexander M Binshtok, Gadi Pelled, Gil Navon, Dan Gazit, Zulma Gazit
Nearly all bone fractures in humans can deteriorate into a non-union fracture, often due to formation of fibrotic tissue. Cranial allogeneic bone grafts present a striking example: although seemingly attractive for craniofacial reconstructions, they often fail due to fibrosis at the host-graft junction, which physically prevents the desired bridging of bone between the host and graft and revitalization of the latter. In the present study we show that intermittent treatment with recombinant parathyroid hormone-analogue (teriparatide) modulates neovascularization feeding in the graft surroundings, consequently reducing fibrosis and scar tissue formation and facilitates osteogenesis...
January 21, 2017: Bone
https://www.readbyqxmd.com/read/28118189/a-rare-complication-of-infraorbital-nerve-hyperesthesia-in-surgically-repaired-orbital-fracture-patients
#8
Seong Eun Cho, Ho Seong Shin, Min Sung Tak, Sang Gue Kang, Yong Seok Lee, Hyun Sung Kim, Chul Han Kim
Injury to the peripheral sensory branches of the trigeminal nerve can follow a wide variety of craniofacial injuries. Many patients with facial fractures complain about the symptom of numbness to the distribution of injured nerve, which is indicative of hypoesthesia. Hyperesthesia involving the infraorbital nerve is rare in comparison to hypoesthesia secondary to facial trauma. The authors report on 2 patients with infraorbital nerve hyperesthesia in surgically repaired orbital fracture patients. Surgical decompression of the infraorbital nerve led to rapid resolution of hyperesthesia...
January 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28118187/might-trauma-be-a-triggering-factor-for-craniofacial-fibrous-dysplasia
#9
Mehmet Onur Yüksel, Mehmet Sabri Gürbüz, Hilmi Onder Okay, Mehmet Esref Kabalar
Fibrous dysplasia (FD) is a rare, benign disease of unclear etiology where normal bone is replaced with abnormal fibrous and weak osseous tissue. Any bone of the skeleton might be involved but skull is one of the most commonly affected sites. Fibrous dysplasia is known to be caused by a genetic mutation leading to inappropriate proliferation and differentiation of osteoblastic cells. However; it is not known whether any triggering factor exists which might contribute to this genetic mutation. The authors postulated that trauma might be a triggering factor for this disease...
January 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28110067/poly-glycerol-sebacate-elastomer-supports-bone-regeneration-by-its-mechanical-properties-being-closer-to-osteoid-tissue-rather-than-to-mature-bone
#10
S H Zaky, K W Lee, J Gao, A Jensen, K Verdelis, Y Wang, A J Almarza, C Sfeir
: Mechanical load influences bone structure and mass. Arguing the importance of load-transduction, we investigated the mechanisms inducing bone formation using an elastomeric substrate. We characterized Poly (glycerol sebacate) (PGS) in-vitro for its mechanical properties, compatibility with osteoprogenitor cells regarding adhesion, proliferation, differentiation under compression versus static cultures and in-vivo for the regeneration of a rabbit ulna critical size defect. The load-transducing properties of PGS were compared in-vitro to a stiffer poly lactic-co- glycolic-acid (PLA/PGA) scaffold of similar porosity and interconnectivity...
January 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28106692/use-of-resorbable-fixation-system-in-pediatric-facial-fractures
#11
Frankie K Wong, Saleigh Adams, Donald A Hudson, Wayne Ozaki
INTRODUCTION: Resorbable fixation system (RFS) is an alternative to titanium in open reduction and internal fixation of pediatric facial fractures. METHODS: This study retrospectively reviewed all medical records in a major metropolitan pediatric hospital in Cape Town, South Africa from September 2010 through May 2014. Inclusion criteria were children under the age of 13 with facial fractures who have undergone open reduction and internal fixation using RFS. Intraoperative and postoperative complications were reviewed...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005765/functional-reconstruction-in-mandibular-avulsion-injuries
#12
Yoav Leiser, Dekel Shilo, Amir Wolff, Adi Rachmiel
The present report describes the planning and surgery as well as pitfalls and management of a patient with a near total mandibular avulsion injury that was rehabilitated using three-dimensional (3D) laser printing of a titanium lower jaw. Laser-sintering involves zapping layers of powdered metal to recreate a 3D implantable skeletal defect. The process involves using either mirror imaging of the unaffected side or using archival image database of healthy individuals. A 25-year-old man presented with a gunshot injury that left him with a near total avulsed mandible...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005754/cranioplasty-review-of-materials
#13
Bruno Zanotti, Nicola Zingaretti, Angela Verlicchi, Massimo Robiony, Alex Alfieri, Pier Camillo Parodi
Cranioplasty remains a difficult procedure for all craniofacial surgeons, particularly when concerning the reconstruction of large lacunae in the skull. Considering the significant clinical and economic impact of the procedure, the search for materials and strategies to provide more comfortable and reliable surgical procedures is one of the most important challenges faced by modern craniofacial medicine.The purpose of this study was to compare the available data regarding the safety and clinical efficacy of materials and techniques currently used for the reconstruction of the skull...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27898160/haptic-feedback-improves-surgeons-user-experience-and-fracture-reduction-in-facial-trauma-simulation
#14
Sabine Girod, Sara C Schvartzman, Dyani Gaudilliere, Kenneth Salisbury, Rebeka Silva
Computer-assisted surgical (CAS) planning tools are available for craniofacial surgery, but are usually based on computer-aided design (CAD) tools that lack the ability to detect the collision of virtual objects (i.e., fractured bone segments). We developed a CAS system featuring a sense of touch (haptic) that enables surgeons to physically interact with individual, patient-specific anatomy and immerse in a three-dimensional virtual environment. In this study, we evaluated initial user experience with our novel system compared to an existing CAD system...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27870351/review-of-in-vivo-bone-strain-studies-and-finite-element-models-of-the-zygomatic-complex-in-humans-and-nonhuman-primates-implications-for-clinical-research-and-practice
#15
Felippe Bevilacqua Prado, Alexandre Rodrigues Freire, Ana Cláudia Rossi, Justin A Ledogar, Amanda L Smith, Paul C Dechow, David S Strait, Tilman Voigt, Callum F Ross
The craniofacial skeleton is often described in the clinical literature as being comprised of vertical bony pillars, which transmit forces from the toothrow to the neurocranium as axial compressive stresses, reinforced transversely by buttresses. Here, we review the literature on bony microarchitecture, in vivo bone strain, and finite-element modeling of the facial skeleton of humans and nonhuman primates to address questions regarding the structural and functional existence of facial pillars and buttresses...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27857528/mccune-albright-syndrome-association-of-fibrous-dysplasia-caf%C3%A3-au-lait-skin-spots-and-hyperthyroidism-case-report
#16
Iulian Raus, Roxana Elena Coroiu
McCune-Albright syndrome is a rare sporadic disease characterized by bone fibrous dysplasia, café-au-lait skin spots and a variable association of hyperfunctional endocrine disorders. Fibrous dysplasia (FD), which can involve the craniofacial, axial, and appendicular skeleton, may range from an isolated, asymptomatic monostotic lesion to a severe disabling polyostotic disease involving the entire skeleton. A twenty-five-year old male patient presented to our clinic with recently developed heart palpitations...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27833704/superior-orbital-fissure-syndrome-in-lateral-orbital-wall-fracture-management-and-classification-update
#17
REVIEW
Claudio Caldarelli, Rodolfo Benech, Caterina Iaquinta
The superior orbital fissure syndrome (SOFS) is an uncommon complication rarely occurring in association with craniofacial trauma. Work-up of a patient injured by a traumatic right orbitozygomatic complex fracture and SOFS is presented. Accurate computed tomography scan and three-dimensional reconstruction showed a medial displacement of the lateral orbital wall, compressing the right superior orbital fissure (SOF), without intraorbital bone fragment displacement or hemorrhage. Imaging also revealed a frontosphenotemporal fracture, according to Pellerin et al, that is, frequently associated with visual impairment...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27797885/trabecular-bone-score-and-incident-fragility-fracture-risk-in-adults-with-reduced-kidney-function
#18
Kyla L Naylor, Jerilynn Prior, Amit X Garg, Claudie Berger, Lisa Langsetmo, Jonathan D Adachi, David Goltzman, Christopher S Kovacs, Robert G Josse, William D Leslie
BACKGROUND AND OBJECTIVES: Trabecular bone score is a gray-level textural measure obtained from dual energy x-ray absorptiometry lumbar spine images that provides information independent of areal bone mineral density. The association between trabecular bone score and incident fractures in adults with reduced kidney function and whether this association differs from that of adults with normal kidney function are unknown. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We included 1426 participants ages ≥40 years old (mean age of 67 years) in the community-based Canadian Multicentre Osteoporosis Study...
November 7, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27783770/risk-factors-associated-with-the-failure-of-miniscrews-a-ten-year-cross-sectional-study
#19
Ana Cláudia Moreira Melo, Augusto Ricardo Andrighetto, Suélen Darab Hirt, Ana Luiza Melo Bongiolo, Siddhartha Uhrigshardt Silva, Marcos André Duarte da Silva
The aims of this study were to identify (1) patient-related factors (sex, age, craniofacial pattern and smoking habit), (2) miniscrews implants (MSI)-related factors (length and diameter) and (3) location-related factors [bone (maxilla or mandible) and area (buccal, lingual and alveolar ridge)] that may be associated with MSI loss of stability. A total of 1356 MSI were installed in 570 patients (423 females and 147 males) with mean age of 42.7 during a 10-year period and were clinically evaluated once a month until the end of the proposed movement...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27723094/blunt-craniofacial-trauma-as-a-manifestation-of-excited-delirium-caused-by-new-psychoactive-substances
#20
Roger W Byard, Matthew Cox, Peter Stockham
The body of a 19-year-old male was found apparently concealed underneath bushes with recent head and facial trauma, and multiple superficial abrasions. Subsequently, it was discovered that the decedent had been running into objects and buildings following the ingestion the evening before of what was thought to be lysergic acid diethylamide (LSD). Blood staining of a nearby wall close to where the body was lying was in keeping with the described behavior. Toxicology revealed 3,4-methylenedioxymethamphetamine (Ecstasy), in addition to two only recently available drugs 2-(4-bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine, (25B-NBOMe), and 1-(3,4-methylenedioxyphenyl)-2-(1-pyrrolidinyl)-1-butanone, (MDPBP)...
November 2016: Journal of Forensic Sciences
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