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https://www.readbyqxmd.com/read/29657134/early-mortality-and-morbidity-following-a-type-ii-odontoid-fracture-in-the-elderly
#1
Hassaan Q Sheikh, Michael Athanassacopoulos, Arpan B Doshi, Lee Breakwell, Ashley Cole, Antony Louis Rex Michael, Neil Chiverton
BACKGROUND: We aimed to analyse the rates of early and causes of death in patients aged over 65 years with a type II odontoid fracture. METHODS: A consecutive series of 93 patients with a type II fracture of the odontoid process was retrospectively identified. Data collected included patient demographics, co-morbidities, associated injuries, neurological injury, date of death and cause of death. Mean patient age was 81. Five patients (5%) were treated operatively while the rest were treated in a hard cervical collar...
April 12, 2018: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/29649032/airway-management-practice-in-adults-with-an-unstable-cervical-spine-the-harborview-medical-center-experience
#2
Michael G Holmes, Armagan Dagal, Bryan A Feinstein, Aaron M Joffe
BACKGROUND: Airway management in the presence of acute cervical spine injury (CSI) is challenging. Because it limits cervical spine motion during tracheal intubation and allows for neurological examination after the procedure, awake fiberoptic bronchoscopy (FOB) has traditionally been recommended. However, with the widespread availability of video laryngoscopy (VL), its use has declined dramatically. Our aim was to describe the frequency of airway management techniques used in patients with CSI at our level I trauma center and report the incidence of neurological injury attributable to airway management...
April 11, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29608449/conservative-treatment-of-hangman-variant-fractures
#3
Thomas E Niemeier, Sakthevil R Manoharan, Amrita Mukherjee, Steven M Theiss
STUDY DESIGN: This is retrospective cohort study. OBJECTIVE: Investigate the stability of patients with hangman variant fractures and outcomes of treatment with external immobilization. SUMMARY OF BACKGROUND DATA: Traumatic spondylolisthesis of the axis (C2) with the fracture extending into the vertebral body has been incompletely characterized. Small case series have showed high rates of neurological injury and cite difficulty treating closed due to greater instability secondary to extensive ligamentous injury...
March 31, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29483989/a-yellow-submarine-in-dermoscopy
#4
Francesca Satolli, Miriam Rovesti, Alfredo Zucchi, Marco Gandolfi, Claudio Feliciani, Georgi Tchernev, Uwe Wollina, Serena Gianfaldoni, Torello Lotti
BACKGROUND: Histiocytic sarcoma (HS) is an extremely rare, non-Langerhans cell tumor. HS affects especially adults, its etiology is unknown yet. Skin could be interested by papules or nodules, single or multiple. CASE REPORT: A Caucasian man in his late 40s came to our clinic for a naevi evaluation. During the visit, a rose papulonodular lesion was observed in the lumbar region. This lesion was completely asymptomatic, and it had been there for an indefinite period...
January 25, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29305689/effect-of-nanostructured-zirconium-dioxide-incorporation-in-an-experimental-adhesive-resin
#5
Camila Provenzi, Fabrício Mezzomo Collares, Marla Cuppini, Susana Maria Werner Samuel, Annelise Kopp Alves, Carlos Pérez Bergmann, Vicente Castelo Branco Leitune
OBJECTIVES: The aim of this study was to evaluate the influence of nanostructured zirconium dioxide incorporation in an experimental adhesive resin. METHODS: ZrO2 particles were characterized by X-ray diffraction (XRD), micro-Raman spectroscopy and Brunauer-Emmett-Teller (B.E.T). Experimental adhesive resins were formulated with 0, 0.5, 1, 4.8, and 9.1% ZrO2 in weight. The adhesives were evaluated based on degree of conversion (DC), radiopacity, softening in solvent and microtensile bond strength (μTBS) 24 h and after 1 year of aging...
January 5, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29258696/residual-stress-of-porcelain-fused-to-zirconia-3-unit-fixed-dental-prostheses-measured-by-nanoindentation
#6
Vinicius P Fardin, Estevam A Bonfante, Paulo G Coelho, Malvin N Janal, Nick Tovar, Lukasz Witek, Dimorvan Bordin, Gerson Bonfante
OBJECTIVE: To evaluate the residual stress (nanoindentation based on hardness) of fatigued porcelain-fused to zirconia 3-unit fixed dental prostheses (FDP) with different framework designs. METHODS: Twenty maxillary 3-unit FDP replacing second-premolar (pontic) were fabricated with conventional framework-design (even-thickness of 0.5mm and 9mm2 connector area) and modified framework-design (thickness of 0.5mm presenting lingual collar connected to proximal struts and 12mm2 connector area)...
February 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29179604/anterior-screw-fixation-in-type-ii-odontoid-fracture-in-an-18-month-old-girl-a-case-report-and-review-of-the-literature
#7
Majid Reza Farrokhi, Hamid Rezaei, Farnaz Farrokhi
Odontoid fractures are among the rare cervical spine injuries in pediatric population and thus the optimal management of these injuries is controversial. The increasing trend in road traffic accidents and improvement in diagnostic modalities has led to an increased detection of odontoid fractures in pediatric population. We herein report type II odontoid fracture in an 18-month-old girl after falling off the motorcycle leading to hyperextension and flexion injury. She was successfully treated with anterior odontoid screw fixation followed by immobilization with hard collar for 2 months...
November 28, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29107135/influence-of-the-addition-of-microsphere-load-amoxicillin-in-the-physical-chemical-and-biological-properties-of-an-experimental-endodontic-sealer
#8
Nélio Bairros Dornelles, Fabrício Mezzomo Collares, Bruna Genari, Gabriela de Souza Balbinot, Susana Maria Werner Samuel, Rodrigo Alex Arthur, Fernanda Visioli, Silvia Stanisçuaski Guterres, Vicente Castelo Branco Leitune
AIM: To develop an endodontic sealer with amoxicillin-loaded microsphere and to evaluate its properties. METHODS: Experimental sealer was obtained by mixing 70wt% UDMA, 15wt% GDMA and 15wt% BISEMA. In addition, CQ, DHEPT and PB were incorporated at 1 mol% and 0.01wt% BHT and 10wt% YbF3. Microspheres were produced by drying in spray dryer. Two experimental groups (10 and 15wt% of microspheres) and one control group (without microspheres) were formulated. The sealers were evaluated for the degree of conversion (n=3), degradation in solvent (n=3), drug release profile (n=3), antimicrobial activity (n=3), flow (n=3), film thickness (n=3) and cytotoxicity (n=3)...
January 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/28932007/the-effect-of-shoe-type-on-static-and-dynamic-balance-during-treadmill-walking-in-young-healthy-women
#9
Mi-Kyoung Kim, Byung-Sun Kong, Kyung-Tae Yoo
[Purpose] The purpose of this study was to analyze the effect of various shoes on the static and dynamic balance of young women in their 20s. [Subjects and Methods] The subjects of the study were 15 healthy young women and repeated measured design. The subjects walked on the treadmill at a speed of 4 km/h for 30 minutes wearing three types of shoes: sneaker, rain boots, and combat boots. Balance was measured by a Romberg test and a limits of stability test. One-way ANOVA was used for statistical analysis...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28826754/cost-effectiveness-of-magnetic-resonance-imaging-in-cervical-spine-clearance-of-neurologically-intact-patients-with-blunt-trauma
#10
Xiao Wu, Ajay Malhotra, Bertie Geng, Renu Liu, Khalid Abbed, Howard P Forman, Pina Sanelli
STUDY OBJECTIVE: Use of magnetic resonance imaging (MRI) for cervical clearance after a negative cervical computed tomography (CT) scan result in alert patients with blunt trauma who are neurologically intact is not infrequent, despite poor evidence in regard to its utility. The objective of this study is to evaluate the utility and cost-effectiveness of using MRI versus no follow-up in this patient population. METHODS: A modeling-based decision analysis was performed during the lifetime of a 40-year-old individual from a societal perspective...
January 2018: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28816879/atlas-fractures-and-atlas-osteosynthesis-a-comprehensive-narrative-review
#11
Frank Kandziora, Jens R Chapman, Alexander R Vaccaro, Gregory D Schroeder, Matti Scholz
Most atlas fractures are the result of compression forces. They are often combined with fractures of the axis and especially with the odontoid process. Multiple classification systems for atlas fractures have been described. For an adequate diagnosis, a computed tomography is mandatory. To distinguish between stable and unstable atlas injury, it is necessary to evaluate the integrity of the transverse atlantal ligament (TAL) by magnetic resonance imaging and to classify the TAL lesion. Studies comparing conservative and operative management of unstable atlas fractures are unfortunately not available in the literature; neither are studies comparing different operative treatment strategies...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28728916/effects-of-spinal-immobilization-at-a-20%C3%A2-angle-on-cerebral-oxygen-saturations-measured-by-invos%C3%A2
#12
Gökhan Aksel
BACKGROUND AND AIM OF THE STUDY: In this study, we aimed to investigate whether performing the immobilization at 20° instead of 0° changes cerebral oxygenation. MATERIALS AND METHODS: 33 volunteers were put in a hard cervical collar and backboard at 0° and immobilized for 30min. The cerebral oxygen saturations of the volunteers were measured at 1, 5, and 30min after the start of the procedure (Group 1). The volunteers were asked to return the day after the Group 1 procedure but at the same time...
January 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28721995/comparative-evaluation-of-laser-microtextured-implant-versus-machined-collar-implant-for-soft-and-hard-tissue-attachment-a-clinical-and-radiological-study
#13
Saroj Kumar Rath, Manab Kosala, Ankit Gupta
BACKGROUND: Various mechanical modifications in the collar region of endosseous implants is a challenge for better performance and osseointegration. Here is a comparative evaluation being carried out to find out the effect of the machined collar (MC) and Laser-Lok (LL)-modified titanium implants on the success of implants being commonly advocated in partially edentulous among serving personnel and their families. MATERIALS AND METHODS: Twenty-four patients with appropriate inclusion and exclusion criteria were selected for placement of Biohorizons MC and LL implants in 12 cases each...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28717790/soft-and-hard-tissue-response-%C3%A2-to-an-implant-with-a-convergent-%C3%A2-collar-in-the-esthetic-area-%C3%A2-preliminary-report-at-18-months
#14
Luigi Canullo, Marco Tallarico, Guillermo Pradies, Fabio Marinotti, Ignazio Loi, Roberto Cocchetto
AIM: The purpose of this prospective cohort study was to investigate, over an 18-month period, soft and hard tissue response to a transmucosal implant with a convergent collar inserted in the anterior maxillary esthetic area. MATERIALS AND METHODS: From June 2013 to January 2014, 14 consecutive patients were enrolled (7 men and 7 women; mean age 63.7 ± 14 years) with 20 implants, needing at least one implant-supported restoration between the canines in the maxillary anterior esthetic area...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28642924/influence-of-niobium-pentoxide-addition-on-the-properties-of-glass-ionomer-cements
#15
Isadora Martini Garcia, Vicente Castelo Branco Leitune, Gabriela De Souza Balbinot, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
Objective: To determine the influence of niobium pentoxide (Nb2O5) addition on the physical and chemical properties of glass ionomer cements (GICs). Materials and methods: Five, 10 or 20 wt.% of Nb2O5 were incorporated into commercial GICs (Maxxion R, Vitro Molar, Vitro Fil R) and one group of each GIC remained without Nb2O5 (control groups). The GICs were evaluated by Knoop hardness, compressive strength, acid erosion, particle size and radiopacity. Data were analyzed by two-way ANOVA followed by Tukey's test...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28637303/management-of-acute-unilateral-nondisplaced-subaxial-cervical-facet-fractures
#16
Aditya Vedantam, Jared Steven Fridley, Jovany Cruz Navarro, Shankar P Gopinath
BACKGROUND: Few studies have focused on the management of patients with nondisplaced cervical facet fractures. OBJECTIVE: To determine the rate of successful nonoperative management and risk factors for instability in patients with acute traumatic, unilateral, nondisplaced cervical facet fractures. METHODS: We reviewed patients with single or multilevel unilateral nondisplaced or minimally displaced subaxial cervical facet fractures between 2008 and 2014...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28525472/a-comparison-of-implants-used-in-open-door-laminoplasty-structural-rib-allografts-versus-metallic-miniplates
#17
Ehsan Tabaraee, Praveen Mummaneni, Amir Abdul-Jabbar, David Shearer, Esha Roy, Beejal Amin, Christopher Ames, Shane Burch, Vedat Deviren, Sigurd Berven, Serena Hu, Dean Chou, Bobby K Tay
STUDY DESIGN: A retrospective case-controlled study. SUMMARY OF BACKGROUND DATA: Open-door laminoplasty has been successfully used to address cervical spondylotic myelopathy and ossification of the posterior longitudinal ligament. Two common implants include rib allograft struts and metallic miniplates. OBJECTIVE: The goals of this study were to compare outcomes, complications, and costs associated with these 2 implants. METHODS: A retrospective review was done on 51 patients with allograft struts and 55 patients with miniplates...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28513783/influence-of-addition-of-2-methacryloyloxy-ethyl-trimethylammonium-chloride-to-an-experimental-adhesive
#18
Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune, Patrícia Franken, Clarissa Fatturi Parollo, Fabrício Aulo Ogliari, Susana Maria Werner Samuel
The aim of this study was to develop an experimental adhesive with addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (METAC) and to evaluate its mechanical and biological properties and its in vitro antibacterial activity. An experimental adhesive resin was formulated with Bis-GMA, TEGDMA, and HEMA. The antibacterial monomer was added at concentrations of 1%, 2.5%, and 5% (METAC groups). A group without METAC addition was used as control. The experimental adhesives were evaluated as to their antibacterial potential against Streptococcus mutans, degree of conversion, and softening in ethanol for 2 hours...
May 4, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28492749/triazine-compound-as-copolymerized-antibacterial-agent-in-adhesive-resins
#19
Priscila Raquel Schiroky, Vicente Castelo Branco Leitune, Isadora Martini Garcia, Fabrício Aulo Ogliari, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
The aim of this study was to formulate and evaluate an experimental adhesive resin with the addition of 1,3,5-triacryloylhexahydro-1,3,5-triazine at different concentrations. Experimental adhesive resins were obtained by mixing 50% wt bisphenol A glycol dimethacrylate (BisGMA), 25% wt triethylene glycol dimethacrylate (TEGDMA), 25% wt 2-hydroxyethyl methacrylate (HEMA) and photoinitiator system. The triazine compound was added in 1, 2.5 and 5% wt to a base adhesive resin and one group remained with no triazine as control group...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28393275/traumatic-multiple-cervical-spine-injuries-in-a-patient-with-osteopetrosis-and-its-management
#20
Ashok Keshav Rathod, Rakesh Padmakar Dhake, Mandar Deepak Borde
STUDY DESIGN: Single case report. OBJECTIVE/PURPOSE: To report multiple level fractures of cervical spine in a patient with osteopetrosis and its management. Osteopetrosis is a rare inherited condition characterized by defective remodeling resulting in hard and brittle bones with diffuse osteosclerosis. Fractures of spine are rare as compared to the common long bone fractures. We report a case of traumatic multiple level fractures of cervical spine in osteopetrosis and its management which has rarely been reported in the literature before, if any...
May 2017: European Spine Journal
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