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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
#1
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/28110030/high-morbidity-and-mortality-after-lower-extremity-injuries-in-malawi
#2
Maganizo B Chagomerana, Jared Tomlinson, Sven Young, Mina C Hosseinipour, Leonard Banza, Clara N Lee
INTRODUCTION: A lower extremity injury can be a devastating event in low-income countries due to limited access to surgical care. Its incidence, treatment patterns, and outcomes, however, have not been well-described. METHODS: We prospectively enrolled all patients admitted with lower extremity trauma to a tertiary hospital in Lilongwe, Malawi between October 2010 and September 2011. Patients with a lower extremity injury but primarily admitted for unrelated reasons were excluded...
January 18, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28109486/a-population-based-analysis-of-the-implementation-of-pediatric-facemasks-in-girls-youth-lacrosse
#3
Andrew Walls, David Kasle, Nicole Aaronson, Earl Harley, Erik Waldman
OBJECTIVE: To determine the incidence, relative risk reduction, odds ratio and absolute risk reduction of head and ear injuries associated with the implementation of pediatric facial eye guards in lacrosse events. STUDY DESIGN: Cross Sectional Review of a National Database. STUDY LOCATION: National Emergency Injury Survelliance System. METHODS: Our group retrospectively reviewed a nationwide sampling estimate of 809 patients who presented to emergency rooms with head and ear injuries during lacrosse events...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28109485/ampleness-of-head-movements-of-children-and-adolescents-with-sensorineural-hearing-loss
#4
Renato de Souza Melo
INTRODUCTION: Head movements are controlled by the vestibular system. Children with sensorineural hearing loss can present restrictions in ampleness of head movements due to damage in the vestibule-cochlear systems, resulting from injury in the inner ear. OBJECTIVE: To evaluate the ampleness of head movements of children with normal hearing and children with sensorineural hearing loss and compare data between groups. METHODS: Cross-sectional study that evaluated the ampleness of head movements of 96 students, being 48 with normal hearing and 48 with sensorineural hearing loss, of both sexes, with aged between 7 and 18 years old...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28108854/elective-icp-monitoring-how-long-is-long-enough
#5
S D Thompson, A Coutts, C L Craven, A K Toma, L W Thorne, L D Watkins
BACKGROUND: Intracranial pressure monitoring is commonly undertaken to assess and manage acute patients following head injury. However, ICP monitoring can also be a useful diagnostic tool in the management of CSF dynamics in elective patients. To date, there is little published research to suggest how long these elective patients require ICP monitoring in order to gain an accurate picture of a patient's ICP dynamics. At the author's institution, a minimum of 48-h data collection is currently undertaken in patients with a suspected ICP abnormality...
January 20, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28108639/prevalence-of-epilepsy-seizures-as-a-comorbidity-of-neurologic-disorders-in-nursing-homes
#6
Angela K Birnbaum, Ilo E Leppik, Kenneth Svensden, Lynn E Eberly
OBJECTIVE: To determine the prevalence of epilepsy/seizure (epi/sz) comorbid with other neurologic disorders in elderly nursing home residents and to examine demographic and regional variability and associations with clinical characteristics. METHODS: We studied 5 cross-sectional cohorts of all residents in any Medicare/Medicaid-certified nursing home in the United States on July 15 of each year from 2003 to 2007. Epi/sz was identified by ICD-9 codes (345.xx or 780...
January 20, 2017: Neurology
https://www.readbyqxmd.com/read/28104641/measured-head-ct-cta-skin-dose-and-intensive-care-unit-patient-cumulative-exposure
#7
R D Nawfel, G S Young
BACKGROUND AND PURPOSE: Estimates of cumulative CT/CTA radiation dose based on volumetric CT dose index have raised concern that neurological intensive care unit patient exposures may reach thresholds for deterministic skin injury. Because the accuracy of volumetric CT dose index for this purpose in unknown, we set out to directly measure head CT and CTA peak skin dose, assess the relationship of volumetric CT dose index to measured peak skin dose, and determine whether multiple CT/CTA exposures in typical patients in the neurological intensive care unit produce cumulative doses approaching or exceeding single-dose deterministic thresholds for skin injury...
January 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28104500/photographic-assessment-of-retinal-hemorrhages-in-infant-head-injury-the-childhood-hemorrhagic-retinopathy-study
#8
Gaurav Bhardwaj, Mark B Jacobs, Frank J Martin, Kieran T Moran, Kristina Prelog, Craig Donaldson, Ute Vollmer-Conna, Minas T Coroneo
BACKGROUND: Retinal hemorrhages (RH) in babies in the absence of severe trauma or a medical cause have been strongly associated with abusive head trauma (AHT). We examined the pattern of RH in accidental head injury and AHT objectively using widefield retinal imaging. METHODS: A total of 118 infants and children 1-36 months of age admitted with head injuries at two centers were included in this prospective, consecutive, comparative cohort study. Dilated fundus examination was performed with indirect ophthalmoscopy and widefield imaging...
January 16, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28104228/the-efficacy-of-posterior-plating-and-anterior-column-screw-fixation-in-the-management-of-t-shaped-acetabular-fractures-cart-analysis-of-prospective-cohort-study
#9
A S Hammad, T A El-Khadrawe, A H Waly, G A Abu-Sheasha
T-shaped acetabular fractures are challenging injuries. The goal of surgical treatment is to achieve a stable and a concentric reduction of the femoral head under the anatomically reduced weight-bearing dome. There is an ongoing debate about the ideal approach and fixation method for T-shaped fractures. In this study, a group of 34 patients with T-shaped acetabular fractures were treated by posterior plating and anterior column screw. All patients, were followed for at least two years or until hip replacement...
January 9, 2017: Injury
https://www.readbyqxmd.com/read/28102155/surgical-treatment-of-radial-head-fractures-outcomes-and-complications
#10
Bartosz Chwedczuk, Piotr Piekarczyk, Krzysztof Kwiatkowski, Krzysztof Piątkowski
BACKGROUND: Appropriate treatment of radial head fractures remains an area of disputes and controversy. The present paper aims to assess the outcomes of surgical fixation of these injuries and identify the most common complications. MATERIAL AND METHODS: The medical records of 63 patients (25 women and 38 men) treated in 2011 -2014 were analysed retrospectively. The treatment outcomes were assessed according to the Broberg and Morrey rating system and the QuickDASH score...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28101364/hemodynamic-effects-of-electrical-muscle-stimulation-in-the-prophylaxis-of-deep-vein-thrombosis-for-intensive-care-unit-patients-a-randomized-trial
#11
Masahiro Ojima, Ryosuke Takegawa, Tomoya Hirose, Mitsuo Ohnishi, Tadahiko Shiozaki, Takeshi Shimazu
BACKGROUND: Deep vein thrombosis (DVT) is a major complication in critical care. There are various methods of prophylaxis, but none of them fully prevent DVT, and each method has adverse effects. Electrical muscle stimulation (EMS) could be a new effective approach to prevent DVT in intensive care unit (ICU) patients. We hypothesized that EMS increases the venous flow of the lower limbs and has a prophylactic effect against the formation of DVT. METHODS: This study included 26 patients admitted to a single ICU...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28100198/mr-imaging-for-detection-of-trampoline-injuries-in-children
#12
E Hauth, H Jaeger, P Luckey, M Beer
BACKGROUND: The recreational use of trampolines is an increasingly popular activity among children and adolescents. Several studies reported about radiological findings in trampoline related injuries in children. The following publication presents our experience with MRI for detection of trampoline injuries in children. METHODS: 20 children (mean 9.2 years, range: 4-15 years) who had undergone an MRI study for detection of suspected trampoline injuries within one year were included...
January 18, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28100145/chronic-health-conditions-among-incoming-canadian-federally-sentenced-women
#13
Amanda M Nolan, Lynn A Stewart
Over a 13-month period, health data on all consecutive incoming Canadian federally sentenced women offenders were collected and analyzed ( N = 280). The most common health conditions cited were back pain, head injury, hepatitis C virus (HCV), and asthma. Rates of chronic health problems were generally similar to those of their male offender counterparts, with the notable exception of HCV, which was higher for women. Aboriginal women offenders had particularly high rates of HCV. The study provides valuable information on the self-reported physical health status of federally sentenced women offenders that can be used as a benchmark to examine health trends over time...
January 2017: Journal of Correctional Health Care
https://www.readbyqxmd.com/read/28099375/routine-neurosurgical-consultation-is-not-necessary-in-mild-blunt-traumatic-brain-injury
#14
Paul R Lewis, Casey E Dunne, James D Wallace, Jason B Brill, Richard Y Calvo, Jayraan Badiee, Michael J Sise, Vishal Bansal, C Beth Sise, Steven R Shackford
BACKGROUND: The Brain Trauma Foundation guidelines provide indications for neurosurgical intervention in traumatic brain injury (TBI) with moderate or severe intracranial hemorrhage (ICH). In TBI patients with less severe ICH, the utility of neurosurgical consultation remains unclear. We sought to determine if routine neurosurgical consultation is necessary for mild blunt TBI patients with ICH. METHODS: A retrospective cohort study was conducted on 500 consecutive blunt TBI patients aged 15 years or older with Glasgow Coma Scale score ≥13 and ICH on initial head computed tomography (CT) admitted to a Level 1 trauma center over 28 months...
January 17, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28099294/examination-of-pediatric-radiation-dose-delivered-after-cervical-spine-trauma
#15
Laura K Somppi, Kristin A Frenn, Anupam B Kharbanda
OBJECTIVES: Pediatric cervical spine injuries (CSIs) are rare but potentially fatal injuries. Plain radiographs (x-rays) and computed tomography (CT) are used to diagnose CSIs. Given concerns related to radiation exposure, the utility of x-rays in diagnosing CSIs compared with other forms of imaging must be examined. METHODS: Patients younger than 19 years presenting with possible CSI to an urban tertiary care hospital who received imaging for possible CSI between January 1, 2011, and December 31, 2013, were included...
January 17, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28098590/analgesia-and-sedation-requirements-in-mechanically-ventilated-trauma-patients-with-acute-preinjury-use-of-cocaine-and-or-amphetamines
#16
Bridgette Kram, Shawn J Kram, Michelle L Sharpe, Michael L James, Maragatha Kuchibhatla, Mark L Shapiro
BACKGROUND: The purpose of this study was to determine whether mechanically ventilated trauma patients with a positive urine drug screen (UDS) for cocaine and/or amphetamines have different opioid analgesic and sedative requirements compared with similar patients with a negative drug screen for these stimulants. METHODS: This retrospective, single-center cohort study at a tertiary care, academic medical and level 1 trauma center in the United States included patients ≥16 years of age who were admitted to an adult intensive care unit with a diagnosis of trauma between 2009 and 2013 with a UDS documented within 24 hours of admission, and were mechanically ventilated for >24 hours...
January 16, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28097935/finite-element-simulations-of-the-head-brain-responses-to-the-top-impacts-of-a-construction-helmet-effects-of-the-neck-and-body-mass
#17
John Z Wu, Christopher S Pan, Bryan M Wimer, Charles L Rosen
Traumatic brain injuries are among the most common severely disabling injuries in the United States. Construction helmets are considered essential personal protective equipment for reducing traumatic brain injury risks at work sites. In this study, we proposed a practical finite element modeling approach that would be suitable for engineers to optimize construction helmet design. The finite element model includes all essential anatomical structures of a human head (i.e. skin, scalp, skull, cerebrospinal fluid, brain, medulla, spinal cord, cervical vertebrae, and discs) and all major engineering components of a construction helmet (i...
January 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28097520/extremity-fractures-associated-with-atvs-and-dirt-bikes-a-10-year-national-epidemiologic-study
#18
D J Lombardo, T Jelsema, A Gambone, M Weisman, G Petersen-Fitts, J D Whaley, V J Sabesan
BACKGROUND: Morbidity and mortality of all-terrain vehicles and dirt bikes have been studied, as well as the association of helmet use and head injury. HYPOTHESIS/PURPOSE: The purpose of this study is to compare and contrast the patterns of extremity fractures associated with ATVs and dirt bikes. We believe there will be unique and potentially preventable injury patterns associated with dirt bikes and three-wheeled ATVs due to the poor stability of these vehicles...
January 17, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28095763/effect-of-socks-structures-on-plantar-dynamic-pressure-distribution
#19
Zeynab Soltanzadeh, Saeed Shaikhzadeh Najar, M Haghpanahi, M R Mohajeri-Tehrani
A major purpose of investigating the plantar pressure in patients with pain or those at risk for skin injury is to reduce the pressure below metatarsal heads, specially first and second metatarsal heads. The aim of this article is to evaluate the effects of the socks structures on the changes in plantar dynamic pressure. In this study, seven socks types with different structures for the sole area were produced. The Gaitview(®) AFA-50 system, a force plate, was used to measure the plantar dynamic pressure of 10 participants...
November 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28095142/epidemiology-of-national-collegiate-athletic-association-women-s-lacrosse-injuries-2009-10-through-2014-15
#20
Zachary Y Kerr, Andrew E Lincoln, Shane V Caswell, David A Klossner, Nina Walker, Thomas P Dompier
CONTEXT: Participation in collegiate women's lacrosse has increased dramatically, but little recent epidemiological data exists regarding injuries. OBJECTIVE: Describe the epidemiology of National Collegiate Athletic Association (NCAA) women's lacrosse injuries during the 2009-10 through 2014-15 academic years. SETTING: Aggregate injury and exposure data collected from 40 women's lacrosse programs providing 83 team-seasons of data. PATIENTS OR OTHER PARTICIPANTS: Collegiate women's lacrosse student-athletes...
January 17, 2017: Journal of Sport Rehabilitation
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