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Mutty, Christopher

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https://www.readbyqxmd.com/read/27408482/geographic-variation-in-fasciotomy-during-operative-management-of-tibia-fractures
#1
Mark Anders, Christopher Mutty, Allison Cornwall
BACKGROUND: Diagnosis and treatment of acute or impending compartment syndrome (ACS) remains a clinical challenge. ACS is a clinical diagnosis, and may be associated with variation in its definition, as well as individual threshold for fasciotomy. We examined regional and state variation in rates of lower extremity fasciotomy associated with operatively managed tibia fractures. METHODS: A total of 313,344 surgically treated tibia fractures were identified via Current Procedural Terminology (CPT) codes using PearlDiver, a private-payer medical record database...
September 2016: Journal of Orthopaedics
https://www.readbyqxmd.com/read/24071952/heritability-of-lenticular-myopia-in-english-springer-spaniels
#2
Melissa A Kubai, Amber L Labelle, Ralph E Hamor, Donald O Mutti, Thomas R Famula, Christopher J Murphy
PURPOSE: We determined whether naturally-occurring lenticular myopia in English Springer spaniels (ESS) has a genetic component. METHODS: Streak retinoscopy was performed on 226 related ESS 30 minutes after the onset of pharmacologic mydriasis and cycloplegia. A pedigree was constructed to determine relationships between affected offspring and parents. Estimation of heritability was done in a Bayesian analysis (facilitated by the MCMCglmm package of R) of refractive error in a model, including terms for sex and coat color...
November 2013: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/23845569/donor-site-morbidity-with-reamer-irrigator-aspirator-ria-use-for-autogenous-bone-graft-harvesting-in-a-single-centre-204-case-series
#3
Lars M Qvick, Christopher A Ritter, Christopher E Mutty, Bernhard J Rohrbacher, Cathy M Buyea, Mark J Anders
Donor site morbidity and complication rate using the reamer-irrigator-aspirator (RIA) system for intramedullary, non-structural autogenous bone graft harvesting were investigated in a retrospective chart and radiographic review at a University affiliated Level-1 Trauma Centre. 204 RIA procedures in 184 patients were performed between 1/1/2007 and 12/31/2010. RIA-indication was bone graft harvesting in 201 (98.5%), and intramedullary irrigation and debridement in 3 (1.5%) cases. Donor sites were: femur - antegrade 175, retrograde 4, tibia - antegrade 7, retrograde 18...
October 2013: Injury
https://www.readbyqxmd.com/read/23838771/peripheral-defocus-and-myopia-progression-in-myopic-children-randomly-assigned-to-wear-single-vision-and-progressive-addition-lenses
#4
RANDOMIZED CONTROLLED TRIAL
David A Berntsen, Christopher D Barr, Donald O Mutti, Karla Zadnik
PURPOSE: To determine the effect of progressive addition lenses (PALs) and single vision lenses (SVLs) on peripheral defocus in myopic children, and to compare the effect of myopic versus hyperopic peripheral defocus on foveal myopia progression. METHODS: Eighty-four myopic children aged 6 to 11 years with spherical equivalent (SE) cycloplegic autorefraction between -0.75 diopters (D) and -4.50 D were randomly assigned to wear SVLs or PALs. Aberrometry measurements of the eye and spectacles were made centrally, 30° nasally, temporally, and superiorly, and 20° inferiorly on the retina using a Complete Ophthalmic Analysis System for Vision Research (COAS-VR)...
August 27, 2013: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/22879983/patterns-of-dna-methylation-in-development-division-of-labor-and-hybridization-in-an-ant-with-genetic-caste-determination
#5
Chris R Smith, Navdeep S Mutti, W Cameron Jasper, Agni Naidu, Christopher D Smith, Jürgen Gadau
BACKGROUND: DNA methylation is a common regulator of gene expression, including acting as a regulator of developmental events and behavioral changes in adults. Using the unique system of genetic caste determination in Pogonomyrmex barbatus, we were able to document changes in DNA methylation during development, and also across both ancient and contemporary hybridization events. METHODOLOGY/PRINCIPAL FINDINGS: Sodium bisulfite sequencing demonstrated in vivo methylation of symmetric CG dinucleotides in P...
2012: PloS One
https://www.readbyqxmd.com/read/21169876/ocular-components-in-three-breeds-of-dogs-with-high-prevalence-of-myopia
#6
Laura A Williams, Melissa A Kubai, Christopher J Murphy, Donald O Mutti
PURPOSE: Experimental models of human myopia have been developed using animals of various species. However, most of these are an induced rather than a spontaneous, naturally occurring myopia. This study was conducted to evaluate whether the spontaneous myopia found in three canine breeds was axial in nature and therefore similar to humans. METHODS: Refractive error was measured by cycloplegic retinoscopy and ocular components by A-scan ultrasound (ocular axial dimensions) and videophakometry (corneal and lens radii and powers) in 83 dogs of three breeds [English Springer Spaniels (n = 33), Toy Poodles (n = 36), and Collies (n = 14)]...
February 2011: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/19226056/the-long-lost-art-of-preoperative-planning-resurrected
#7
Holly T P Pilson, Robert N Reddix, Christopher E Mutty, Lawrence X Webb
Tibial plateau fractures are complex injuries that can affect both knee function and stability. In the past, surgeons have relied on radiographs, viewboxes, tracing paper, and scaled acetate templates to formulate a preoperative plan. With the advent of digital radiography, viewboxes, and standard radiographs are no longer routinely available. The availability of a digital format for preoperative planning has helped to address this, but fragment manipulation and implant templating are not features of most digital radiography systems...
December 2008: Orthopedics
https://www.readbyqxmd.com/read/18829935/femoral-nerve-block-for-diaphyseal-and-distal-femoral-fractures-in-the-emergency-department-surgical-technique
#8
RANDOMIZED CONTROLLED TRIAL
Christopher E Mutty, Erik J Jensen, Michael A Manka, Mark J Anders, Lawrence B Bone
BACKGROUND: Diaphyseal and distal femoral fractures are painful injuries that are frequently seen in patients requiring a trauma work-up in the hospital emergency department prior to definitive management. The purpose of this study was to determine whether a femoral nerve block administered in the emergency department could provide better pain relief for patients with femoral fractures than currently used pain management practices. METHODS: Patients who presented with an acute diaphyseal or distal femoral fracture were identified as potential candidates for this study...
October 2008: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/18593249/refractive-states-of-eyes-and-association-between-ametropia-and-breed-in-dogs
#9
Melissa A Kubai, Ellison Bentley, Paul E Miller, Donald O Mutti, Christopher J Murphy
OBJECTIVE: To assess the refractive state of eyes in various breeds of dogs to identify breeds susceptible to ametropias. ANIMALS: 1,440 dogs representing 90 breeds. PROCEDURES: In each dog, 1 drop of 1% cyclopentolate or 1% tropicamide was applied to each eye, and a Canine Eye Registration Foundation examination was performed. Approximately 30 minutes after drops were administered, the refractive state of each eye was assessed via streak retinoscopy...
July 2008: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/18401488/using-the-quick-couple-drill-attachment-as-an-intraoperative-metal-file
#10
Michael A Rauh, Lindsay Clark, Christopher Mutty, Mark Anders
The occasional need to alter or modify plate length during surgery is familiar to most orthopedic surgeons. However, at the modification site, sharp edges may remain. Files or rasps are often used to smooth these edges to prevent local tissue irritation and injury to surgical personnel. To reduce the potential for personal injury during preparation and implantation, while adding convenience and speed to this procedure, we introduce a technique for filing down sharp edges of plates and implants with equipment readily available within most orthopedic operating rooms...
February 2008: American Journal of Orthopedics
https://www.readbyqxmd.com/read/18056490/femoral-nerve-block-for-diaphyseal-and-distal-femoral-fractures-in-the-emergency-department
#11
RANDOMIZED CONTROLLED TRIAL
Christopher E Mutty, Erik J Jensen, Michael A Manka, Mark J Anders, Lawrence B Bone
BACKGROUND: Diaphyseal and distal femoral fractures are painful injuries that are frequently seen in patients requiring a trauma work-up in the hospital emergency department prior to definitive management. The purpose of this study was to determine whether a femoral nerve block administered in the emergency department could provide better pain relief for patients with femoral fractures than currently used pain management practices. METHODS: Patients who presented with an acute diaphyseal or distal femoral fracture were identified as potential candidates for this study...
December 2007: Journal of Bone and Joint Surgery. American Volume
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