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https://www.readbyqxmd.com/read/28550761/can-cadaverous-pollution-from-environmental-lead-misguide-to-false-positive-results-in-the-histochemical-determination-of-gunshot-residues-study-on-cadaveric-skin-samples
#1
Michele Boracchi, Salvatore Andreola, Federica Collini, Guendalina Gentile, Francesca Maciocco, Francesca Maghin, Riccardo Zoja
Histochemical determination of lead in gunshot residues (GSR) raises the question of possible environmental contamination by heavy metals. Authors assess the specificity of the Sodium Rhodizonate Test in the search of lead derived from environmental pollution. Sodium Rhodizonate Test and 5% HCl Sodium Rhodizonate test were applied to skin samples taken from two groups of victims, whose cause of death was not related to gunshot wounds: group A included 25 corpses found in open spaces after a long time; group B included 16 corpses exhumed after a period of 11 years...
May 13, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28549557/aberrant-distribution-of-the-trochlear-nerve-a-cadaveric-study-supported-by-immunohistochemistry
#2
Kojiro Takezawa, Grant Townsend, Jim Manavis, Mounir Ghabriel
The trochlear nerve is generally considered to be a purely motor nerve supplying one extraocular muscle, the superior oblique. In the current study, 28 orbits were dissected and in one orbit (3.6%), the trochlear nerve divided into two main branches. The medial branch followed the classical course, entered the superior oblique muscle and was presumed to be motor in function. However, before entering the muscle, it partially fused with the frontal nerve, and gave a bundle of nerve fibres to the frontal nerve...
May 23, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28549397/assessment-of-distal-radioulnar-joint-stability-after-reconstruction-with-the-brachioradialis-wrap
#3
Charity S Burke, Keith A Zoeller, Seid W Waddell, John A Nyland, Michael J Voor, Amitava Gupta
BACKGROUND: The brachioradialis (BR) wrap technique is an option to restore the stability of the distal radioulnar joint (DRUJ). The technique capitalizes on the BR's advantageous insertion point on the radial styloid and the ability of the BR to be harvested with minimal to no deficit. The tendon can then be wrapped around the radius and ulna, tunneling under the pronator quadratus and extensor compartments and secured back into its insertion to provide stability. In this cadaveric study, we used micro-computed tomography (CT) to assess the stability restored by this procedure...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28547783/aortic-arch-origin-of-the-left-vertebral-artery-an-anatomical-and-radiological-study-with-significance-for-avoiding-complications-with-anterior-approaches-to-the-cervical-spine
#4
Gabrielle G Tardieu, Bryan Edwards, Fernando Alonso, Koichi Watanabe, Tsuyoshi Saga, Moriyoshi Nakamura, Mayuko Motomura, Raghu Sampath, Joe Iwanaga, Oded Goren, Stephen Monteith, Rod J Oskouian, Marios Loukas, R Shane Tubbs
INTRODUCTION: Complications from anterior approaches to the cervical spine are uncommon with normal anatomy. However, variant anatomy might predispose one to an increased incidence of injury during such procedures. We hypothesized that left vertebral arteries that arise from the aortic arch instead of the subclavian artery might take a more medial path in their ascent making them more susceptible to iatrogenic injury. MATERIALS AND METHODS: Fifty human adult cadavers were examined for left vertebral arteries having an aortic arch origin and these were dissected along their entire cervical course...
May 25, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28545494/no-correlation-between-radiolucency-and-biomechanical-stability-of-keeled-and-pegged-glenoid-components
#5
Andreas Voss, Knut Beitzel, Elifho Obopilwe, Stefan Buchmann, John Apostolakos, Jessica Di Venere, Michael Nowak, Mark P Cote, Anthony A Romeo, Augustus D Mazzocca
BACKGROUND: The purpose of this study was to examine biomechanical properties and the degree of radiolucency of two cemented basic glenoid designs for total shoulder arthroplasty. Our hypothesis was that a component with increased micro-motion in the laboratory at time zero would also exhibit a greater amount of radiolucency in patients at a minimum of 2 years post total shoulder arthroplasty. METHODS: Thirty cadaveric shoulders were divided into 2 groups (keel vs...
May 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28544676/robotic-distal-locking-of-intramedullary-nailing-technical-description-and-cadaveric-testing
#6
Martin Panzica, Eduardo M Suero, Ralf Westphal, Musa Citak, Emmanouil Liodakis, Nael Hawi, Max Petri, Christian Krettek, Timo Stuebig
Interlocked intramedullary nailing is the treatment of choice for femoral shaft fractures. However, distal locking is a technically challenging part of the procedure that can result in distal femoral malrotation and high radiation exposure. We have tested a robotic procedure for robotic distal locking based on the computation of a drilling trajectory on two calibrated fluoroscopic images. Twenty distal holes were attempted in ten cadaveric femur specimens. Successful screw hole drilling was achieved at the first attempt in each of the ten specimens (20 drill holes in total)...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28544582/evaluation-by-medical-students-of-the-educational-value-of-multi-material-and-multi-colored-three-dimensional-printed-models-of-the-upper-limb-for-anatomical-education
#7
Sreenivasulu Reddy Mogali, Wai Yee Yeong, Heang Kuan Joel Tan, Gerald Jit Shen Tan, Peter H Abrahams, Nabil Zary, Naomi Low-Beer, Michael Alan Ferenczi
For centuries, cadaveric material has been the cornerstone of anatomical education. For reasons of changes in curriculum emphasis, cost, availability, expertise, and ethical concerns, several medical schools have replaced wet cadaveric specimens with plastinated prosections, plastic models, imaging, and digital models. Discussions about the qualities and limitations of these alternative teaching resources are on-going. We hypothesize that three-dimensional printed (3DP) models can replace or indeed enhance existing resources for anatomical education...
May 19, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28544177/giant-orf-tumor-in-an-immunocompromised-patient
#8
L Polivka, P Moguelet, J F Meritet, N Ouali, C Francès, P Senet
Herein, we report the efficacy and the safety of open-spray cryotherapy in an immunocompromised woman presenting with tumor-like orf lesion. A 58-year-old woman was referred with a 4-month history of an undiagnosed, painful, ulcerated, tumor-like lesion on the last phalanx of the fifth digit of her left hand. Six months earlier, the woman had received a cadaveric kidney transplant for an indication of focal segmental glomerulosclerosis. This article is protected by copyright. All rights reserved.
May 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28541199/3d-nonlinear-acoustic-inverse-scattering-algorithm-and-quantitative-results
#9
James Wiskin, David Borup, Elaine Iuanow, John Klock, Mark Lenox
We describe a novel 3D ultrasound technology, the Quantitative Transmission Ultrasound (QT Ultrasound®) system and algorithm to image a pendent breast in a water bath. Quantitative accuracy is verified using phantoms. Morphological accuracy is verified using cadaveric breast and in vivo images, and spatial resolution is estimated. This paper generalizes an earlier 2D algorithm to a full 3D inversion algorithm and shows the importance of such a 3D algorithm for artifact suppression as compared with the 2D algorithm...
May 23, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28540908/two-unusual-cases-of-microvascular-thrombosis-in-the-immediate-posttransplant-period
#10
Swarnalata Gowrishankar, Srinivasan Krishnan, M S Ravishankar, Swapna Nuguri
We present two unusual cases of microvascular thrombosis in the immediate posttransplant period resulting in graft loss. The first was a 20-year-old female with a cadaveric renal transplant with immediate graft dysfunction due to microthrombi of probable donor origin, with nonrecovery of renal function nine months' posttransplant. The second was a 23-year-old male with unrelated live kidney transplant with hyperacute rejection due to anti-endothelial antibodies.
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540124/relationship-of-the-sinus-anatomy-to-surface-landmarks-is-a-function-of-the-sinus-size-difference-between-the-right-and-left-side-anatomical-study-based-on-ct-angiography
#11
Roy S Hwang, Ryan C Turner, Walid Radwan, Rahul Singh, Brandon Lucke-Wold, Abdul Tarabishy, Sanjay Bhatia
BACKGROUND: Several cadaveric studies demonstrate reliable localization of the transverse sinus and the transverse sigmoid junction (TSJ). These studies use the line drawn from the inion to the posterior root of the zygoma (IZ) and the asterion, respectively. We investigated how the size difference between the right and left transverse sinuses (TS) and sigmoid sinuses (SS) affected the accuracy of their respective superficial landmarks, particularly with regards to where this relationship may result in unsafe and/or complicated surgical access...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28539457/mechanical-evidence-that-flamingos-can-support-their-body-on-one-leg-with-little-active-muscular-force
#12
Young-Hui Chang, Lena H Ting
Flamingos (Phoenicopteridae) often stand and sleep on one leg for long periods, but it is unknown how much active muscle contractile force they use for the mechanical demands of standing on one leg: body weight support and maintaining balance. First, we demonstrated that flamingo cadavers could passively support body weight on one leg without any muscle activity while adopting a stable, unchanging, joint posture resembling that seen in live flamingos. By contrast, the cadaveric flamingo could not be stably held in a two-legged pose, suggesting a greater necessity for active muscle force to stabilize two-legged versus one-legged postures...
May 2017: Biology Letters
https://www.readbyqxmd.com/read/28539078/can-we-safely-monitor-posterior-fossa-intracranial-pressure-a-cadaveric-study
#13
Vicente Vanaclocha, Nieves Sáiz-Sapena, Marlon Rivera-Paz, Juan Manuel Herrera, José María Ortiz-Criado, Francisco Verdu-López, Leyre Vanaclocha
BACKGROUND: measuring intracranial pressure (ICP) is considered the gold standard of care for brain injury. While supratentorial ICP monitoring has been adopted everywhere, posterior fossa ICP monitoring is rarely performed. In this study, we aimed to evaluate the feasibility of inserting ICP sensors into the posterior fossa of cadavers, to measure ICP in the posterior fossa. METHODS: An ICP sensor was transcranially implanted into the posterior fossa of fifteen fresh adult cadavers...
May 25, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28539054/anatomic-structures-at-risk-when-utilizing-an-intramedullary-nail-for-distal-fibular-fractures-a-cadaveric-study
#14
David A Goss, Christopher W Reb, Terrence M Philbin
BACKGROUND: Retrograde intramedullary fibular nail fixation is being utilized with increasing frequency, particularly in patients at higher risk of wound complications. The purpose of this anatomic study was to assess the relative risk to nearby anatomic structures when implanting a contemporary retrograde locked intramedullary fibular nail. METHODS: Ten human cadaveric lower extremities were instrumented with a fibular nail. The cadavers were dissected. The shortest distance, in millimeters (mm), between the site of procedural steps and nearby named structures of interest (ie, sural nerve, superficial peroneal nerve, and the peroneal tendons) was measured and recorded...
May 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28538578/total-abdominal-wall-transplantation-an-anatomical-study-and-classification-system
#15
David Light, Neilendu Kundu, Risal Djohan, Cristiano Quintini, Namita Gandhi, Brian R Gastman, Richard Drake, Maria Siemionow, James E Zins
BACKGROUND: Candidates for multivisceral transplantation present with complex defects often beyond traditional reconstructive options. In this study, the authors describe a dissection technique for a total abdominal wall vascularized composite flap. In addition, the authors suggest a classification system for complex abdominal wall defects. METHODS: Forty fresh, cadaveric hemiabdomens were dissected, with care taken to preserve the iliofemoral, deep circumflex iliac, superficial circumflex iliac, deep inferior epigastric, and superficial inferior epigastric arteries and corresponding veins...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538572/intratendinous-injection-of-hydrogel-for-reseeding-decellularized-human-flexor-tendons
#16
Chao Long, Michael G Galvez, Anais Legrand, Lydia-Marie Joubert, Zhen Wang, Arhana Chattopadhyay, James Chang, Paige M Fox
BACKGROUND: Decellularized cadaveric tendons are a potential source for reconstruction. Reseeding to enhance healing is ideal; however, cells placed on the tendon surface result in inadequate delivery. The authors used an injection technique to evaluate intratendinous cell delivery. METHODS: Decellularized tendons were reseeded with adipose-derived stem cells in culture, and injected with fetal bovine serum or hydrogel. PKH26-stained cells in cross-section were quantified...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28536855/rotational-laxity-control-by-the-anterolateral-ligament-and-the-lateral-meniscus-is-dependent-on-knee-flexion-angle-a-cadaveric-biomechanical-study
#17
Timothy Lording, Gillian Corbo, Dianne Bryant, Timothy A Burkhart, Alan Getgood
BACKGROUND: Injury to the anterolateral ligament (ALL) has been reported to contribute to high-grade anterolateral laxity after anterior cruciate ligament (ACL) injury. Failure to address ALL injury has been suggested as a cause of persistent rotational laxity after ACL reconstruction. Lateral meniscus posterior root (LMPR) tears have also been shown to cause increased internal rotation of the knee. QUESTIONS/PURPOSES: The purpose of this study was to determine the functional relationship between the ALL and LMPR in the control of internal rotation of the ACL-deficient knee...
May 23, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28536794/good-clinical-results-can-be-obtained-along-with-reduced-risk-of-tunnel-communication-with-a-new-technique-in-concomitant-meniscus-transplantation-and-acl-reconstruction
#18
Murat Bozkurt, Mesut Tahta, Mustafa Akkaya, Cetin Isik, Safa Gursoy
PURPOSE: The purpose of this study was to introduce our technical modification for concomitant meniscus transplantation and ACL reconstruction with preliminary results of our cases. METHODS: The current study comprised of two sections: first is the cadaveric study of 20 specimens. The distances between tunnel entry and exit points of tunnels for 27 meniscal transplants and ACL reconstruction in CT slices were measured. The second section was evaluation of our cases including six patients...
May 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28536700/fabrication-and-evaluation-of-electrospun-3d-bioplotted-and-combination-of-electrospun-3d-bioplotted-scaffolds-for-tissue-engineering-applications
#19
Liliana F Mellor, Pedro Huebner, Shaobo Cai, Mahsa Mohiti-Asli, Michael A Taylor, Jeffrey Spang, Rohan A Shirwaiker, Elizabeth G Loboa
Electrospun scaffolds provide a dense framework of nanofibers with pore sizes and fiber diameters that closely resemble the architecture of native extracellular matrix. However, it generates limited three-dimensional structures of relevant physiological thicknesses. 3D printing allows digitally controlled fabrication of three-dimensional single/multimaterial constructs with precisely ordered fiber and pore architecture in a single build. However, this approach generally lacks the ability to achieve submicron resolution features to mimic native tissue...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28534953/proteomic-analysis-of-differentially-expressed-proteins-in-kidneys-of-brain-dead-rabbits
#20
Ling Li, Ning Li, Chongxiang He, Wei Huang, Xiaoli Fan, Zibiao Zhong, Yanfeng Wang, Qifa Ye
A large number of previous clinical studies have reported a delayed graft function for brain dead donors, when compared with living relatives or cadaveric organ transplantations. However, there is no accurate method for the quality evaluation of kidneys from brain‑dead donors. In the present study, two‑dimensional gel electrophoresis and MALDI‑TOF MS‑based comparative proteomic analysis were conducted to profile the differentially‑expressed proteins between brain death and the control group renal tissues...
May 19, 2017: Molecular Medicine Reports
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