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https://www.readbyqxmd.com/read/29334575/measurement-of-warping-angle-in-human-rib-graft-experimental-study
#1
Safvet Ors
To determine the warping angle of the costal cartilage in vivo. A nasal framework reconstruction with a rib graft was performed in a total of 130 patients. After the cartilage specimens were prepared, the remaining grafts were used for the experimental study. The angle of warping in all grafts was measured at 0, 30, and 60 minutes, after 24 hours and after one week. In this study, 8 subgroups of graft thicknesses from central and peripheral groups, which were determined according to the perichondral distance of the grafts, were evaluated, and the warping angles of a total of 48 osteochondral and chondral grafts were individually measured...
January 10, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29333480/gpu-based-branchless-distance-driven-projection-and-backprojection
#2
Rui Liu, Lin Fu, Bruno De Man, Hengyong Yu
Projection and backprojection operations are essential in a variety of image reconstruction and physical correction algorithms in CT. The distance-driven (DD) projection and backprojection are widely used for their highly sequential memory access pattern and low arithmetic cost. However, a typical DD implementation has an inner loop that adjusts the calculation depending on the relative position between voxel and detector cell boundaries. The irregularity of the branch behavior makes it inefficient to be implemented on massively parallel computing devices such as graphics processing units (GPUs)...
December 2017: IEEE Transactions on Computational Imaging
https://www.readbyqxmd.com/read/29333464/comparison-of-tof-pet-and-bremsstrahlung-spect-images-of-yttrium-90-a-monte-carlo-simulation-study
#3
Akihiko Takahashi, Kazuhiko Himuro, Shingo Baba, Yasuo Yamashita, Masayuki Sasaki
Objectives: Yttrium-90 (90Y) is a beta particle nuclide used in targeted radionuclide therapy which is available to both single-photon emission computed tomography (SPECT) and time-of-flight (TOF) positron emission tomography (PET) imaging. The purpose of this study was to assess the image quality of PET and Bremsstrahlung SPECT by simulating PET and SPECT images of 90Y using Monte Carlo simulation codes under the same conditions and to compare them. Methods: In-house Monte Carlo codes, MCEP-PET and MCEP-SPECT, were employed to simulate images...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29332665/performance-outcomes-after-medial-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-positional-players
#4
John P Begly, Michael S Guss, Theodore S Wolfson, Siddharth A Mahure, Andrew S Rokito, Laith M Jazrawi
BACKGROUND: We sought to determine whether professional baseball positional players who underwent medial ulnar collateral ligament (MUCL) reconstruction demonstrate decreases in performance on return to competition compared with preoperative performance metrics and their control-matched peers. METHODS: Data for 35 Major League Baseball positional players who underwent MUCL reconstruction during 31 seasons were obtained. Twenty-six players met inclusion criteria...
February 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29332261/is-the-laser-mightier-than-the-sword-a-comparative-study-for-the-urethrotomy
#5
Coen Holzhauer, Anita W T M Roelofs, Arjen C Kums, Philip C Weijerman, Michael R van Balken
PURPOSE: The knife is the most common used instrument for endoscopic urethrotomy. Unfortunately, there are high recurrence rates; it is thought that a laser reduces those rates. We compared the two techniques in this retrospective study. MATERIALS AND METHODS: Between 2010 and 2014, 127 patients were operated on with the knife (KG) and for 65 patients, the laser (LG) was used. We scored the complexity of the stricture using the UREThRAL stricture score (USS) and we scored if a treatment was successful...
January 13, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29332225/over-90%C3%A2-of-children-and-adolescents-return-to-sport-after-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#6
REVIEW
Jeffrey Kay, Muzammil Memon, Robert G Marx, Devin Peterson, Nicole Simunovic, Olufemi R Ayeni
PURPOSE: To evaluate the rate at which children and adolescent athletes return to sporting activities after anterior cruciate ligament (ACL) reconstruction. METHODS: Three databases, PubMed, MEDLINE, and EMBASE, were searched from database inception until September 9, 2017 by two reviewers independently and in duplicate. The inclusion criteria were English language studies that reported return to sport outcomes. Book chapters, conference papers, review articles, and technical reports were excluded...
January 13, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29332169/measuring-cochlear-duct-length-in-asian-population-worth-giving-a-thought
#7
Mohnish Grover, Shitanshu Sharma, Shashank Nath Singh, Tanmaya Kataria, Rajendra Singh Lakhawat, Man Prakash Sharma
INTRODUCTION: The anatomy of the cochlea forms the basis for a successful cochlear implantation. Cochlear duct length (CDL) is defined as the length of the scala media as measured from the middle of the round window to helicotrema. Preoperative measurement of CDL is particularly important when precise intracochlear electrode array placement is desired. It can be done both histologically and radiologically. Preoperative high-resolution computed tomography (HRCT) scan which forms an integral part of cochlear implant workup is a useful tool to calculate CDL using 3D reconstructions...
January 13, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29331709/what-do-the-genetic-association-data-say-about-the-high-risk-of-suicide-in-people-with-depression-a-novel-network-based-approach-to-find-common-molecular-basis-for-depression-and-suicidal-behavior-and-related-therapeutic-targets
#8
Ali Bozorgmehr, Fatemeh Alizadeh, Sattar Norouzi Ofogh, Mohammad Reza Abdollahzadeh Hamzekalayi, Sara Herati, Atefeh Moradkhani, Ali Shahbazi, Mohammad Ghadirivasfi
BACKGROUND: Available sources indicate that the risk of suicide in people with major depression is higher than other psychiatric disorders. Although it seems that these two conditions may have a shared cause in some cases, no studies have been conducted to identify a common basis for them. METHODS: In this study, following an extensive review of literature, we found almost all the genes that are involved in major depression and suicidal behavior, and we isolated genes shared between the two conditions...
January 8, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29331084/baus-consensus-document-for-the-management-of-male-genital-emergencies-penile-amputation
#9
REVIEW
C J Shukla, G Brown, T Dorkin, M Lucky, R Pearcy, R W Rees, M Shabbir, D J Summerton, A Muneer
Male genital emergencies relating to the penis and scrotum are rare and require prompt investigation and surgical intervention. Clinicians are often unfamiliar with the management of these conditions and may not work in a specialist centre with on-site expertise in genitourethral surgery available. A series of consensus statements have been developed by an expert consensus comprising BAUS Section of Andrology and Genitourethral Surgery together with experts from units throughout the UK. Penile amputation is a rare gentile emergency and requires prompt intervention and microsurgical reconstruction...
January 13, 2018: BJU International
https://www.readbyqxmd.com/read/29330928/specific-labelling-of-myonuclei-by-an-antibody-against-pericentriolar-material-1-pcm1-on-skeletal-muscle-tissue-sections
#10
I M Winje, M Bengtsen, E Eftestøl, I Juvkam, J C Bruusgaard, K Gundersen
AIM: Skeletal muscle is a heterogeneous tissue containing several different cell types and only about 40 - 50% of the cell nuclei within the tissue belong to myofibres. Existing technology, attempting to distinguish myonuclei from other nuclei at the light microscopy level, has led to controversies in our understanding of the basic cell biology of muscle plasticity. The present study aims at demonstrating that an antibody against the protein Pericentriolar material 1 (PCM1) can be used to reliably identify myonuclei on histological cross sections from humans, mice and rats...
January 13, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29330651/3d-computed-tomography-to-compare-the-dimensions-of-the-left-atrial-appendage-in-patients-with-normal-sinus-rhythm-and-those-with-paroxysmal-atrial-fibrillation
#11
Maiko Hozawa, Yoshihiro Morino, Yuki Matsumoto, Ryoichi Tanaka, Kyohei Nagata, Akiko Kumagai, Atsushi Tashiro, Akio Doi, Kunihiro Yoshioka
Although paroxysmal atrial fibrillation (PAF) is an important cause of cardioembolic stroke, in contrast to chronic AF patients, the anatomical features of the left atrial appendage (LAA) in PAF patients remain unknown. Here, we investigated differences in LAA structures in patients with PAF and those with normal sinus rhythms (NSR) using 3D-computed tomography (3D-CT), which allows us to visualize complicated LAA structures at high spatial resolution. Study subjects were 30 consecutive PAF and 30 NSR patients with complete enhanced cardiac 3D-CT images available...
January 12, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29330589/impact-of-valve-less-vs-standard-insufflation-on-pneumoperitoneum-volume-inflammation-and-peritoneal-physiology-in-a-laparoscopic-sigmoid-resection-experimental-model
#12
Michele Diana, Eric Noll, Andras Legnèr, Seong-Ho Kong, Yu-Yin Liu, Luigi Schiraldi, Francesco Marchegiani, Jordan Bano, Bernard Geny, Anne-Laure Charles, Bernard Dallemagne, Véronique Lindner, Didier Mutter, Pierre Diemunsch, Jacques Marescaux
BACKGROUND: Standard insufflators compensate for intra-abdominal pressure variations with pressure spikes. Our aim was to evaluate the impact of a stable, low-pressure pneumoperitoneum induced by a valve-less insufflator, on working space, hemodynamics, inflammation, and peritoneal physiology, in a model of laparoscopic sigmoid resection. MATERIALS AND METHODS: Twelve pigs (47 ± 3.3 kg) were equipped for invasive hemodynamic monitoring and randomly assigned to Standard (n = 6) vs...
January 12, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29330138/a-biogeographic-and-ecological-perspective-to-the-evolution-of-reproductive-behaviour-in-the-family-salamandridae
#13
Sarah Kieren, Max Sparreboom, Axel Hochkirch, Michael Veith
Amphibians have a complex reproductive behaviour, which shows the highest diversity among tetrapodes. The family Salamandridae, distributed across the entire Holarctic, is one of the most diverse groups of extant salamanders comprising 114 species in 21 genera. The family has a remarkable diversity of courtship modes, amplexus and sperm transfer. It is often hypothesised that this diversity has evolved in adaptation to a specific mating and/or breeding habitat. We test this hypothesis based upon a phylogenetic reconstruction using the complete mitochondrial genome sequences of 45 Salamandridae species, representing all existing genera...
January 9, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29329888/associations-between-cartilage-proteoglycan-density-and-patient-outcomes-12months-following-anterior-cruciate-ligament-reconstruction
#14
Brian Pietrosimone, Daniel Nissman, Darin A Padua, J Troy Blackburn, Matthew S Harkey, Robert A Creighton, Ganesh M Kamath, Kaitlin Healy, Randy Schmitz, Jeffrey B Driban, Steve W Marshall, Joanne M Jordan, Jeffrey T Spang
BACKGROUND: Lower proteoglycan density (PGD) of the articular cartilage may be an early marker of osteoarthritis following anterior cruciate ligament (ACL) reconstruction (ACL-R). The purpose this study was to determine associations between the Knee Injury and Osteoarthritis Outcomes Score (KOOS) and PGD of the articular cartilage in the femur and tibia 12-months following ACL-R. METHODS: We evaluated KOOS pain, symptoms, function in activities of daily living (ADL), function in sport and recreation (Sport), and quality of life (QOL), as well as PGD using T1rho magnetic resonance imaging in 18 individuals 12...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29329686/highlighting-priority-areas-for-bovine-viral-diarrhea-control-in-italy-a-phylogeographic-approach
#15
Erika Ebranati, Stefania Lauzi, Francesco Cerutti, Claudio Caruso, Loretta Masoero, Ana Moreno, Gian Mario De Mia, Simone Peletto, Gianguglielmo Zehender, Camilla Luzzago
The prevalence and genetic diversity of bovine viral diarrhea virus (BVDV) in a geographic area are largely influenced by live animal trade and management practices. Despite control and eradication programs currently underway in several European countries, the risk of BVDV spread within and among countries is still present. BVDV-1 is the predominant type circulating in European cattle population. In this study, a phylogeographic analysis was applied to the BVDV-1 highest prevalent subtypes in Italy to reconstruct the origin and spatial-temporal distribution and to trace main viral flows between different locations to highlight priority areas for BVDV control...
January 9, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29329172/clinical-features-and-outcomes-of-post-traumatic-silent-sinus-syndrome
#16
Edward J Wladis, Robert C Kersten, M Reza Vagefi, Carlos Pinheiro-Neto, Roman Shinder, H Jane Kim
PURPOSE: To identify demographic features and clinical outcomes associated with post-traumatic silent sinus syndrome. METHODS: A retrospective review was carried out at 3 academic medical centers to identify all cases of post-traumatic silent sinus syndrome. Clinical features and management strategies were recorded. Postoperative outcomes were assessed, and statistical analyses were performed via a dedicated computerized software package. RESULTS: Twenty cases were identified (14 men and 6 women, mean age = 44...
January 10, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29328968/in-vitro-examination-of-an-oleosome-based-sun-protection-product-on-the-influence-of-uvb-induced-inflammation-markers-in-human-epidermal-skin-equivalent-tissue-model
#17
James V Gruber, Robert Holtz, Soo In Yang
In vitro human epidermal skin equivalent tissues (MatTek EpiDerm™) were employed to examine the influence of UVB radiation on various established inflammation markers in the presence of topically applied sunscreens. MatTek EpiDerm™ tissues were treated with 2.0mg/cm2 of an Experimental oleosome-based SPF 30 product or a commercial SPF 30 beach product. Tissues were irradiated with 300mJ/cm2 of UVB radiation. Inflammatory cytokines IL-1α, IL-6 and IL-8 as well as arachidonic acid cascade marker PGE2 were examined via ELISA-based antibody detection...
December 28, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29328888/posterior-cruciate-ligament-reconstruction-with-transtibial-or-tibial-inlay-techniques-a-meta-analysis-of-biomechanical-and-clinical-outcomes
#18
Dong-Yeong Lee, Dong-Hee Kim, Hyun-Jung Kim, Hyeong-Sik Ahn, Tae-Ho Lee, Sun-Chul Hwang
BACKGROUND: Transtibial (TT) or tibial inlay (TI) techniques are commonly used for posterior cruciate ligament reconstruction (PCLR). However, the optimum method for PCLR after PCL injury remains debatable. Hypothesis/Purpose: The hypothesis was that TT and TI techniques would not show significant differences for all outcome measures. The purpose was to determine the biomechanical and clinical outcomes of TT and TI surgical techniques for PCLR. STUDY DESIGN: Meta-analysis; Level of evidence, 3...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29328534/split-thickness-skin-grafting-for-reconstruction-of-auricular-skin-defects-a-statistical-analysis
#19
Tobias Thuile, Lorenz Larcher, Barbara Gatscher, Karl Schwaiger, Jenny Deluca, Amgiad Fallaha, Lukas Tappeiner, Mario Puviani, Klaus Eisendle
BACKGROUND AND OBJECTIVES: Surgical reconstruction following the removal of large malignant auricular lesions is challenging. While many options for defect closure have been described, in the elderly population usually affected flap surgery, long anesthesia times, patient compliance, and anticoagulant therapy pose additional risks. An alternative quick, simple, and effective method of defect closure is therefore highly desirable. The objective of the present study was to assess the aesthetic outcome, healing process, complications, and recurrence rates associated with unmeshed split-thickness skin grafts (STSGs) used for covering large auricular skin defects following cartilage-sparing skin cancer removal...
January 12, 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29328523/improved-portal-vein-venoplasty-with-autogenous-patch-in-pediatric-living-donor-liver-transplantation
#20
Mingxuan Feng, Ping Wan, Bijun Qiu, Tao Zhou, Yi Luo, Lihong Gu, Jiachang Chi, Chengpeng Zhong, Yefeng Lu, Jianjun Zhang, Qiang Xia
BACKGROUND: An atretic or hypoplastic portal vein (PV) represents a challenge for PV reconstruction in pediatric living donor liver transplantation (LDLT). Several PV venoplastic techniques have been developed. However, we still seek improved venoplastic techniques with better efficacy and compatibility. METHOD: From June 2016 to July 2017, 271 LDLT procedures were performed at the Department of Liver Surgery, Ren Ji Hospital. A total of 16 consecutive children with atretic and sclerotic PVs underwent a novel technique - the autogenous PV patch plastic technique...
January 12, 2018: Liver Transplantation
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