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https://www.readbyqxmd.com/read/28231649/optimal-timing-for-hemoglobin-concentration-determination-after-total-knee-arthroplasty-day-1-versus-day-2
#1
Mahdi Yacine Khalfaoui, Charles Godavitarne, Michael C P Wilkinson
Purpose: Postoperative hemoglobin (Hb) determination remains an essential parameter for quantifying blood loss following total knee replacement (TKR) surgery and guiding transfusion practice. In this study we aimed to ascertain the optimal timing for Hb determination postoperatively and assess its relationship to serum hematocrit (Hct). Materials and Methods: This was a retrospective cohort analysis of 61 consecutive patients undergoing preoperative, day 1 and day 2 Hb and Hct concentration determination following TKR surgery...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28230973/unique-opto-electronic-structure-and-photo-reduction-properties-of-sulfur-doped-lead-chromates-explaining-their-instability-in-paintings
#2
Vanousheh Rahemi, Nasrin Sarmadian, Willemien Anaf, Koen Janssens, Dirk Lamoen, Bart Partoens, Karolien De Wael
Chrome yellow refers to a group of synthetic inorganic pigments that became popular as an artist's material from the second quarter of the 19th century. The color of the pigment, in which the chromate ion acts as a chromophore, is related to its chemical composition (PbCr1-xSxO4, with 0≤x≤0.8) and crystalline structure (monoclinic/orthorhombic). Their shades range from the yellow-orange to the paler yellow tones with increasing sulfate amount. These pigments show remarkable signs of degradation after limited time periods...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28230633/insights-into-cryotherapy-and-joint-bleeding-cryotherapy-and-hemophilia
#3
Roya Ravanbod, Giti Torkaman, Mehdi Hedayati, Mohammad Esmaeil Zandi Nezhad
There is some controversy over the use of cryotherapy. Low temperatures (Temp) could interfere with coagulation and increase the risk of bleeding. We sought to examine the effect of cryotherapy on joint swelling, temperature, friction, and inflammatory condition after experimental hemarthrosis. The left knee of 23 albino rabbits, 10 in heparin Ice, five in citrate Ice, four in heparin control, and four in citrate control were injected intraarticularly with 1 ml of blood. In total, four animals were considered to be in normal control group...
February 21, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28229984/anatomical-knee-variants-in-discoid-lateral-meniscal-tears
#4
Xu-Xu Chen, Jian Li, Tao Wang, Yang Zhao, Hui Kang
BACKGROUND: Discoid lateral meniscus was a common meniscal dysplasia and was predisposed to tear. There were some anatomical knee variants in patients with discoid lateral meniscus. The aim of this study was to analyze the relationship between anatomical knee variants and discoid lateral meniscal tears. METHODS: There were totally 125 cases of discoid lateral meniscus enrolled in this study from February 2008 to December 2013. Eighty-seven patients who underwent arthroscopic surgery for right torn discoid lateral meniscus were enrolled in the torn group...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28229166/-morphological-investigations-of-deep-sole-ulcers-in-cattle-part-2-toe-ulcers-white-line-disease-in-the-heel-and-changes-due-to-inappropriate-weight-bearing-and-deficient-claw-care
#5
Susanne Gehringer, Matthias Müller, Johann Maierl
OBJECTIVE: To demonstrate the morphology of pathological changes to the inner structures of the claw in cases of toe ulcers, white line disease in the heel and changes due to inappropriate weight bearing and deficient claw care. MATERIAL AND METHODS: Hind limbs of 55 cows displaying external signs of complicated sole ulcers were examined externally and internally. To examine the samples internally, a sagittal section was performed. Furthermore, the material was examined after bone maceration and histologically...
February 23, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28228047/visible-glove-perforation-in-total-knee-arthroplasty
#6
Lee Qunn Jid, Mak Wai Ping, Wong Yiu Chung, Wai Yuk Leung
PURPOSE: The risk of superficial surgical site infection (SSI) and periprosthetic joint infection (PJI) after glove perforation is not evident. This study was to identify risk factors for glove perforation in primary TKR (total knee replacement) and the risk of subsequent superficial SSI and PJI. METHODS AND MATERIALS: Results of visible glove perforation of both inner and outer gloves during TKR were reviewed. A case-control analysis was performed on the preoperative and operative variables to identify predictive risk factors for glove perforation...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28227883/development-and-validation-of-thums-version-5-with-1d-muscle-models-for-active-and-passive-automotive-safety-research
#7
Hideyuki Kimpara, Yuko Nakahira, Masami Iwamoto, Hideyuki Kimpara, Yuko Nakahira, Masami Iwamoto, Hideyuki Kimpara, Masami Iwamoto, Yuko Nakahira
Accurately predicting the occupant kinematics is critical to better understand the injury mechanisms during an automotive crash event. The objectives of this study were to develop and validate a finite element (FE) model of the human body integrated with an active muscle model called Total HUman Model for Safety (THUMS) version 5, which has the body size of the 50th percentile American adult male (AM50). This model is characterized by being able to generate a force owing to muscle tone and to predict the occupant response during an automotive crash event...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227706/skin-mounted-accelerometer-system-for-measuring-knee-range-of-motion
#8
Ryan S McGinnis, Shyamal Patel, Ikaro Silva, Nikhil Mahadevan, Steve DiCristofaro, Elise Jortberg, Melissa Ceruolo, A J Aranyosi, Ryan S McGinnis, Shyamal Patel, Ikaro Silva, Nikhil Mahadevan, Steve DiCristofaro, Elise Jortberg, Melissa Ceruolo, A J Aranyosi, A J Aranyosi, Melissa Ceruolo, Ikaro Silva, Steve DiCristofaro, Elise Jortberg, Ryan S McGinnis, Shyamal Patel, Nikhil Mahadevan
Sufficient range of motion of the knee joint is necessary for performing many activities of daily living. Ambulatory monitoring of knee function can provide valuable information about progression of diseases like knee osteoarthritis and recovery after surgical interventions like total knee arthroplasty. In this paper, we describe a skin-mounted, conformal, accelerometer-based system for measuring knee angle and range of motion that does not require a skilled operator to apply devices. We establish the accuracy of this technique with respect to clinical gold standard goniometric measurements on a dataset collected from normative subjects during the performance of repeated bouts of knee flexion and extension tests...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227688/development-of-a-finger-like-mechanism-of-end-effector-for-micro-surgery
#9
S M Kim, C M Park, J H Yoo, K Kim, S M Kim, C M Park, J H Yoo, K Kim, J H Yoo, K Kim, C M Park, S M Kim
Neurosurgery had been considered nearly impossible due to its technical difficulty and the danger to its special target organ, but with endoscopic methods, many such surgeries can be made safely through the nose. Endoscopic neurosurgery is limited by available instruments, however, and there remain some areas of the human body inaccessible to standard surgical tools. To overcome some of these limitations, in this study we developed a simple mechanism that could form a high curvature in a narrow space. The end product is a finger-like mechanism consisting of five body parts and four joints...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224064/anterior-horn-meniscal-repair-using-an-outside-in-suture-technique
#10
Travis J Menge, Chase S Dean, Jorge Chahla, Justin J Mitchell, Robert F LaPrade
The menisci are important structures within the knee that play a critical role in maintaining proper stability, load distribution, and joint lubrication. Injury to the menisci has been found to significantly alter the complex biomechanics of the knee, and thus affect the health and longevity of the native joint. Tears involving the anterior horn are increasingly recognized as an important pathology. Although early treatment of meniscal tears focused primarily on removal of the injured tissue, recent attention on the long-term consequences of partial or total meniscectomy has led to increased attempts at meniscus repair whenever possible...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28223263/apps-for-people-with-rheumatoid-arthritis-to-monitor-their-disease-activity-a-review-of-apps-for-best-practice-and-quality
#11
Rebecca Grainger, Hermaleigh Townsley, Bonnie White, Tobias Langlotz, William J Taylor
BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory arthritis requiring long-term treatment with regular monitoring by a rheumatologist to achieve good health outcomes. Since people with RA may wish to monitor their own disease activity with a smartphone app, it is important to understand the functions and quality of apps for this purpose. OBJECTIVE: The aim of our study was to assess the features and quality of apps to assist people to monitor their RA disease activity by (1) summarizing the available apps, particularly the instruments used for measurement of RA disease activity; (2) comparing the app features with American College of Rheumatology and European League against Rheumatism (ACR and EULAR) guidelines for monitoring of RA disease activity; and (3) rating app quality with the Mobile App Rating Scale (MARS)...
February 21, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28222918/receipt-of-pain-management-information-preoperatively-is-associated-with-improved-functional-gain-after-elective-total-joint-arthroplasty
#12
Celeste A Lemay, Courtland G Lewis, Jasvinder A Singh, Patricia D Franklin
BACKGROUND: Poorly controlled postoperative pain may adversely affect total joint arthroplasty (TJA) patients' outcomes and associated healthcare cost. Understanding effective pain management after surgery is important to patients, surgeons, and hospitals. We evaluated patient-reported receipt of preoperative pain management information in a national prospective cohort evaluating postoperative pain and function following elective TJA. METHODS: Preoperative and 2-week and 6-month postoperative survey data of 1609 TJA patients collected between June 2013 and December 2014 were analyzed...
January 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28221977/dietary-exposure-and-natural-occurrence-of-total-aflatoxins-in-basmati-rice-of-pakistan
#13
Nighat Sultana, Iffat Tahira, Mumtaz Kausar, Syed Mujahid Hassan, Nafeesa Qudsia Hanif
This study presents the assessment of total aflatoxins (TAFs) in basmati rice (brown, 1,081; white, 1,170) collected from different areas of Punjab, Pakistan, during 2010 to 2015. Due to the carcinogenicity of TAFs, daily dietary exposure is also evaluated based on rice consumption survey data. Methodology was standardized by matrix spike recoveries at four fortification levels (0.1, 0.5, 2.5, and 12.5 ng/g) for TAFs (aflatoxins B1 [AFB1], B2 [AFB2], G1 [AFG1], and G2 [AFG2]). The present study reveals that 1,750 samples (77...
February 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28221796/translational-entropy-and-dispersion-energy-jointly-drive-the-adsorption-of-urea-to-cellulose
#14
Pan Chen, Yoshiharu Nishiyama, Jakob Wohlert, Ang Lu, Karim Mazeau, Ahmed E Ismail
The adsorption of urea on cellulose at room temperature has been studied using adsorption isotherm experiments and molecular dynamics (MD) simulations. Immer5sion of cotton cellulose into bulk urea solutions with concentrations between 0.01 g/mL and 0.30 g/mL led to a decrease of urea concentration in all solutions, allowing the adsorption of urea on the cellulose surface to be measured quantitatively. MD sim8ulations suggest that urea molecules form sorption layers on both hydrophobic and hydrophilic surfaces...
February 21, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28220902/twist1-induces-mmp3-expression-through-up-regulating-dna-hydroxymethylation-and-promotes-catabolic-responses-in-human-chondrocytes
#15
Joe Hasei, Takeshi Teramura, Toshiyuki Takehara, Yuta Onodera, Takuro Horii, Merissa Olmer, Izuho Hatada, Kanji Fukuda, Toshifumi Ozaki, Martin K Lotz, Hiroshi Asahara
The objective was to investigate the levels of TWIST1 in normal and OA cartilage and examine its role in regulating gene expression in chondrocytes. Human cartilage tissues and chondrocytes were obtained at autopsy from normal knee joints and from OA-affected joints at the time of total knee arthroplasty. TWIST1 expression was increased in human OA knee cartilage compared to normal knee cartilage. TWIST1 induced matrix metalloproteinase 3 (MMP3) expression without direct binding to MMP3 promoter and increased the 5-hydroxymethylcytosine (5hmC) level at the MMP3 promoter...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219656/ultrasound-abnormalities-in-septic-arthritis-are-associated-with-functional-outcomes
#16
Emeline Gaigneux, Grégoire Cormier, Stéphane Varin, Oriane Mérot, Yves Maugars, Benoit Le Goff
OBJECTIVES: To describe the ultrasound abnormalities seen in septic arthritis and to assess their associations with clinical, biological, and radiological outcomes METHODS: We prospectively included 34 patients with septic arthritis of a native joint (knee, n=19; shoulder, n=6; hip, n=4; ankle, n=3; or wrist, n=2). Ultrasonography was performed to record synovial-membrane thickness and vascularity, joint effusion, and abnormalities of adjacent soft tissues, at baseline then 4 days, 2 weeks, and 3 months later...
February 17, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28219354/relationship-between-facet-tropism-and-facet-joint-degeneration-in-the-sub-axial-cervical-spine
#17
Xin Rong, Ziyang Liu, Beiyu Wang, Xuelin Pan, Hao Liu
BACKGROUND: Facet tropism is the angular asymmetry between the left and right facet joint orientation. Although debatable, facet tropism was suggested to be associated with disc degeneration, facet degeneration and degenerative spondylolisthesis in the lumbar spine. The purpose of this study was to explore the relationship between facet tropism and facet degeneration in the sub-axial cervical spine. METHODS: A total of 200 patients with cervical spondylosis were retrospectively analyzed...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28219307/comparative-evaluation-of-posterior-cruciate-ligament-in-total-knee-arthroplasty
#18
Yuan Ma, Wei-Jia Chen, Ryuji Nagamine
INTRODUCTION: It has been realized that for osteoarthritis (OA) knee with varus deformity, posterior cruciate ligament (PCL) release resulted in the increase of the flexion gap without significant effect on the extension gap. While the effect of release on gap angle is still obscure. On the other hand, gap distance and varus angle measured under different distraction forces suggest different patterns. OBJECTIVES: In the current study, mechanical gap balance in displacement and angular alternation of extension and flexion gaps will be evaluated, with PCL fully retained or resected under different distracting forces in varus knees...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28218272/decline-causes-of-koalas-in-south-east-queensland-australia-a-17-year-retrospective-study-of-mortality-and-morbidity
#19
Viviana Gonzalez-Astudillo, Rachel Allavena, Allan McKinnon, Rebecca Larkin, Joerg Henning
Koala populations are in catastrophic decline in certain eastern Australian regions. Spanning from 1997-2013, a database derived from wildlife hospitals in southeast Queensland with N = 20,250 entries was classified by causes of morbidity and mortality. A total of 11 aetiologies were identified, with chlamydiosis, trauma, and wasting being most common. The clinical diagnosis at submission varied significantly over the observation period. Combinations of aetiologies were observed in 39% of koalas submitted, with chlamydiosis frequently co-occurring...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28218006/do-tmj-symptoms-improve-and-last-across-time-after-treatment-with-red-660-nm-and-infrared-790-nm-low-level-laser-treatment-lllt-a-survival-analysis
#20
Dhelfeson Willya Douglas De Oliveira, Frederico Santos Lages, Raphael Castro Guimarães, Túlio Silva Pereira, Adriana Maria Botelho, José Cristiano Ramos Glória, Karine Taís Aguiar Tavano, Patricia Furtado Gonçalves, Olga Dumont Flecha
OBJECTIVE: Temporomandibular disorder (TMD) is a variety of clinical problems that originate from the area of the temporomandibular joint (TMJ), masticatory muscles, and surrounding tissues. There are different treatment options; however, there is no evidence that low level laser treatment (LLLT) will last about six months. The aim of this study was to determine the survival rate of treatment with red (660 nm) and infrared (790 nm) laser in cases of TMDs. METHODS: In 19 subjects, one side of the face (half face) was randomly selected to receive intervention, in a total of 116 sensitive points...
February 20, 2017: Cranio: the Journal of Craniomandibular Practice
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