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https://www.readbyqxmd.com/read/28535605/ultrasonography-of-the-ankle-joint
#1
Jung Won Park, Sun Joo Lee, Hye Jung Choo, Sung Kwan Kim, Heui-Chul Gwak, Sung-Moon Lee
Ankle disorders are a relatively common pathological condition, and ankle injuries account for Epub ahead of print approximately 14% of sports-related orthopedic emergency visits. Various imaging modalities can be used to make a diagnosis in cases of ankle pain; however, ultrasound (US) has several benefits for the evaluation of ankle pain, especially in the tendons, ligaments, and nerves of the ankle. The purpose of this article is to review the common causes of ankle pathology, with particular reference to US features...
April 5, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28533596/the-ratio-of-medial-and-lateral-hamstring-muscle-thickness-does-not-correlate-with-the-lateral-tibial-rotation-angle-in-the-standing-position-in-healthy-young-adults
#2
Dong-Soo Lee, Sung-Dae Choung, Seung-Won Lee, Hye Rim Suh, Jae-Hoon Shim
[Purpose] To investigate the relationship between the lateral tibial rotation angle during knee joint flexion and the medial and lateral hamstring muscle thickness ratio during knee joint extension while resting, doing nothing, in upright standing position. The lateral tibial torsion is an important factor of orthopedic knee joint diseases as well as other weight bearing joint diseases such as osteoarthritis, meniscus syndrome, anterior cruciate ligament rupture, etc. [Subjects and Methods] Thirty healthy young adults participated in this study...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28532092/cytocompatibility-studies-of-titania-doped-calcium-borosilicate-bioactive-glasses-in-vitro
#3
Rajkumar Samudrala, Abdul Azeem P, Vasudevarao Penugurti, Bramanandam Manavathi
The present study aims to elucidate the applications of Titania (TiO2) doped calcium borosilicate glass as a biocompatible material in regenerative orthopedic applications. In this context, we have examined the bioactivity of various concentrations of TiO2 doped glasses with the help of simulated body fluid (SBF). Cytocompatibility, cell proliferation, and protein expression studies revealed the potential candidature of TiO2 doped glasses on osteoblast cell lines (MG-63). We hypothesized that TiO2 doped calcium borosilicate glasses are most cytocompatible material for bone implants...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532076/sustained-drug-release-from-surface-modified-uhmwpe-for-acetabular-cup-lining-in-total-hip-implant
#4
R Manoj Kumar, Pallavi Gupta, Sandan Kumar Sharma, Akshat Mittal, Manish Shekhar, Vijayesh Kumar, B V Manoj Kumar, Partha Roy, Debrupa Lahiri
Despite sterilization and aseptic procedure, bacterial infection remains a key challenge in total hip arthroplasties. This fact emphasizes the urgent need for development of new implant systems, which should releases the drug in a controlled manner without sparing its mechanical and tribological properties. In this study, the lining material of the acetabular cup, in total hip implant, has been modified for sustained release of drugs, which should be available throughout the site of implantation to fight the post-operation bacterial infection...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531993/fabrication-mechanical-properties-and-in-vitro-degradation-behavior-of-newly-developed-znag-alloys-for-degradable-implant-applications
#5
M Sikora-Jasinska, E Mostaed, A Mostaed, R Beanland, D Mantovani, M Vedani
Zn and Zn-based alloys have been recognized as highly promising biodegradable materials for orthopedic implants and cardiovascular stents, due to their proved biocompatibility and, more importantly, lower corrosion rates compared to Mg alloys. However, pure Zn has poor mechanical properties. In this study, Ag is used as a promising alloying element to improve the mechanical properties of the Zn matrix as well as its biocompatibility and antibacterial properties. Accordingly, we design three ZnAg alloys with Ag content ranging from 2...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28529195/rapid-web-based-platform-for-assessment-of-orthopedic-surgery-patient-care-milestones-a-2-year-validation
#6
Kenneth R Gundle, Dayne T Mickelson, Arien Cherones, Jason Black, Doug P Hanel
OBJECTIVE: To determine the validity, feasibility, and responsiveness of a new web-based platform for rapid milestone-based evaluations of orthopedic surgery residents. SETTING: Single academic medical center, including a trauma center and pediatrics tertiary hospital. PARTICIPANTS: Forty residents (PG1-5) in an orthopedic residency program and their faculty evaluators. METHODS: Residents and faculty were trained and supported in the use of a novel trainee-initiated web-based evaluation system...
May 18, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28526159/anticoagulation-and-neuraxial-peripheral-anesthesia
#7
REVIEW
Mudit Kaushal, Ryan E Rubin, Alan D Kaye, Karina Gritsenko
Novel anticoagulants (NAGs) have emerged as the preferred alternatives to vitamin K antagonists. In patients being considered for regional anesthesia, these drugs present a layer of complexity in the preprocedure evaluation. There are no established tests to monitor anticoagulant activity and our experience is short with these drugs. These authors believe it is important to review the relevant hematology, orthopedics, and anesthesiology literature to provide a valuable reference for the clinician who is met with these challenges...
June 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/28525311/telerehabilitation-of-patients-with-injuries-of-the-lower-extremities
#8
Andriy I Tsvyakh, Andriy J Hospodarskyy
INTRODUCTION: Timely access to orthopedic rehabilitation is an important problem for the Ukrainian healthcare system. The international orthopedic community aims to achieve the best possible outcome for patient care by modifying rehabilitation methods and using telemedicine technology. The theme of this article is to discuss the integration of telemedicine technology in the rehabilitation of patients with injuries of the lower extremities. MATERIALS AND METHODS: Consecutive patients were recruited over a 2-year period...
May 19, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28515335/in-situ-bone-tissue-engineering-via-ultrasound-mediated-gene-delivery-to-endogenous-progenitor-cells-in-mini-pigs
#9
Maxim Bez, Dmitriy Sheyn, Wafa Tawackoli, Pablo Avalos, Galina Shapiro, Joseph C Giaconi, Xiaoyu Da, Shiran Ben David, Jayne Gavrity, Hani A Awad, Hyun W Bae, Eric J Ley, Thomas J Kremen, Zulma Gazit, Katherine W Ferrara, Gadi Pelled, Dan Gazit
More than 2 million bone-grafting procedures are performed each year using autografts or allografts. However, both options carry disadvantages, and there remains a clear medical need for the development of new therapies for massive bone loss and fracture nonunions. We hypothesized that localized ultrasound-mediated, microbubble-enhanced therapeutic gene delivery to endogenous stem cells would induce efficient bone regeneration and fracture repair. To test this hypothesis, we surgically created a critical-sized bone fracture in the tibiae of Yucatán mini-pigs, a clinically relevant large animal model...
May 17, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28511506/an-assessment-of-correlation-between-dermatoglyphic-patterns-and-sagittal-skeletal-discrepancies
#10
Susha Miriam George, Biju Philip, Deepika Madathody, Manu Mathew, Jose Paul, Johnson Prakash Dlima
INTRODUCTION: Investigators over years have been fascinated by dermatoglyphic patterns which has led to the development of dermatoglyphics as a science with numerous applications in various fields other than being the best and most widely used method for personal identification. AIM: To assess the correlation between dermatoglyphic patterns and sagittal skeletal discrepancies. MATERIALS AND METHODS: A total of 180 patients, aged 18-40 years, were selected from those who attended the outpatient clinic of the Deparment of Orthodontics and Dentofacial Orthopedics, Mar Baselios Dental College, Kothamangalam, Kerala, India...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28510331/isolation-of-ready-to-use-adipose-derived-stem-cell-asc-pellet-for-clinical-applications-and-a-comparative-overview-of-alternate-methods-for-asc-isolation
#11
Edoardo Raposio, Nicolò Bertozzi
Current literature does not offer a standardized method to isolate adipose-derived stem cells (ASCs) for clinical applications and hence clinical studies using ASCs often show inconsistent results. Most of these studies borrow laboratory or benchside-derived protocols, which are complex, time consuming, and involve the use of chemical, animal-derived reagents. In this unit we describe a relatively simple and faster isolation protocol that allows collection of a ready-to-use ASC pellet for clinical application...
May 16, 2017: Current Protocols in Stem Cell Biology
https://www.readbyqxmd.com/read/28508951/magnesium-ions-enhance-infiltration-of-osteoblasts-in-scaffolds-via-increasing-cell-motility
#12
Ki-Jung Kim, Sunkyung Choi, Yong Sang Cho, Seok-Jo Yang, Young-Sam Cho, Kee K Kim
Magnesium (Mg) ions are the most abundant intracellular divalent cations and play a pivotal role in numerous cellular processes. Biodegradable Mg-containing materials, including scaffolds, are promising candidates for orthopedic applications. Here, we investigated the effect of Mg ions on the cellular properties of osteoblasts. Cytotoxicity tests on osteoblasts confirmed that no cytotoxic effects were found up to a supplementing Mg ion concentration of 10 mM. Mg ions at a concentration of 5 mM increased the migration and invasiveness of osteoblasts...
June 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28508148/thermographic-skin-temperature-measurement-compared-with-cold-sensation-in-predicting-the-efficacy-and-distribution-of-epidural-anesthesia
#13
Arnoud A Bruins, Kay R J Kistemaker, Annemieke Boom, John H G M Klaessens, Rudolf M Verdaasdonk, Christa Boer
Due to the high rates of epidural failure (3-32%), novel techniques are required to objectively assess the successfulness of an epidural block. In this study we therefore investigated whether thermographic temperature measurements have a higher predictive value for a successful epidural block when compared to the cold sensation test as gold standard. Epidural anesthesia was induced in 61 patients undergoing elective abdominal, thoracic or orthopedic surgery. A thermographic picture was recorded at 5, 10 and 15 min following epidural anesthesia induction...
May 15, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28504808/outcome-of-reverse-shoulder-arthroplasty-for-patients-with-parkinson-s-disease-a-matched-cohort-study
#14
Michael C Cusick, Randall J Otto, Rachel E Clark, Mark A Frankle
Parkinson's disease (PD) is a progressive neurologic disorder that affects the musculoskeletal system. Currently, the use of reverse shoulder arthroplasty (RSA) for patients with PD has not been adequately studied. The authors sought to determine if RSA provided similar functional outcomes for patients with PD compared with a matched cohort of patients without PD. Between 2004 and 2011, 10 patients with PD (4 men, 6 women) underwent RSA. Patients with PD were matched to patients without PD at a 1:4 ratio based on age (average, 76 years; range, 63-85 years), sex (16 men, 24 women), preoperative diagnosis, and length of follow-up (average, 43 months; range, 24-128 months)...
May 15, 2017: Orthopedics
https://www.readbyqxmd.com/read/28502261/profiles-of-executive-function-across-children-with-distinct-brain-disorders-traumatic-brain-injury-stroke-and-brain-tumor
#15
Gabriel C Araujo, Tanya N Antonini, Vicki Anderson, Kathryn A Vannatta, Christina G Salley, Erin D Bigler, H Gerry Taylor, Cynthia Gerhardt, Kenneth Rubin, Maureen Dennis, Warren Lo, Mark T Mackay, Anne Gordon, Christine Hajek Koterba, Alison Gomes, Mardee Greenham, Keith Owen Yeates
OBJECTIVES: This study examined whether children with distinct brain disorders show different profiles of strengths and weaknesses in executive functions, and differ from children without brain disorder. METHODS: Participants were children with traumatic brain injury (N=82; 8-13 years of age), arterial ischemic stroke (N=36; 6-16 years of age), and brain tumor (N=74; 9-18 years of age), each with a corresponding matched comparison group consisting of children with orthopedic injury (N=61), asthma (N=15), and classmates without medical illness (N=68), respectively...
May 15, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28501353/beta-tricalcium-phosphate-for-orthopedic-reconstructions-as-an-alternative-to-autogenous-bone-graft
#16
P Hernigou, A Dubory, J Pariat, D Potage, F Roubineau, S Jammal, C H Flouzat Lachaniette
Autogenous bone graft (autograft) remains the gold standard in the treatment of many orthopedic problems. However, graft harvest can lead to perioperative morbidity and increased cost. We tested the hypothesis that an osteoconductive matrix, beta-tricalcium phosphate (β-TCP), would be a safe and effective alternative to autograft alone. Beta-tricalcium phosphate (β-TCP) is considered as one of the most promising biomaterials for bone reconstruction. This study analyzes the outcomes of patients who received β-TCP as bone substitutes in orthopedic surgery...
May 10, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28500999/effects-of-working-gas-pressure-on-zirconium-dioxide-thin-film-prepared-by-pulsed-plasma-deposition-roughness-wettability-friction-and-wear-characteristics
#17
M Berni, G Marchiori, A Gambardella, M Boi, M Bianchi, A Russo, A Visani, M Marcacci, P G Pavan, N F Lopomo
In joint arthroplasty one of the main issues related to the failure of prosthetic implants is due to the wear of the ultra-high molecular weight polyethylene (UHMWPE) component. Surface treatments and coatings have been recognized as enhancing methods, able to improve the tribological properties of the implants. Therefore, the main objective of this work was to investigate the possibility to fabricate yttria-stabilized zirconia (YSZ) coatings on a metal (AISI 316-L) substrate by means of Pulsed Electron Deposition, in order to improve the tribological behavior of the polymer-metal coupling, by reducing the initial wear of the UHMWPE component...
May 4, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28496410/clinical-applications-of-iso-inertial-eccentric-overload-yoyo%C3%A2-resistance-exercise
#18
REVIEW
Per A Tesch, Rodrigo Fernandez-Gonzalo, Tommy R Lundberg
In the quest for a viable non-gravity dependent method to "lift weights" in space, our laboratory introduced iso-inertial resistance (YoYo™) exercise using spinning flywheel(s), more than 25 years ago. After being thoroughly tested in individuals subjected to various established spaceflight analogs, a multi-mode YoYo™ exercise apparatus was eventually installed on the International Space Station in 2009. The method, applicable to any muscle group, provides accommodated resistance and optimal muscle loading through the full range of motion of concentric actions, and brief episodes of eccentric overload...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28494715/the-click-test-a-novel-tool-to-quantify-the-age-related-decline-of-fast-motor-sequencing-of-the-thumb
#19
Florian Bodranghien, Helene Mahé, Benjamin Baude, Mario U Manto, Yves Busegnies, Stéphane Camut, Christophe Habas, Peter Marien, Giovanni de Marco, Kim van Dun
BACKGROUND: The thumb plays a critical role for manual tasks during the activities of daily life and the incidence of neurological or musculoskeletal disorders affecting the voluntary movements of the thumb is high in the elderly. There is currently no tool to assess repetitive motor sequencing of the thumb during ageing. OBJECTIVES: To report a novel procedure (the Click Test) assessing the effects of ageing on fast motor sequencing of the thumb. METHODS: Healthy subjects (n = 252; mean age +/- SD: 49...
May 10, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28494433/electrospun-ultrathin-pbat-nhap-fibers-influenced-the-in-vitro-and-in-vivo-osteogenesis-and-improved-the-mechanical-properties-of-neoformed-bone
#20
Gabriela F Santana-Melo, Bruno V M Rodrigues, Edmundo da Silva, Ritchelli Ricci, Fernanda R Marciano, Thomas J Webster, Luana M R Vasconcellos, Anderson O Lobo
Combining polyester scaffolds with synthetic nanohydroxyapatite (nHAp), which is bioactive and osteoconductive, is a plausible strategy to improve bone regeneration. Here, we propose the combination of PBAT [poly(butylene-adipate-co-terephthalate)] and synthetic nHAp (at 3 and 5wt%). PBAT is a relatively a new polymer with low crystallinity and attractive biodegradability and mechanical properties for orthopedic applications, however, with a still underexplored potential for in vivo applications. Then, we performed a careful biological in vitro and in vivo set of experiments to evaluate the influence of PBAT containing two different nHAp loads...
April 27, 2017: Colloids and Surfaces. B, Biointerfaces
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