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James Charles
BACKGROUND: In clinical and research settings, ankle joint dorsiflexion needs to be reliably measured. Dorsiflexion is often measured by goniometry, but the intrarater and interrater reliability of this technique have been reported to be poor. Many devices to measure dorsiflexion have been developed for clinical and research use. An evaluation of 12 current tools showed that none met all of the desirable criteria. The purpose of this study was to design and develop a device that rates highly in all of the criteria and that can be proved to be highly reliable...
September 2, 2016: Journal of the American Podiatric Medical Association
Victoria Jakobi, Paul Salmen, Michael Paulus, Metin Tolan, Axel Rosenhahn
In this work, the interaction of soy sauces with hydrophobic surfaces has been analyzed. Hydrophobic self-assembled monolayers on gold or silicon dioxide were used to harvest conditioning layers from soy sauce products with varying amounts of additives. The data was compared to adsorption of soy protein and glutamic acid as common ingredients. Spectral ellipsometry revealed that all tested sauces led to the formation of thin overlayers on hydrophobic surfaces. Products with less additives yielded adlayers in the same thickness range as pure soy protein...
March 1, 2017: Food Chemistry
R Garreta-Figuera, A Torrequebrada-Gimenez, En Representacion Del Grupo de Estudio 5e En Representacion Del Grupo de Estudio 5e
INTRODUCTION: Although spasticity is a disabling complication of high incidence, there is a lack of either regional or national epidemiological studies in Spain evaluating its management. AIM: To evaluate the management of spasticity in Spain. PATIENTS AND METHODS: An epidemiological, observational, multicenter, and retrospective study involving 49 rehabilitation services of public and private hospitals was designed. RESULTS: Two hundred and thirty-five patients from 49 centers, with evidence of upper (UL) or lower limb (LL) spasticity with one valid baseline visit and at least one follow-up visit, were included...
October 1, 2016: Revista de Neurologia
Ingrid Parry, Soman Sen, Kelly Sattler-Petrocchi, David Greenhalgh, Tina Palmieri
Cutaneous functional units (CFUs) are fields of skin that functionally contribute to range of motion (ROM) at an associated joint. When replaced with scar tissue, the skin is less extensible and may result in loss of movement at the joint. Consideration of the amount of CFU affected by burn injury is increasingly being used to predict the development of burn scar contracture (BSC) in burn survivors. Previous work established that, in adults, burn rehabilitation time per CFU was the greatest predictor of preventing BSC...
August 18, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
Amy L Walters, Stacy A Semevolos, Rose E Baker
OBJECTIVE To determine and compare mean standing extension and maximum flexion angles of various joints in healthy adult alpacas and llamas, and determine the reliability of goniometric data within and between 2 observers for each joint of interest. SAMPLE 6 healthy adult llamas and 6 healthy adult alpacas. PROCEDURES The shoulder joint, elbow joint, carpal, and metacarpophalangeal (MCP) joints of the forelimbs and the hip joint, stifle joint, tarsal, and metatarsophalangeal (MTP) joints of the hind limbs were investigated...
September 2016: American Journal of Veterinary Research
David A Upchurch, Walter C Renberg, James K Roush, George A Milliken, Mark L Weiss
OBJECTIVE To evaluate effects of simultaneous intra-articular and IV injection of autologous adipose-derived stromal vascular fraction (SVF) and platelet-rich plasma (PRP) to dogs with osteoarthritis of the hip joints. ANIMALS 22 client-owned dogs (12 placebo-treated [control] dogs and 10 treated dogs). PROCEDURES Dogs with osteoarthritis of the hip joints that caused signs of lameness or discomfort were characterized on the basis of results of orthopedic examination, goniometry, lameness score, the Canine Brief Pain Inventory (CBPI), a visual analogue scale, and results obtained by use of a pressure-sensing walkway at week 0 (baseline)...
September 2016: American Journal of Veterinary Research
Kevin D Han, Jaehon M Kim, Michael V DeFazio, Ricardo J Bello, Ryan D Katz, Brent G Parks, Kenneth R Means
PURPOSE: A high incidence of nonunion and relatively poor outcomes with prior fixation techniques has precluded scapholunate (SL) arthrodesis as a standard treatment for SL instability. Our purpose was to determine the impact on range of motion (ROM) of simulated SL arthrodesis via headless screw fixation. METHODS: We performed baseline wrist ROM for 10 cadaveric wrists using a standardized mounting-and-weights system. Extension, flexion, radial deviation, ulnar deviation, dart-thrower's extension, and dart-thrower's flexion were assessed...
September 2016: Journal of Hand Surgery
Landon D Nash, Nicole C Docherty, Mary Beth B Monroe, Kendal P Ezell, James K Carrow, Sayyeda M Hasan, Akhilesh K Gaharwar, Duncan J Maitland
Polyurethane shape memory polymer (SMP) foams are proposed for use as thrombogenic scaffolds to improve the treatment of vascular defects, such as cerebral aneurysms. However, gas blown SMP foams inherently have membranes between pores, which can limit their performance as embolic tissue scaffolds. Reticulation, or the removal of membranes between adjacent foam pores, is advantageous for improving device performance by increasing blood permeability and cellular infiltration. This work characterizes the effects of cold gas plasma reticulation processes on bulk polyurethane SMP films and foams...
August 29, 2016: Macromolecular Rapid Communications
M Mickevičius, S Rutkauskas, S Sipavičienė, A Skurvydas, J Jürimäe, H Degens, S Kamandulis
The aim of this study was to assess whether side-to-side differences in morphology and function of the upper limbs in 11-12 year-old male baseball players with throwing-related pain (n=14) were more pronounced than that of age-matched healthy untrained subjects (n=16). Baseball players 1) had played baseball≥4.5 h·wk(-1) for ≥ 4 years and (2) suffered from moderate-intensity (3-6 points on 10-point questionnaire scale) throwing-related pain in the shoulder or elbow in at least 2 training sessions within the past month...
August 23, 2016: International Journal of Sports Medicine
Hanna P Steinmetz, Safra Rudnick-Glick, Michal Natan, Ehud Banin, Shlomo Margel
There has been increased concern during the past few decades over the role bacterial biofilms play in causing a variety of health problems, especially since they exhibit a high degree of resistance to antibiotics and are able to survive in hostile environments. Biofilms consist of bacterial aggregates enveloped by a self-produced matrix attached to the surface. Ca(2+) ions promote the formation of biofilms, and enhance their stability, viscosity, and strength. Bisphosphonates exhibit a high affinity for Ca(2+) ions, and may inhibit the formation of biofilms by acting as sequestering agents for Ca(2+) ions...
November 1, 2016: Colloids and Surfaces. B, Biointerfaces
Dianne Little, Stephen Johnson, Jonathan Hash, Steven A Olson, Bradley T Estes, Franklin T Moutos, B Duncan X Lascelles, Farshid Guilak
BACKGROUND: The hip is one of the most common sites of osteoarthritis in the body, second only to the knee in prevalence. However, current animal models of hip osteoarthritis have not been assessed using many of the functional outcome measures used in orthopaedics, a characteristic that could increase their utility in the evaluation of therapeutic interventions. The canine hip shares similarities with the human hip, and functional outcome measures are well documented in veterinary medicine, providing a baseline for pre-clinical evaluation of therapeutic strategies for the treatment of hip osteoarthritis...
December 2016: Journal of Experimental Orthopaedics
Wenyan Duan, Avner Ronen, Sharon Walker, David Jassby
Electrically conducting membranes (ECMs) have been reported to be efficient in fouling prevention and destruction of aqueous chemical compounds. In the current study, highly conductive and anodically stable composite polyaniline-carbon nanotube (PANI-CNT) ultrafiltration (UF) ECMs were fabricated through a process of electropolymerization of aniline on a CNT substrate under acidic conditions. The resulting PANI-CNT UF ECMs were characterized by scanning electron microscopy, atomic force microscopy, a four-point conductivity probe, cyclic voltammetry, and contact angle goniometry...
August 31, 2016: ACS Applied Materials & Interfaces
Malek Amini, Aryan Shamili, Bijan Frough, Marzieh Pashmdarfard, AbolGhasem Fallahzadeh Abarghouei
BACKGROUND: Spasticity is one of the problems after a stroke. Due to this increase in muscle tone, patients are confronted with problems in motor control and difficulties in activities of daily living and complications such as shortness and contracture. The aim of this study was to examine the effects of the simultaneous use of both splint and botulinum toxin-A (BTX-A) injection on spasticity, range of motion and upper extremity function in a 3-month period. METHODS: In this study a comparison was done between three groups of interventions, conducted in rehabilitation clinics in Tehran...
2016: Medical Journal of the Islamic Republic of Iran
Chul Soon Park, Han Ju Lee, Dahye Lee, Andrew C Jamison, Eduard Galstyan, Wanda Zagozdzon-Wosik, Herbert C Freyhardt, Allan J Jacobson, T Randall Lee
A custom-designed semifluorinated phosphonic acid, (9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,16-heptadecafluorohexadecyl)phosphonic acid (F8H8PA), and a normal hexadecylphosphonic acid (H16PA) were synthesized and used to generate self-assembled monolayers (SAMs) on commercially available yttrium barium copper oxide (YBCO) tapes. In this study, we wished to evaluate the effectiveness of these monolayer films as coatings for selectively etching YBCO. Initial films formed by solution deposition and manual stamping using a non-patterned polydimethylsiloxane stamp allowed for a comparison of the film-formation characteristics...
August 30, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Minyu Xiao, Joshua Jasensky, Xiaoxian Zhang, Yaoxin Li, Cayla Pichan, Xiaolin Lu, Zhan Chen
The molecular structures of organic semiconducting thin films mediate the performance of various devices composed of such materials. To fully understand how the structures of organic semiconductors alter on substrates due to different polymer side chains and different interfacial interactions, thin films of two kinds of polythiophene derivatives with different side-chains, poly(3-hexylthiophene) (P3HT) and poly(3-potassium-6-hexanoate thiophene) (P3KHT), were deposited and compared on various surfaces. A combination of analytical tools was applied in this research: contact angle goniometry and X-ray photoelectron spectroscopy (XPS) were used to characterize substrate dielectric surfaces with varied hydrophobicity for polymer film deposition; X-ray diffraction and UV-vis spectroscopy were used to examine the polythiophene film bulk structure; sum frequency generation (SFG) vibrational spectroscopy was utilized to probe the molecular structures of polymer film surfaces in air and buried solid/solid interfaces...
August 10, 2016: Physical Chemistry Chemical Physics: PCCP
Michelle N Mann, Bella H Neufeld, Morgan J Hawker, Adoracion Pegalajar-Jurado, Lindsey N Paricio, Melissa M Reynolds, Ellen R Fisher
Tygon(®) and other poly(vinyl chloride)-derived polymers are frequently used for tubing in blood transfusions, hemodialysis, and other extracorporeal circuit applications. These materials, however, tend to promote bacterial proliferation which contributes to the high risk of infection associated with device use. Antibacterial agents, such as nitric oxide donors, can be incorporated into these materials to eliminate bacteria before they can proliferate. The release of the antimicrobial agent from the device, however, is challenging to control and sustain on timescales relevant to blood transport procedures...
2016: Biointerphases
Vincent M Rossi, Steven L Jacques
Goniometry and optical scatter imaging have been used for optical determination of particle size based upon optical scattering. Polystyrene microspheres in suspension serve as a standard for system validation purposes. The design and calibration of a digital Fourier holographic microscope (DFHM) are reported. Of crucial importance is the appropriate scaling of scattering angle space in the conjugate Fourier plane. A detailed description of this calibration process is described. Spatial filtering of the acquired digital hologram to use photons scattered within a restricted angular range produces an image...
June 13, 2016: Optics Express
Timothy J Lawton, Joshua R Uzarski, Shaun F Filocamo
The compatibility of multiple functions at a single interface is difficult to achieve, but is even more challenging when the functions directly counteract one another. This study provides insight into the creation of a simultaneously multifunctional surface formed by balancing two orthogonal functions; water repellency and enzyme catalysis. A partially fluorinated thiol is used to impart bulk hydrophobicity on the surface, and an N-hydroxysuccinimide ester-terminated thiol provides a specific anchoring sites for the covalent enzyme attachment...
August 16, 2016: Chemistry: a European Journal
Stephanie A Thomovsky, Annie V Chen, Alecia M Kiszonas, Lori A Lutskas
Purpose. To report the mean and median pelvic limb joint angles and girth measurements in miniature Dachshunds presenting with varying degrees of pelvic limb weakness secondary to thoracolumbar intervertebral disc extrusion. Methods. 15 miniature Dachshunds who presented to WSU-VTH for thoracolumbar disc extrusion. Dachshunds varied in neurologic status from ambulatory paraparetic to paraplegic at the time of measurements. Results. There were no significant differences in joint angles or girth among the three groups (ambulatory paraparetic, nonambulatory paraparetic, or paraplegic) (P > 0...
2016: Journal of veterinary medicine
Siamak Bashardoust Tajali, Joy C MacDermid, Ruby Grewal, Chris Young
STUDY DESIGN: Cross-sectional reliability and validity study. PURPOSE: 1. To determine intrarater, interrater and inter instrument reliabilities and validity of two digital electro goniometry to measure active wrist/finger range of motions (ROMs) in patients with limited motion. 2. To determine intrarater and interrater reliabilities of digital goniometry to measure torques of PIP passive flexion of the index finger in patients with limited motion. METHODS: The study was designed in a randomized block plan on 44 patients (24 women, 20 men) with limited wrist or hand motions...
2016: Open Orthopaedics Journal
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