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https://www.readbyqxmd.com/read/28538612/scleral-contact-lenses-in-an-academic-oculoplastics-clinic-epidemiology-and-emerging-considerations
#1
Harinder S Chahal, Marcela Estrada, Christine W Sindt, Jacob A Boehme, Mark A Greiner, Jeffrey A Nerad, Keith D Carter, Richard C Allen, Erin M Shriver
PURPOSE: To describe the role and efficacy of scleral contact lenses (SCLs) in the treatment of progressive keratopathy in patients who have undergone periocular surgical procedures, to investigate the financial impact of these surgical interventions, and to demonstrate the role of oculoplastic surgery in improving scleral contact lens fit. METHODS: A retrospective medical record review was performed to identify patients who both received SCLs and were examined by the oculoplastics service at the University of Iowa between January 1990 and December 2015...
May 22, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28533626/nonhealing-progressive-stress-fractures-of-the-foot-in-a-13-year-old-basketball-player-is-vitamin-k-deficiency-a-risk-factor
#2
Meral Bayramoğlu, Nuray Ünlütürk
[Purpose] To report an adolescent male basketball player with nonhealing stress fractures of the foot and discuss the probable factors. [Subject and Methods] A 13-year-old basketball player presented with right foot pain. He had been playing basketball for three years and practicing 5 days/week. He denied any increase in daily training intensity. Magnetic resonance imaging confirmed stress fractures of the cuboid and cuneiform, with mild edema of the soft tissues between the tarsal bones and tenosynovitis of the flexor hallucis and flexor digitorum longi...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28521941/developmental-mechanism-of-the-tarsus-in-insect-legs
#3
REVIEW
Tetsuya Kojima
Insects show a tremendous morphological variety and have been a subject of studying morphological evolution. In legs, the tarsus is especially variable in the number of subsegments (tarsal segments) and their proportion unlike other leg segments. Recent studies in Drosophila melanogaster have revealed details of the tarsal development: regionalization of the tarsal region through integration of regulatory network and its growth, determination of the joint-forming region in each segment through strict regulation of Notch activity, changes in tissue morphology through regulation of RhoGTPases regulators and localized cell death, and finally, the morphogenetic mechanism of the ball-and-socket joint between tarsal segments...
February 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28517034/comparative-musculoskeletal-anatomy-of-chameleon-limbs-with-implications-for-the-evolution-of-arboreal-locomotion-in-lizards-and-for-teratology
#4
Julia L Molnar, Raul E Diaz, Tautis Skorka, Grant Dagliyan, Rui Diogo
Chameleon species have recently been adopted as models for evo-devo and macroevolutionary processes. However, most anatomical and developmental studies of chameleons focus on the skeleton, and information about their soft tissues is scarce. Here, we provide a detailed morphological description based on contrast enhanced micro-CT scans and dissections of the adult phenotype of all the forelimb and hindlimb muscles of the Veiled Chameleon (Chamaeleo calyptratus) and compare these muscles with those of other chameleons and lizards...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28514509/the-dimensions-of-the-tarsal-sinus-and-canal-in-different-foot-positions-and-its-clinical-implications
#5
R P Kleipool, L Blankevoort, J M Ruijter, G M M J Kerkhoffs, R J Oostra
INTRODUCTION: This study presents a reference for the dimensions of the tarsal sinus and canal in healthy adults in different foot positions to facilitate understanding of the kinematics of the subtalar joint, the effect of an implant, and other clinical issues. MATERIALS AND METHODS: In a 3D CT stress test on 20 subjects, the right foot was forced into a neutral and eight different extreme foot positions while CT scans were obtained. The bones were segmented in the neutral foot position...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28507055/adhesion-and-friction-of-the-smooth-attachment-system-of-the-cockroach-gromphadorhina-portentosa-and-the-influence-of-the-application-of-fluid-adhesives
#6
Oliver Betz, Melina Frenzel, Michael Steiner, Martin Vogt, Malte Kleemeier, Andreas Hartwig, Benjamin Sampalla, Frank Rupp, Moritz Boley, Christian Schmitt
Two different measurement techniques were applied to study the attachment of the smooth foot pads of the Madagascar hissing cockroach Gromphadorhina portentosa The attachment of the non-manipulated adhesive organs was compared with that of manipulated ones (depletion or substitution by artificial secretions). From measurements of the friction on a centrifuge, it can be concluded that on nanorough surfaces, the insect appears to benefit from employing emulsions instead of pure oils to avoid excessive friction...
May 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28490954/pretarsus-structure-in-relation-to-climbing-ability-in-the-ants-brachyponera-sennaarensis-and-daceton-armigerum
#7
Johan Billen, Mohammed S Al-Khalifa, Rogério R Silva
We studied the external and internal pretarsus structure of the ants Brachyponera sennaarensis and Daceton armigerum in relation to their very different climbing ability. B. sennaarensis is a ground-dwelling species that is not able to climb vertical smooth walls. They have a pair of straight pretarsal claws with an average claw tip angle of 56 degrees, while the ventral tarsal surface lacks fine hairs that touch the substrate. They have no adhesive pad on the vestigial arolium, while the arolium gland is very small...
May 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28472011/multifocal-ocular-surface-squamous-neoplasia
#8
Swati Singh, Ruchi Mittal, Suryasnata Rath
A 64-year-old healthy female presented with a papillomatous limbal lesion involving 6 clock hours of superior limbus and diffuse involvement of upper tarsal conjunctiva of left eye of 6 months duration. Excision of superior limbal lesion on histopathology showed carcinoma in situ with focal breach in basement membrane and moderate degree of differentiation. The surgical base and margins were uninvolved. The tarsal lesion was initially treated with subconjunctival interferon alpha 2b (IFN alpha 2b) (3 cycles of IFN alpha 2b) with poor response...
May 2, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28468924/jumping-without-slipping-leafhoppers-hemiptera-cicadellidae-possess-special-tarsal-structures-for-jumping-from-smooth-surfaces
#9
Christofer J Clemente, Hanns Hagen Goetzke, James M R Bullock, Gregory P Sutton, Malcolm Burrows, Walter Federle
Many hemipteran bugs can jump explosively from plant substrates, which can be very smooth. We therefore analysed the jumping performance of froghoppers (Philaenus spumarius, Aphrophoridae) and leafhoppers (Aphrodes bicinctus/makarovi, Cicadellidae) taking off from smooth (glass) and rough (sandpaper, 30 µm asperity size) surfaces. On glass, the propulsive hind legs of Philaenus froghoppers slipped, resulting in uncontrolled jumps with a fast forward spin, a steeper angle and only a quarter of the velocity compared with jumps from rough surfaces...
May 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28468175/wiedemann-rautenstrauch-syndrome-with-bilateral-tarsal-kink-three-sutures-for-correction
#10
Muhammed Batur, Erbil Seven, Adnan Çinal, Tekin Yaşar
The authors describe a 5-month-old male infant with Wiedemann-Rautenstrauch syndrome, which is an extremely rare condition. He had tarsal kink in upper eyelids in both eyes. The authors treated bilateral tarsal kink with an everting suture via a transconjunctival approach under local anesthesia.
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28454504/venous-malformation-as-source-of-a-tarsal-tunnel-syndrome-treat-the-source-or-the-cause-of-the-complaints-a-case-report
#11
H Mufty, G A Matricali, S Thomis
Painful tarsal tunnel syndrome is a compression neuropathy with a variety of possible sources. As it presents a challenging differential diagnostic problem, it is often under-diagnosed. Among the intrinsic and extrinsic factors, varicose veins are the main source in case of a venous etiology. We report a case of a 39-year old male patient who presented with complaints of paresthesia and excessive pain of the right foot, especially the medial side. Further work up by ultrasonography, magnetic resonance imaging and electromyography revealed an extensive congenital venous malformation of the right lower limb with subsequent compression of the tibial nerve in the tarsal tunnel...
April 28, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28447855/the-arterial-anatomy-of-the-deltoid-ligament-a-cadaveric-study
#12
Jacob A Haynes, Michelle Gosselin, Brian Cusworth, Jeremy McCormick, Jeffery Johnson, Sandra Klein
BACKGROUND: There is an increasing interest in the operative treatment of deltoid ligament disruption in the setting of chronic ankle instability. Understanding the vascular anatomy of the deltoid complex is beneficial when considering operative procedures on the medial ankle and may provide insight into factors that lead to chronic deltoid insufficiency and ankle instability. METHODS: Thirty-two pairs of cadaveric specimens (64 total legs) were amputated below the knee, and the tibialis anterior, tibialis posterior, and peroneal arteries were injected with India ink and Ward's blue latex...
April 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28438780/penetration-route-of-the-selective-glucocorticoid-receptor-agonist-sa22465-and-betamethasone-into-rabbit-meibomian-gland-based-on-pharmacokinetics-and-autoradiography
#13
Nagayoshi Asano, Kenji Ueda, Kouichi Kawazu
Meibomian glands are tiny sebaceous glands embedded within specific types of dense connective tissues. This study investigated drug penetration into meibomian glands following a single topical administration in rabbits. We measured time-course concentrations of the selective glucocorticoid receptor agonist (SEGRA) SA22465 and betamethasone in lid margins, palpebral conjunctival epithelium, and meibomian glands following a single instillation using a newly established collection method. We also visualized the distribution of (14)C-SA22465 in eyelid tissue sections using micro-autoradiography...
April 24, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28438414/predictors-of-trachomatous-trichiasis-surgery-outcome
#14
Esmael Habtamu, Tariku Wondie, Sintayehu Aweke, Zerihun Tadesse, Mulat Zerihun, Bizuayehu Gashaw, Guadie S Wondimagegn, Hiwot D Mengistie, Saul N Rajak, Kelly Callahan, Helen A Weiss, Matthew J Burton
PURPOSE: Unfavorable outcomes after trachomatous trichiasis (TT) surgery are undermining the global trachoma elimination effort. This analysis investigates predictors of postoperative TT (PTT), eyelid contour abnormalities (ECAs), and granuloma in the 2 most common TT surgery procedures: posterior lamellar tarsal rotation (PLTR) and bilamellar tarsal rotation (BLTR). DESIGN: Secondary data analysis from a randomized, controlled, single-masked clinical trial. PARTICIPANTS: A total of 1000 patients with TT, with lashes touching the eye or evidence of epilation, in association with tarsal conjunctival scarring...
April 21, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28434057/predictive-control-of-intersegmental-tarsal-movements-in-an-insect
#15
Alicia Costalago-Meruelo, David M Simpson, Sandor M Veres, Philip L Newland
In many animals intersegmental reflexes are important for postural and movement control but are still poorly undesrtood. Mathematical methods can be used to model the responses to stimulation, and thus go beyond a simple description of responses to specific inputs. Here we analyse an intersegmental reflex of the foot (tarsus) of the locust hind leg, which raises the tarsus when the tibia is flexed and depresses it when the tibia is extended. A novel method is described to measure and quantify the intersegmental responses of the tarsus to a stimulus to the femoro-tibial chordotonal organ...
April 22, 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/28398291/fine-dissection-of-the-tarsal-tunnel-in-60-cases
#16
Y Yang, M L Du, Y S Fu, W Liu, Q Xu, X Chen, Y J Hao, Z Liu, M J Gao
The fine dissection of nerves and blood vessels in the tarsal tunnel is necessary for clinical operations to provide anatomical information. A total of 60 feet from 30 cadavers were dissected. Two imaginary reference lines that passed through the tip of the medial malleolus were applied. A detailed description of the branch pattern and the corresponding position of the posterior tibial nerve, posterior tibial artery, medial calcaneal nerve and medial calcaneal artery was provided, and the measured data were analyzed...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28394682/combined-treatment-of-diabetic-foot-ulcer-with-tarsal-tunnel-release-and-perilesional-injections-of-peripheral-blood-mononuclear-cells
#17
Emilio Trignano, Nefer Fallico, Gino Zingone, Corrado Rubino, Fabio di Pompeo santanelli, Gian Vittorio Campus
No abstract text is available yet for this article.
March 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28391980/histamine-h1-and-h4-receptor-expression-on-the-ocular-surface-of%C3%A2-patients-with-chronic-allergic-conjunctival-diseases
#18
Noriko Inada, Jun Shoji, Yukiko Shiraki, Hiroshi Aso, Satoru Yamagami
BACKGROUND: This study investigated the histamine H1 and H4 receptors mRNA (H1R and H4R, respectively) expression on the ocular surface of patients with chronic forms of allergic conjunctival diseases to determine whether they can serve as biomarkers for allergic inflammation in the conjunctiva. METHODS: We examined 19 patients with vernal or atopic keratoconjunctivitis (AKC/VKC group) and 15 healthy volunteers (control group). The AKC/VKC group was divided into active and stable stage subgroups...
April 5, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28385001/comparative-kinematic-gait-analysis-in-young-and-old-beagle-dogs
#19
Malin Lorke, Maray Willen, Karin Lucas, Martin Beyerbach, Patrick Wefstaedt, Hugo Murua Escobar, Ingo Nolte
Age-related involution in dogs involves loss of muscle mass and changes in connective tissue and articular cartilage. The aim of this study was to examine whether an age-related influence on joint mobility can be detected in the absence of diseases. Five young (Ø 2.0 years) and five old (Ø 10.4 years) healthy and sound Beagle dogs were measured during locomotion on a treadmill by computer-assisted gait analysis. Angles of the shoulder, elbow, carpal, hip, stifle and tarsal joints were analyzed, including joint angle progression curves, minimum and maximum joint angles and range of motion (ROM)...
April 6, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28373932/endoscopic-resection-of-dorsal-boss-of-the-second-and-third-tarsometatarsal-joints
#20
Tun Hing Lui
Dorsal boss of the foot also known as "tarsal boss," "dorsal exostosis," and "humped bone" is a bone spur that grows from one of the intertarsal or tarsometatarsal joints. It can occur with or without arthritis of the underlying joints. Surgery is indicated if the symptoms do not respond to conservative treatment. Excision of the dorsal boss with or without fusion of the underlying joint is the operative treatment of choice. We report an arthroscopic approach of resection of the dorsal exostosis. Arthroscopic arthrodesis if indicated can be performed through the same portals...
February 2017: Arthroscopy Techniques
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