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https://www.readbyqxmd.com/read/29351688/three-hand-endoscopic-endonasal-transsphenoidal-surgery-experience-with-an-anatomy-preserving-mononostril-approach-technique
#1
Chikezie I Eseonu, Karim ReFaey, Eva Pamias-Portalatin, Javier Asensio, Oscar Garcia, Kofi D Boahene, Alfredo Quiñones-Hinojosa
BACKGROUND: Variations on the endoscopic transsphenoidal approach present unique surgical techniques that have unique effects on surgical outcomes, extent of resection (EOR), and anatomical complications. OBJECTIVE: To analyze the learning curve and perioperative outcomes of the 3-hand endoscopic endonasal mononostril transsphenoidal technique. METHODS: Prospective case series and retrospective data analysis of patients who were treated with the 3-hand transsphenoidal technique between January 2007 and May 2015 by a single neurosurgeon...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29343888/medial-femoral-condyle-vascularised-corticoperiosteal-graft-a-suitable-choice-for-scaphoid-non-union
#2
Samir Kumta, Sudhir Warrier, Leena Jain, Rani Ummal, Manik Menezes, Shrirang Purohit
Introduction: Scaphoid fractures are not very common and frequently remain undiagnosed, presenting in non-union and persistent wrist pain. Options for scaphoid fracture treatment have been described over several decades, however, none with an optimal solution to achieve union along with good hand function. We describe here, the use of vascularised corticoperiosteal bone grafts from the medial femoral condyle (MFC) as a solution for the difficult problem of scaphoid fracture non-union...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29303923/flexor-tendon-injuries
#3
Christopher S Klifto, John T Capo, Anthony Sapienza, S Steven Yang, Nader Paksima
Flexor tendon injuries of the hand are uncommon, and they are among the most challenging orthopaedic injuries to manage. Proper management is essential to ensure optimal outcomes. Consistent, successful management of flexor tendon injuries relies on understanding the anatomy, characteristics and repair of tendons in the different zones, potential complications, rehabilitation protocols, recent advances in treatment, and future directions, including tissue engineering and biologic modification of the repair site...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29291241/pseudoneglect-in-visual-search-behavioral-evidence-and-connectional-constraints-in-simulated-neural-circuitry
#4
Onofrio Gigliotta, Tal Seidel Malkinson, Orazio Miglino, Paolo Bartolomeo
Most people tend to bisect horizontal lines slightly to the left of their true center (pseudoneglect) and start visual search from left-sided items. This physiological leftward spatial bias may depend on hemispheric asymmetries in the organization of attentional networks, but the precise mechanisms are unknown. Here, we modeled relevant aspects of the ventral and dorsal attentional networks (VAN and DAN) of the human brain. First, we demonstrated pseudoneglect in visual search in 101 right-handed psychology students...
November 2017: ENeuro
https://www.readbyqxmd.com/read/29259334/the-comeback-of-hand-drawing-in-modern-life-sciences
#5
Renaud Chabrier, Carsten Janke
Scientific manuscripts are full of images. Since the birth of the life sciences, these images were in a form of hand drawings, with great examples from da Vinci, Hooke, van Leeuwenhoek, Remak, Buffon, Bovery, Darwin, Huxley, Haeckel and Gray's Anatomy to name a few. However, in the course of the past century, photographs and simplified schematics have gradually taken over as a way of illustrating scientific data and concepts, assuming that these are 'accurate' representations of the truth. Here, we argue for the importance of reviving the art of scientific drawings as a way of effectively communicating complex scientific ideas to both specialists and the general public...
December 20, 2017: Nature Reviews. Molecular Cell Biology
https://www.readbyqxmd.com/read/29250650/pv-1-expression-could-distinguish-the-subset-of-caveolae-presenting-telocytes-that-are-endothelial-progenitors
#6
Alexandra Diana Vrapciu, Mugurel Constantin Rusu
Telocytes (TCs) are stromal cells with characteristic long, thin and moniliform prolongations termed telopodes. They were formerly termed interstitial Cajal-like cells. A characteristic set of markers to identify TCs in light microscopy has not been established until now. Transmission electron microscopy (TEM) is a better tool for identifying TCs. Telocytes display caveolae and can express caveolin-1. On the other hand, endothelial cells (ECs) as well as endothelial progenitor cells (EPCs) have caveolae. Recent evidence suggests that a subset of TCs are in fact EPCs...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29242798/anterior-elbow-pain-caused-by-compression-of-the-lateral-antebrachial-cutaneous-nerve
#7
Sean M Booth, Abdulbaset Abosala, Chris Peach
Introduction: The complex anatomy and biomechanics of the elbow joint can lead to diagnostic uncertainty when a clinician is determining the cause of a patient's anterior elbow pain. We present a case of anterior elbow pain with an uncommon and often overlooked etiology. Elbow pain due to compression of the lateral antebrachial nerve (LACN) has an unknown incidence or prevalence. Case Report: A 27-year-old left-hand dominant male presented to our orthopedic elbow clinic complaining of bilateral elbow clicking and discomfort which had been present for several years...
September 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29241843/quantifying-the-effect-of-diabetes-on-surgical-hand-and-forearm-infections
#8
Ketan Sharma, Deng Pan, James Friedman, Jenny L Yu, Aaron Mull, Amy M Moore
PURPOSE: Diabetes has long been established as a risk factor for hand and forearm infections. The purpose of this study was to review the effect of glycemic factors on outcomes among diabetic patients with surgical upper-extremity infections. We hypothesized that diabetic inpatients may benefit from stronger peri-infection glycemic control. METHODS: A prospective cohort study enrolled diabetic and nondiabetic surgical hand and forearm infections over 3 years. Glycemic factors included baseline glycosylated hemoglobin, blood glucose (BG) at presentation, and inpatient BG...
December 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29240305/surgical-anatomy-of-the-round-window-implications-for-cochlear-implantation
#9
REVIEW
Jan Christoffer Luers, Karl-Bernd Hüttenbrink, Dirk Beutner
BACKGROUND: The round window is an important portal for the application of active hearing aids and cochlear implants. The anatomical and topographical knowledge about the round window region is a prerequisite for successful insertion for a cochlear implant electrode. OBJECTIVE OF REVIEW: To sum up current knowledge about the round window anatomy and to give advice to the cochlear implant surgeon for optimal placement of an electrode. TYPE OF REVIEW: Systematic Medline search...
December 14, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29232965/structural-and-functional-changes-in-the-somatosensory-cortex-in-euthymic-females-with-bipolar-disorder
#10
Luciano Minuzzi, Sabrina K Syan, Mara Smith, Alexander Hall, Geoffrey Bc Hall, Benicio N Frey
OBJECTIVE: Current evidence from neuroimaging data suggests possible dysfunction of the fronto-striatal-limbic circuits in individuals with bipolar disorder. Somatosensory cortical function has been implicated in emotional recognition, risk-taking and affective responses through sensory modalities. This study investigates anatomy and function of the somatosensory cortex in euthymic bipolar women. METHODS: In total, 68 right-handed euthymic women (bipolar disorder = 32 and healthy controls = 36) between 16 and 45 years of age underwent high-resolution anatomical and functional magnetic resonance imaging during the mid-follicular menstrual phase...
December 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/29224268/-applied-anatomy-study-of-posterior-approach-via-sacrectomy-for-reaching-the-deep-intrapelvic-sacral-plexus
#11
F Li, S F Wang, P C Li, Y H Xue
Objective: To observe the possibility of posterior approach via sacrectomy for reaching intrapelvic sacral plexus and expose the deep intrapelvic origin of sciatic nerve from sacral plexus in order to perform nerve graft. Methods: Five adult cadaver specimens were used in the study with prone position in May 2012. Cut off the gluteus maximus along the origins and lift to the lateral side, the piriformis was lay beneath. The sciatic nerve and the inferior gluteal nerve pierced from the infrapiriformis foramen in the operative field...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29209809/reduction-and-temporary-stabilization-of-tile-c-pelvic-ring-injuries-using-a-posteriorly-based-external-fixation-system
#12
Murphy P Martin, David Rojas, Cyril Mauffrey
Tile C pelvic ring injuries are challenging to manage even in the most experienced hands. The majority of such injuries can be managed using percutaneous reduction techniques, and the posterior ring can be stabilized using percutaneous transiliac-transsacral screw fixation. However, a subgroup of patients present with inadequate bony corridors, significant sacral zone 2 comminution or significant lateral/vertical displacement of the hemipelvis through a complete sacral fracture. Percutaneous strategies in such circumstances can be dangerous...
December 5, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29200069/visualization-improves-supraclavicular-access-to-the-subclavian-vein-in-a-mixed-reality-simulator
#13
Joshua Warren Sappenfield, William Brit Smith, Lou Ann Cooper, David Lizdas, Drew B Gonsalves, Nikolaus Gravenstein, Samsun Lampotang, Albert R Robinson
BACKGROUND: We investigated whether visual augmentation (3D, real-time, color visualization) of a procedural simulator improved performance during training in the supraclavicular approach to the subclavian vein, not as widely known or used as its infraclavicular counterpart. METHODS: To train anesthesiology residents to access a central vein, a mixed reality simulator with emulated ultrasound imaging was created using an anatomically authentic, 3D-printed, physical mannequin based on a computed tomographic scan of an actual human...
November 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29189885/invited-review-the-tale-of-ecirs-endoscopic-combined-intrarenal-surgery-in-the-galdakao-modified-supine-valdivia-position
#14
REVIEW
Cesare Marco Scoffone, Cecilia Maria Cracco
Modern-day percutaneous nephrolithotomy (PNL) has undergone considerable evolution, mainly driven by the improvement in access techniques, endoscopic instrumentation technology, lithotripsy devices and drainage management. The introduction of the supine and supine-modified positions is also part of this evolution, enabling comfortable and safe procedures from an anaesthesiological point of view, and an easy combined retrograde surgery [Endoscopic Combined IntraRenal Surgery (ECIRS)], allowing tailoring of the procedure on the patient, the dynamic anatomy of the collecting system and the urolithiasis...
November 30, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29184426/recommendations-for-volume-augmentation-and-rejuvenation-of-the-face-and-hands-with-the-new-generation-polycaprolactone-based-collagen-stimulator-ellans%C3%A3-%C3%A2
#15
REVIEW
Francisco de Melo, Pierre Nicolau, Luca Piovano, Shang-Li Lin, Tiago Baptista-Fernandes, Martyn I King, Alessandra Camporese, Kyungkook Hong, Maria M Khattar, Marie-Odile Christen
Background: The range of fillers currently available for soft-tissue augmentation is constantly expanding. The latest advances in filler technology include collagen biostimulators that exert their esthetic effect by promoting neocollagenesis. One such product is the next-generation collagen biostimulator (Ellansé®) that demonstrates properties as yet unseen in soft-tissue fillers. It is composed of polycaprolactone (PCL) microspheres in an aqueous carboxymethylcellulose gel carrier...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/29178622/revisiting-the-functional-anatomy-of-the-palmaris-longus-as-a-thenar-synergist
#16
Colin W Moore, Jacob Fanous, Charles L Rice
INTRODUCTION: Surgical studies describe the palmaris longus (PL) as a synergist in thumb abduction, which may facilitate its use in restoring thumb function using opponensplasty. However, beyond morphological descriptions and isometric thenar abduction strength measures, the evidence supporting the PL as a thenar synergist in-vivo is limited. The purpose here was to determine whether the PL provides synergistic contributions to thenar musculature by: (1) recording PL muscle activity using indwelling electromyography (EMG) during thumb movements; and (2) quantifying changes in PL muscle architecture using ultrasonography...
November 27, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29167718/preparation-prerequisites-for-effective-irrigation-of-apical-root-canal-a-critical-review
#17
REVIEW
Dimitrios Tziafas, Dana Alraeesi, Reem Al Hormoodi, Maamoun Ataya, Hessa Fezai, Nausheen Aga
Background: It is well recognized that disinfection of the complex root canal system at the apical root canal remains the most critical therapeutic measure to treat apical periodontitis. Material and Methods: Observational and experimental data in relation to the anatomy of the apical root canal in different tooth types and the cross sectional diameters of the apical part of the most commonly used hand and rotary files are critically reviewed. Results: The present data analysis confirm that the challenging issue of antibacterial efficacy of modern preparation protocols in non-surgical endodontics requires more attention to apical root canal irrigation as a balance between safety and effectiveness...
October 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29161923/recognizing-and-reacting-to-complications-of-trans-septal-puncture
#18
Francesca Salghetti, Juan Sieira, Gian-Battista Chierchia, Antonio Curnis, Carlo de Asmundis
The transseptal puncture (TSP) enables access to the left heart, through the fossa ovalis (FO), both in electrophysiology and in cardiac interventional procedures. TSP is usually safe in experienced hands. Sometimes TSP can be technically demanding and carries the risk of severe complications in approximately 1%. While performing a TSP, every effort should be taken in order to avoid complications. In the event of complications, prompt recognition and reaction are essential and a combined "heart-team" management may be the most effective approach...
November 22, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29155719/exploring-deep-space-uncovering-the-anatomy-of-periventricular-structures-to-reveal-the-lateral-ventricles-of-the-human-brain
#19
Alexandru S Colibaba, Aicee Dawn B Calma, Alexandra L Webb, Krisztina Valter
Anatomy students are typically provided with two-dimensional (2D) sections and images when studying cerebral ventricular anatomy and students find this challenging. Because the ventricles are negative spaces located deep within the brain, the only way to understand their anatomy is by appreciating their boundaries formed by related structures. Looking at a 2D representation of these spaces, in any of the cardinal planes, will not enable visualisation of all of the structures that form the boundaries of the ventricles...
October 22, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29136029/a-structural-review-of-foliar-glands-in-passiflora-l-passifloraceae
#20
Renata Cristina Cassimiro de Lemos, Delmira da Costa Silva, Gladys Flavia de Albuquerque Melo-de-Pinna
Extrafloral glands in Passifloraceae species have aroused the interest of many researchers because of their wide morphological diversity. The present work analyzed the foliar glands on 34 species of Passiflora from samples containing glands in the petiole and foliar blade fixed in 50% solution of formaldehyde-ethanol-acetic acid and stored in a 70% ethanol solution. For anatomical analyses, part of the material was embedded in Paraplast, longitudinally sectioned and double stained with safranin and astra blue...
2017: PloS One
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