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https://www.readbyqxmd.com/read/28227682/development-of-ocular-viscosity-characterization-method
#1
Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung, David C C Lam, Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung, David C C Lam, David C C Lam, Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung
Glaucoma is the second leading cause for blindness. Irreversible and progressive optic nerve damage results when the intraocular pressure (IOP) exceeds 21 mmHg. The elevated IOP is attributed to blocked fluid drainage from the eye. Methods to measure the IOP are widely available, but methods to measure the viscous response to blocked drainage has yet been developed. An indentation method to characterize the ocular flow is developed in this study. Analysis of the load-relaxation data from indentation tests on drainage-controlled porcine eyes showed that the blocked drainage is correlated with increases in ocular viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28211795/a-murine-model-of-a-novel-surgical-architecture-for-proprioceptive-muscle-feedback-and-its-potential-application-to-control-of-advanced-limb-prostheses
#2
Tyler R Clites, Matthew Carty, Shriya Srinivasan, Anthony Zorzos, Hugh Herr
<i>Objective:</i> Proprioceptive mechanisms play a critical role in both reflexive and volitional lower extremity control. Significant strides have been made in the development of bionic limbs that are capable of bi-directional communication with the peripheral nervous system, but none of these systems have been capable of providing physiologically-relevant muscle-based proprioceptive feedback through natural neural pathways. In this study, we present the Agonist-antagonist Myoplastic Interface (AMI), a surgical approach with the capacity to provide graded kinesthetic feedback from a prosthesis through mechanical activation of native mechanoreceptors within residual agonist-antagonist muscle pairs...
February 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28205479/finger-trauma-due-to-surfing-a-case-series-and-analysis-of-fracture-patterns
#3
A C J Ruijs, L C Langenberg, J Rezzouk
BACKGROUND: The purpose of this study is to research the type of lesions to the hand and fingers in the sport of surfing. METHODS: All surfing related hand injuries reported to our hospital between January 2008 and September 2015 were analyzed. RESULTS: Thirty-seven patient files held a clear description of a trauma related to the surf sport. We found three finger sprains, five wounds needing suture, including one digital nerve lesion and one ring finger with flexor tendon injury, three fingertip amputations and twenty-six digital fractures...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28197624/-nerve-distribution-and-density-in-the-canine-hip-joint-capsule-comparison-of-healthy-and-dysplastic-hip-joints
#4
Felix Giebels, Andreas Prescher, Stefan Wagenpfeil, Arno Bücker, Sylvia Kinzel
OBJECTIVE: The hip-joint capsule is exposed to increased tension forces during canine hip dysplasia, resulting in inflammation of the capsular tissue. It has been postulated that inflammation is associated with an increased nerve-distribution density. Therefore, it could be supposed that the nerve-distribution density in the hip-joint capsule is higher in dogs with dysplastic hip compared to healthy dogs. MATERIAL AND METHODS: In 16 Labrador Retriever dogs that had been euthanised due to unrelated reasons, the hip joints were classified as normoplastic (group 1, n = 18) or dysplastic (group 2, n = 14) based on radiography...
February 15, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28192874/lateral-femoral-cutaneous-nerve-transposition-renaissance-of-an-old-concept-in-the-light-of-new-anatomy
#5
Amgad Hanna
INTRODUCTION: Meralgia paresthetica causes pain in the anterolateral thigh. Most surgical procedures involve nerve transection or decompression. We conducted a cadaveric study to determine the feasibility of lateral femoral cutaneous nerve (LFCN) transposition. MATERIALS AND METHODS: In three cadavers, the LFCN was exposed in the thigh and retroperitoneum. The two layers of the LFCN canal superficial and deep to the nerve were opened. The nerve was then mobilized medially away from the ASIS, by cutting the septum medial to sartorius...
February 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28182823/how-to-direct-the-neuronal-growth-process-in-peripheral-nerve-regeneration-future-strategies-for-nanosurfaces-scaffold-and-magnetic-nanoparticles
#6
Andrea Poggetti, Pietro Battistini, Paolo Domenico Parchi, Michela Novelli, Simona Raffa, Marco Cecchini, Anna Maria Nucci, Michele Lisanti
Currently, the gold standard to repair large nerve defects is the autologous nerve graft. These solutions offer a mechanical support, adhesion substrates, and, with Schwann cells (SC), a source of neurotropic factors for axonal growth. The technical limits are the donor side damage, multiple surgical accesses, and the unavailability of large amounts of grafts. In recent years, several researchers focused their attention on the interaction between cells (nervous and glial) and physic-chemical cues that arise from the extracellular milieu...
February 7, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28177707/dietary-fish-oil-delays-hypoxic-skeletal-muscle-fatigue-and-enhances-caffeine-stimulated-contractile-recovery-in-the-rat-in-vivo-hindlimb
#7
Gregory E Peoples, Peter L McLennan
Oxygen efficiency influences skeletal muscle contractile function during physiological hypoxia. Dietary fish oil, providing docosahexaenoic acid (DHA), reduces the oxygen cost of muscle contraction. This study used autologous perfused rat hindlimb model to examine the effects of a fish oil diet on skeletal muscle fatigue during an acute hypoxic challenge. Male Wistar rats were fed a diet rich in saturated fat (SF), long chain (LC) n-6 polyunsaturated fatty acids (n-6 PUFA), or LC n-3 PUFA DHA from fish oil (FO) (8weeks)...
January 26, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28171867/analysis-of-the-interleukin-6-174-locus-polymorphism-and-serum-il-6-levels-with-the-severity-of-normal-tension-glaucoma
#8
Ching-Yu Wang, Chiao-Ying Liang, Shih-Chao Feng, Keng-Hung Lin, Hsin-Nung Lee, Ying-Cheng Shen, Li-Chen Wei, Chia-Jen Chang, Min-Yen Hsu, Yi-Yin Yang, Chun-Hung Chiu, Chun-Yuan Wang
PURPOSE: In normal tension glaucoma (NTG), factors other than elevated intraocular pressure are likely to have a role in the pathogenesis of optic neuropathy. Recent studies of glaucoma or retinal ganglion cells (RGCs) reveal that the cytokine interleukin-6 (IL-6) is linked to the pathogenesis of glaucoma and may regulate RGC survival or death. The IL-6 (-174) G allele has also been shown to increase the IL-6 protein. We hypothesized that the IL-6 (-174) polymorphism may be a predisposing genetic factor affecting the severity of glaucoma...
February 8, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28167971/glucose-metabolic-changes-in-the-brain-and-muscles-of-patients-with-nonspecific-neck-pain-treated-by-spinal-manipulation-therapy-a-18-f-fdg-pet-study
#9
Akie Inami, Takeshi Ogura, Shoichi Watanuki, Md Mehedi Masud, Katsuhiko Shibuya, Masayasu Miyake, Rin Matsuda, Kotaro Hiraoka, Masatoshi Itoh, Arlan W Fuhr, Kazuhiko Yanai, Manabu Tashiro
Objective. The aim of this study was to investigate changes in brain and muscle glucose metabolism that are not yet known, using positron emission tomography with [(18)F]fluorodeoxyglucose ([(18)F]FDG PET). Methods. Twenty-one male volunteers were recruited for the present study. [(18)F]FDG PET scanning was performed twice on each subject: once after the spinal manipulation therapy (SMT) intervention (treatment condition) and once after resting (control condition). We performed the SMT intervention using an adjustment device...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28162886/dislocation-following-reverse-total-shoulder-arthroplasty
#10
Eitan M Kohan, Peter N Chalmers, Dane Salazar, Jay D Keener, Ken Yamaguchi, Aaron M Chamberlain
BACKGROUND: The etiology of instability following reverse total shoulder arthroplasty (RTSA) remains incompletely understood. The purpose of this study was to describe the shared characteristics, etiologies, and outcomes of early and late dislocations requiring operative revision. METHODS: We identified all patients at our institution who underwent operative revision of an RTSA for instability. Baseline demographic, clinical, and radiographic data were collected...
February 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28159327/non-invasive-transcutaneous-supraorbital-neurostimulation-tsns-using-cefaly-%C3%A2-device-in-prevention-of-primary-headaches
#11
Anna Przeklasa-Muszyńska, Kinga Skrzypiec, Magdalena Kocot-Kępska, Jan Dobrogowski, Maciej Wiatr, Joanna Mika
Headaches are one of the most common pain syndromes experienced by adult patients. International Classification of Headache Disorders identifies about 300 different entities. Primary headaches (migraine, tension-type headache, trigeminal autonomic cephalalgias, other primary headaches) has the common occurrence. Although effective treatment of these disorders is possible, it is inefficient or poorly tolerated in some patients. Neuromodulation methods, being element of multimodal treatment, provide an additional treatment option in pharmacotherapy-refractory patients...
January 20, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28124109/decompression-endoscopic-surgery-for-frontal-secondary-headache-attributed-to-supraorbital-and-supratrochlear-nerve-entrapment-a-comprehensive-review
#12
REVIEW
Boris Filipović, J Alexander de Ru, Rick van de Langenberg, Pepijn A Borggreven, Zdravko Lacković, Peter J F M Lohuis
In the last decade, a new surgical treatment modality was developed for frontal secondary headache, based on the assumption that the trigger of this pain entity is the entrapment of peripheral sensory nerves. The surgery entails a procedure, where an endoscopic approach is used to decompress the supraorbital and supratrochlear nerve branches, which are entrapped by the periosteum in the region of the corrugator supercilii muscle. Candidates for the surgery define their headache as moderate to severe persistent daily pressure or tension, localized in the frontal area, sometimes accompanied by symptoms of nausea and photophobia mimicking a primary headache-migraine...
January 25, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28122939/relationship-of-the-lateral-rectus-muscle-the-supraorbital-nerve-and-binocular-coordination-with-episodic-tension-type-headaches-frequently-associated-with-visual-effort
#13
Anxo Cachinero-Torre, Belén Díaz-Pulido, Ángel Asúnsolo-Del-Barco
 To study the relationship between tension-type headaches and the oculomotor system in terms of binocular coordination, mechanosensitivity of the supraorbital nerve, and myofascial trigger points in the lateral rectus muscle, assessing the influence of visual effort caused by using a computer at work. DESIGN : Observational study with blind evaluation of the response variable. METHODS : Two groups were compared: 19 subjects with tension-type headaches and 16 healthy subjects, both exposed to computer use at work...
January 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28121717/normal-tension-glaucoma-masqueraders-detection-using-optical-coherence-tomography
#14
Debbie S Kuo, Sanjay Asrani
PURPOSE: Optical coherence tomography (OCT) has become an important tool in the diagnosis and management of glaucoma; however, there can be overlap in the OCT findings between glaucoma and other diseases. We describe the clinical examination finings and interpretation of OCT imaging that led to the diagnosis of glaucoma masqueraders in a clinical case series. MATERIALS AND METHODS: Four adult patients seen in the glaucoma clinic at the Duke Eye Center were included in a retrospective observational case series...
January 24, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28107855/a-close-look-at-an-integrative-treatment-package-for-bell-s-palsy-in-korea
#15
Seung Min Kathy Lee, Suji Lee, Jun Hyeong Park, Jongbae J Park, Sanghoon Lee
OBJECTIVE: To provide an overview of the integrative treatment package for Bell's palsy provided at Kyung Hee University Korean Medicine Hospital (KHU KMH). SUMMARY: The Facial Palsy Center at KHU KMH has been providing integrative treatment for Bell's palsy patients during the past three decades. Within 72 h of symptom onset, corticosteroids are recommended but complementary treatment including acupuncture and herbal medicine can be used to help suppress inflammation and nerve degeneration...
February 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28079654/retinal-oximetry-in-subjects-with-glaucomatous-hemifield-asymmetry
#16
Zhu Li Yap, Charles Ong, Yi Fang Lee, Andrew Tsai, Clarissa Cheng, Monisha E Nongpiur, Shamira A Perera
PURPOSE: Although some studies suggest a strong link between retinal vessel oxygenation and damage to the retinal nerve fiber layer (RNFL) seen in glaucoma, it has yet to be conclusively proven. This study compares intraocular retinal oximetry in glaucomatous eyes displaying asymmetrically affected hemifields across different subgroups of glaucoma, namely primary angle closure glaucoma (PACG), primary open-angle glaucoma (POAG), and normal tension glaucoma (NTG). METHODS: In this prospective cross-sectional study, 99 patients (PACG, n=28; POAG, n=37; NTG, n=34) underwent retinal oxygenation and vessel caliber measurements using the Oxymap T1 Retinal Oximeter, Cirrus optical coherence tomography, and Humphrey visual field testing...
January 10, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28073365/neurophthalmological-conditions-mimicking-glaucomatous-optic-neuropathy-analysis-of-the-most-common-causes-of-misdiagnosis
#17
Diego Torres Dias, Michele Ushida, Roberto Battistella, Syril Dorairaj, Tiago Santos Prata
BACKGROUND: To analyze the most common neurophthalmological conditions that may mimic glaucomatous optic neuropathy and to determine which most often lead to misdiagnosis when evaluated by a glaucoma specialist. METHODS: We reviewed the charts of consecutive patients with optic neuropathies caused by neurophthalmological conditions screened in a single Eye Clinic within a period of 24 months. Within these enrolled patients, we selected the eyes whose fundoscopic appearance could resemble glaucoma based in pre-defined criteria (vertical cup-to-disc ratio ≥0...
January 10, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28067182/successful-conservative-treatment-of-an-intracranial-pneumatocele-with-post-traumatic-hypoglossal-nerve-palsy-secondary-to-diffuse-temporal-bone-pneumocele-case-report-and-review-of-the-literature
#18
REVIEW
M A Taube, G M Potter, S K Lloyd, S R Freeman
BACKGROUND: A pneumocele occurs when an aerated cranial cavity pathologically expands; a pneumatocele occurs when air extends from an aerated cavity into adjacent soft tissues forming a secondary cavity. Both pathologies are extremely rare with relation to the mastoid. This paper describes a case of a mastoid pneumocele that caused hypoglossal nerve palsy and an intracranial pneumatocele. CASE REPORT: A 46-year-old man presented, following minor head trauma, with hypoglossal nerve palsy secondary to a fracture through the hypoglossal canal...
February 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28042118/post-operative-neuropathy-after-total-hip-arthroplasty
#19
REVIEW
E P Su
Nerve palsy is a well-described complication following total hip arthroplasty, but is highly distressing and disabling. A nerve palsy may cause difficulty with the post-operative rehabilitation, and overall mobility of the patient. Nerve palsy may result from compression and tension to the affected nerve(s) during the course of the operation via surgical manipulation and retractor placement, tension from limb lengthening or compression from post-operative hematoma. In the literature, hip dysplasia, lengthening of the leg, the use of an uncemented femoral component, and female gender are associated with a greater risk of nerve palsy...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28035702/refinements-of-nerve-repair-with-connector-assisted-coaptation
#20
REVIEW
Ivica Ducic, Bauback Safa, Erick DeVinney
Peripheral nerve repair can be very rewarding for both surgeon and patient when expected outcomes are achieved. In many cases, however, the results are suboptimal due to number of possible objective and technical reasons. Although we cannot influence patent's comorbidities, the extent or mechanism of the nerve injury, we may help optimize technical details when aiming towards improved outcomes. While the suture coaptation for primary nerve repair or nerve reconstruction with grafting served as the reconstructive standard for many decades, technical imperfections remain threats to reconstructive goals...
December 30, 2016: Microsurgery
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