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https://www.readbyqxmd.com/read/28213934/transverse-process-anatomy-as-a-guide-to-vertebral-artery-exposure-during-anterior-cervical-spine-approach-a-cadaveric-study
#1
Ali Nourbakhsh, Jinping Yang, Howard McMahan, Kim Garges
INTRODUCTION: Safe exposure of the vertebral artery (VA) is needed during resection of tumors close to the artery and during repair of lacerations. We defined the anatomy of the anterior root of each transverse process (TP) from C3 to C6 for identification and exposure of the VA during the anterior approach. MATERIALS AND METHODS: We examined the anatomy of the TP and assessed two approaches for safe identification of the VA, lateral to medial and medial to lateral dissection of the TP, in 20 cadavers...
February 18, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28198973/influence-of-niti-alloy-on-the-root-canal-shaping-capabilities-of-the-protaper-universal-and-protaper-gold-rotary-instrument-systems
#2
Jussaro Alves Duque, Rodrigo Ricci Vivan, Bruno Cavalini Cavenago, Pablo Andrés Amoroso-Silva, Ricardo Affonso Bernardes, Bruno Carvalho de Vasconcelos, Marco Antonio Hungaro Duarte
Objective: This study aimed to evaluate the influence of the NiTi wire in Conventional NiTi (ProTaper Universal PTU) and Controlled Memory NiTi (ProTaper Gold PTG) instrument systems on the quality of root canal preparation. Material and Methods: Twelve mandibular molars with separate mesial canals were scanned using a high-definition microcomputed tomography system. The PTU and PTG instruments were used to shape twelve mesial canals each. The canals were scanned after preparation with F2 and F3 instruments of the PTU and PTG systems...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28198970/is-the-bonding-of-self-adhesive-cement-sensitive-to-root-region-and-curing-mode
#3
Thaynara Faelly Boing, Giovana Mongruel Gomes, João Carlos Gomes, Alessandra Reis, Osnara Maria Mongruel Gomes
Objectives: To evaluate the influence of two curing techniques on the degree of conversion (DC) of resin cements and on bond strength (BS) of fiber posts in different regions of root dentin. Material and Methods: Twenty single-rooted premolars were endodontically treated, and the post spaces were prepared. The roots were randomly divided into two groups (n=10), according to the activation mode of the resin cement RelyX™ U200 (3M ESPE Saint Paul, MN, USA): conventional (continuous activation mode) and soft-start activation mode (Ramp)...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28192269/anterior-transposition-of-anomalous-tortuous-vertebral-artery-causing-cervical-radiculopathy-a-report-of-2-cases-and-review-of-literature
#4
Doris D Wang, Jan-Karl Burkhardt, Stephen T Magill, Michael T Lawton
BACKGROUND: Cervical radiculopathy secondary to compression from vertebral artery (VA) tortuosity is a rare entity. OBJECTIVE: To describe successful transposition of tortuous VA loops causing cervical radiculopathy through an anterolateral approach. METHODS: Two patients with cervical radiculopathy (first case at C5-6 and second case at C3-4) secondary to anomalous VA loop compression underwent anterolateral approaches to the cervical spine for decompression and VA transposition...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28187501/anatomical-study-of-the-brachial-plexus-in-the-common-marmoset-callithrix-jacchus
#5
Kenji Emura, Takamitsu Arakawa, Toshio Terashima
To elucidate the forelimb phylogeny of primates, anatomical analysis of the brachial plexus in platyrrhines is beneficial. In the present study, six brachial plexuses and the surrounding arteries of four common marmosets were dissected. In five specimens, the brachial plexus consisted of five ventral rami from the fifth cervical nerve (C5) to the first thoracic nerve (T1). In one specimen, the ventral ramus of the fourth cervical nerve joined with the brachial plexus. In five specimens, the upper trunk was composed of C5 and the sixth cervical nerve (C6)...
February 10, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28186832/a-comprehensive-review-of-pulsed-radiofrequency-in-the-treatment-of-pain-associated-with-different-spinal-conditions
#6
Giancarlo Facchini, Paolo Spinnato, Giuseppe Guglielmi, Ugo Albisinni, Alberto Bazzocchi
OBJECTIVE: The objective of this review is to evaluate the efficacy of Pulsed Radiofrequency (PRF) treatment of pain associated with different spinal conditions. The mechanisms of action and biological effects are shortly discussed to provide the scientific basis for this radiofrequency modality. METHODS: We systematically searched for clinical studies on spinal clinical conditions using PRF. We searched the MEDLINE (PubMed) database. We classified the information in one table focusing on RCTs and other type of studies...
February 10, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28185331/follicular-lipidosis-in-a-dachshund-dog
#7
Marcia M Colodel, Bruno Pietroluongo, Ronaldo Lucas, Kenia B Gomes, Fabrizio Grandi
BACKGROUND: Follicular lipidosis is a rare disease, having only been reported in six Rottweiler dogs. The diagnosis of follicular lipidosis is confirmed by histopathological examination of the affected skin. OBJECTIVE: To report a case of follicular lipidosis in a dachshund dog. ANIMALS: A 13-month-old female dachshund dog, with hypotrichosis on the head and cervical region from 10 months of age. METHODS: Histological examination of skin biopsy specimens...
February 10, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28179925/scanning-electron-microscopic-evaluation-of-smear-layer-removal-using-isolated-or-interweaving-edta-with-sodium-hypochlorite
#8
Ângelo José da Silva Beraldo, Rogério Vieira Silva, Alberto Nogueira da Gama Antunes, Frank Ferreira Silveira, Eduardo Nunes
INTRODUCTION: The aim of this study was to verify the effect of alternating 2.5% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA) on the smear layer removal from root canal surfaces. METHODS AND MATERIALS: A total of 15 single-rooted human teeth, instrumented with ProTaper files, were randomly distributed in 3 groups. In group 1 (n=7) the canals were irrigated with 1 mL of 2.5% NaOCl between files and final irrigation was done with 1 mL of 2,5% NaOCl, followe by 1 mL of 17% EDTA, for a perio of 15 sec with new irrigtion of 1 mL of 2,5% NaOCl at each change of files...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179920/cbct-assessment-of-root-dentine-removal-by-gates-glidden-drills-and-two-engine-driven-root-preparation-systems
#9
Azade Harandi, Fatemeh Mohammadpour Maleki, Ehsan Moudi, Maryam Ehsani, Soraya Khafri
INTRODUCTION: The aim of this study was to compare the dentine removing efficacy of Gates-Glidden drills with hand files, ProTaper and OneShape single-instrument system using cone-beam computed tomography (CBCT). METHODS AND MATERIALS: A total of 39 extracted bifurcated maxillary first premolars were divided into 3 groups (n=13) and were prepared using either Gates-Glidden drills and hand instruments, ProTaper and OneShape systems. Pre- and post-instrumentation CBCT images were obtained...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28176604/c5-nerve-root-palsy-after-posterior-cervical-spine-surgery
#10
Fu-Min Pan, Shan-Jin Wang, Bin Ma, De-Sheng Wu
BACKGROUND: C5 palsy is a serious complication after cervical decompression surgery in which the patient shows a deterioration in power of the deltoid or biceps brachii by at least one grade in the manual muscle test without aggravation of lower extremity function. Although there are several hypotheses regarding the etiology of C5 palsy, the pathogenesis and preventive measures remain unidentified and many other controversies remain. OBJECTIVE: To systematically review the clinical features, risk factors, mechanism, and preventive measures of C5 palsy after posterior cervical decompression surgery...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28169954/nerve-root-compression-increases-spinal-astrocytic-vimentin-in-parallel-with-sustained-pain-and-endothelial-vimentin-in-association-with-spinal-vascular-reestablishment
#11
Jenell R Smith, Jasmine Lee, Beth A Winkelstein
STUDY DESIGN: Temporal immunohistochemistry analysis of spinal cord tissue from a rat model of cervical radiculopathy. OBJECTIVE: The goal was to measure spinal endothelial and astrocytic vimentin expression following a painful nerve root compression to define spinal cellular expression of vimentin in the context of pain. SUMMARY OF BACKGROUND DATA: The intermediate filament, vimentin, is expressed in a variety of cell types in the spinal cord and is modulated in response to neural pathologies...
February 6, 2017: Spine
https://www.readbyqxmd.com/read/28160857/eulophia-macrobulbon-an-orchid-with-significant-anti-inflammatory-and-antioxidant-effect-and-anticancerogenic-potential-exerted-by-its-root-extract
#12
Roswitha Schuster, Laura Zeindl, Wolfgang Holzer, Nattakanwadee Khumpirapang, Siriporn Okonogi, Helmut Viernstein, Monika Mueller
BACKGROUND: The Orchidaceae family is one of the largest families of flowering plants. Orchids are widely used for the traditional herbal medicine, acting as aphrodisiac, antisepic, antimicrobial, anti-cancer agent, etc. PURPOSE: This study was designed to elucidate the anti-inflammatory, antioxidant and cytotoxic potential of a 50% ethanolic extract of Eulophia macrobulbon roots (EME) in vitro, an orchid growing in Southern Asia. Furthermore, the main active compounds were isolated, and the bioactivity of the single constituents was determined...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28160364/peripheral-nerve-stimulation-of-brachial-plexus-nerve-roots-and-supra-scapular-nerve-for-chronic-refractory-neuropathic-pain-of-the-upper-limb
#13
Bénédicte Bouche, Marie Manfiotto, Philippe Rigoard, Jean Lemarie, Véronique Dix-Neuf, Michel Lanteri-Minet, Denys Fontaine
OBJECTIVES: We report the outcome of a consecutive series of 26 patients suffering from chronic medically-refractory neuropathic pain of the upper limb (including 16 patients with complex regional pain syndrome), topographically limited, treated by brachial plexus (BP) nerve roots or supra-scapular nerve (SSN) peripheral nerve stimulation (PNS). MATERIALS AND METHODS: The technique consisted in ultrasound-guided percutaneous implantation of a cylindrical lead (Pisces-Quad, Medtronic) close to the SSN or the cervical nerve roots within the BP, depending on the pain topography...
February 3, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28158157/successful-long-term-nerve-root-stimulation-for-chronic-neuropathic-pain-a-real-world-single-center-canadian-experience
#14
Adrian B Levine, David A Steven, Andrew G Parrent, Keith W MacDougall
BACKGROUND: Spinal cord stimulation (SCS) is a well-established treatment for chronic neuropathic pain in the lower limbs. However, some patients have pain in distributions that are difficult to target specifically and consistently with SCS. This often involves pain in the groin or upper limbs, or pain limited to a specific dermatome. We hypothesized that dorsal nerve root stimulation (DNRS) would provide similar pain relief for these patients, compared to our results using SCS. OBJECTIVES: In this study we report our experience treating patients with chronic neuropathic pain using SCS and DNRS...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28150051/atypical-presentation-of-a-cervical-synovial-cyst
#15
Daniela Linhares, João Lobo, Rui Pinto, Nuno Neves
INTRODUCTION: Synovial cysts of the cervical spine are rare. These lesions have been associated with other spinal conditions as osteoarthritis, spondylolisthesis, and disc degeneration, with authors postulating a possible link with segmental spinal instability. This study aims to describe an atypically presenting case of a cervical synovial cyst. CASE REPORT: A 65-year-old man presented with complaints of cervical radicular pain (VAS of 7) that evolved with development of paresthesia and muscular weakness, compatible with C8 right compression...
February 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28149466/effect-of-two-contemporary-root-canal-sealers-on-root-canal-dentin-microhardness
#16
Maram E Khallaf
BACKGROUND: Successful root canal treatment depends on proper cleaning, disinfecting and shaping of the root canal space. Pulpless teeth have lower dentin microhardness value compared to that of vital teeth. A material which can cause change in dentin composition may affect the microhardness. Thus the aim of this study was to evaluate and compare the effect of two root canal sealers on dentin microhardness. MATERIAL AND METHODS: Forty two single rooted teeth were selected and divided into 3 equal groups; Apexit, iRootSP and control groups (n=14) Each group was then divided into 2 subgroups according to the post evaluation period; 1 week and 2 months (n=7)...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28145995/dynamic-alterations-of-the-levels-of-tumor-necrosis-factor-%C3%AE-interleukin-6-and-interleukin-1%C3%AE-in-rat-primary-motor-cortex-during-transhemispheric-functional-reorganization-after-contralateral-seventh-cervical-spinal-nerve-root-transfer-following-brachial-plexus
#17
Ming-Jie Yang, Shuang Li, Chen-Song Yang, Xu-Jia Wang, Shi-Min Chang, Gui-Xin Sun
The transfer of a contralateral healthy seventh cervical spinal nerve root (cC7) to the recipient nerve in the injured side is considered a reliable and effective procedure for restoration of the physiological functions of an injured hand after brachial plexus root avulsion injury (BPAI). Growing evidence shows that the transhemispheric cortical reorganization is induced after cC7 nerve transfer surgery. However, little is known about the underlying molecular mechanism. Proinflammatory cytokines reportedly play an important role in the neural plasticity...
January 31, 2017: Neuroreport
https://www.readbyqxmd.com/read/28139512/shikani-optical-stylet-versus-macintosh-laryngoscope-for-intubation-in-patients-undergoing-surgery-for-cervical-spondylosis-a-randomized-controlled-trial
#18
Mao Xu, Xiao-Xi Li, Xiang-Yang Guo, Jun Wang
BACKGROUND: Airway management is critical in patients with cervical spondylosis, a population with a high incidence of difficult airway. Intubation with Shikani Optical Stylet (SOS) has become increasingly popular in difficult airway. We compared the effects of intubation with SOS versus Macintosh laryngoscope (MLS) in patients undergoing surgery for cervical spondylosis. METHODS: A total of 270 patients scheduled for elective surgery for cervical spondylosis of spinal cord and nerve root type from August 2012 to January 2016 were enrolled and randomly allocated to the MLS or SOS group by random numbers...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28134967/vertical-root-fractures-of-endodontically-treated-posterior-teeth-a-histologic-analysis-with-clinical-and-radiographic-correlates
#19
Thomas von Arx, Dieter Bosshardt
Vertical root fractures (VRFs) usually develop slowly, unnoticed by the patient until clinical signs and symptoms become apparent. In endodontically treated teeth, a VRF is a typical cause for extraction. The objective of the present study was the histologic analysis of VRFs in extracted, endodontically treated premolars and molars. In addition, clinical and radiographic findings of these VRF-affected teeth were retrospectively evaluated. Thirty extracted teeth with a clinically diagnosed VRF were embedded in methylmethacrylate...
2017: Swiss Dental Journal
https://www.readbyqxmd.com/read/28127160/incidence-of-apical-crack-initiation-during-canal-preparation-using-hand-stainless-steel-k-file-and-hand-niti-protaper-files
#20
Dileep Soni, Deepak Raisingani, Rachit Mathur, Nidha Madan, Suchita Visnoi
AIM: To evaluate the incidence of apical crack initiation during canal preparation with stainless steel K-files and hand protaper files (in vitro study). MATERIALS AND METHODS: Sixty extracted mandibular premo-lar teeth are randomly selected and embedded in an acrylic tube filled with autopolymerizing resin. A baseline image of the apical surface of each specimen was recorded under a digital microscope (80×). The cervical and middle thirds of all samples were flared with #2 and #1 Gates-Glidden (GG) drills, and a second image was recorded...
October 2016: International Journal of Clinical Pediatric Dentistry
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