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https://www.readbyqxmd.com/read/28622486/the-physiological-basis-of-cervical-facet-mediated-persistent-pain-basic-science-and-clinical-challenges
#1
Meagan E Ita, Sijia Zhang, Timothy P Holsgrove, Sonia Kartha, Beth A Winkelstein
Synopsis Chronic neck pain is common and a primary clinical symptom of whiplash and other spinal injuries. Loading-induced neck injuries produce abnormal kinematics between the vertebrae, with the potential to injure facet joints and the afferent fibers that innervate the specific joint tissues, including the capsular ligament. Mechanoreceptive and nociceptive afferents that innervate the facet have their peripheral terminals in the capsule, cell bodies in the dorsal root ganglia, and terminal processes in the spinal cord...
June 16, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28621833/multiple-external-cervical-root-resorptions-after-home-bleaching-treatment-with-22-carbamide-peroxide
#2
Glauco Rodrigues Velloso, Marcos Motta de Freitas, Adriana Terezinha Neves Novellino Alves, Alan Roger Santos Silva, Eliane Dos Santos Porto Barboza, Vittorio Moraschini
Invasive multiple cervical root resorptions after vital tooth bleaching is a rare condition. The aim of this article is to present a case of multiple external cervical root resorptions (ECRR) after a misguided home whitening treatment. A 34-year-old male patient presented with slight sensitivity and mobility in several teeth. Despite the manufacturer's recommendations, the patient used a 22% carbamide peroxide-based tooth bleaching gel at home for 4 consecutive days, at night, on the upper and lower arches...
June 16, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28621279/comparative-evaluation-of-stress-developed-on-rotary-retreatment-instruments-during-retrieval-of-gutta-percha
#3
Dhanasekaran Sihivahanan, T Vinay Kumar Reddy, Anchu Rachel Thomas, Natarajan Senthilnathan, Murali Sivakumar, Sushmita Shivanna
AIM: The aim of the study is to compare the maximum stress distribution on the rotary retreatment instruments within the root canal at cervical, middle, and the apical one-third during retreatment of gutta-percha. MATERIALS AND METHODS: A human mandibular premolar was scanned, and three-dimensional geometry of the root was reconstructed using finite element analysis (FEA) software package (ANSYS). The basic model was kept unchanged; tooth models were created using the same dimensions and divided into two groups as follows: Group I: ProTaper Universal retreatment system and group II: Mtwo rotary retreatment system...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28618294/focused-high-resolution-sonography-of-the-suprascapular-nerve-a-simple-surrogate-marker-for-neuralgic-amyotrophy
#4
Leonhard Gruber, Alexander Loizides, Wolfgang Löscher, Bernhard Glodny, Hannes Gruber
OBJECTIVES: To define the diagnostic value of high-resolution ultrasound (HRUS) of the suprascapular nerve (SSN) in the diagnosis of neuralgic amyotrophy (NA). METHODS: The cross-section areas (CSA) of the SSN at the C5 root (CSA1) and the omohyoid muscle in the midclavicular line (CSA2) were assessed bilaterally in 15 healthy volunteers and 14 patients with clinically and electrophysiologically verified NA. Receiver-operator-characteristics (ROC) curves were generated and cut-off values, sensitivity, specificity, positive (PPV) and negative predictive values (NPV), likelihood (LR) and odds ratios (OR) were calculated...
May 19, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28606671/external-cervical-resorption-a-new-oral-manifestation-of-systemic-sclerosis
#5
Sebastiana Arroyo-Bote, Cristina Bucchi, Ma Cristina Manzanares
Systemic sclerosis (SSc) is a complex, chronic, and progressive autoimmune disease. SSc causes bone resorption of mandible and distal phalanges of fingers through a known mechanism, and it has also been pointed out as a possible cause of apical root resorption of teeth, because tooth resorption is regulated by similar mechanisms to those controlling bone resorption. The objective of this article was to report the first case in the literature of external cervical resorption (ECR) as an oral manifestation of SSc...
June 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28604497/potential-mechanism-for-some-post-operative-c5-palsies-an-anatomical-study
#6
Fernando Alonso, Vlad Voin, Joe Iwanaga, David Hanscom, Jens R Chapman, Rod J Oskouian, Marios Loukas, R Shane Tubbs
STUDY DESIGN: Anatomical Study. OBJECTIVE: Determine if shoulder depression (e.g., taping the shoulders) might result in C5 nerve traction and subsequent injury. SUMMARY OF BACKGROUND DATA: Postoperative C5 nerve palsy is a recognized entity that is still often enigmatic. Inferior shoulder depression is usually employed to assist with surgical visualization during cervical spine procedures. METHODS: In the supine position, ten adult fresh frozen human cadavers underwent dissection of the spinal cord and its adjacent dorsal, ventral roots and spinal nerves from C4 to T1...
June 9, 2017: Spine
https://www.readbyqxmd.com/read/28600329/effect-of-electroacupuncture-on-thermal-pain-threshold-and-expression-of-calcitonin-gene-related-peptide-substance-p-and-%C3%AE-aminobutyric-acid-in-the-cervical-dorsal-root-ganglion-of-rats-with-incisional-neck-pain
#7
Li-Na Qiao, Jun-Ling Liu, Lian-Hong Tan, Hai-Long Yang, Xu Zhai, Yong-Sheng Yang
OBJECTIVE: Acupuncture therapy effectively reduces post-surgical pain, but its mechanism of action remains unclear. The aim of this study was to investigate whether expression of γ-aminobutyric acid (GABA) and the neuropeptides substance P (SP) and calcitonin gene-related peptide (CGRP) in the primary sensory neurons of cervical dorsal root ganglia (DRG) are involved in electroacupuncture (EA)-induced analgesia in a rat model of incisional neck pain. METHODS: The pain model was established by making a longitudinal midline neck incision in 60 rats...
June 9, 2017: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/28593384/anterior-cervical-osteotomy-operative-technique
#8
Lee A Tan, K Daniel Riew
PURPOSE: Correction of rigid cervical deformities often requires osteotomies to realign the spine. Cervical pedicle subtraction osteotomy can be technically challenging due to the presence of cervical nerve roots and usually can only be performed at C7 or T1 due to the presence of vertebral arteries. In contrast, anterior cervical osteotomy can be performed throughout the cervical spine and is a safe and effective method for correction of both sagittal and coronal cervical deformities...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28587505/chronic-cervical-radiculopathic-pain-is-associated-with-increased-excitability-and-hyperpolarization-activated-current-ih-in-large-diameter-dorsal-root-ganglion-neurons
#9
Da-Lu Liu, Xu Wang, Wen-Guang Chu, Na Lu, Wen-Juan Han, Yi-Kang Du, San-Jue Hu, Zhan-Tao Bai, Sheng-Xi Wu, Rou-Gang Xie, Ceng Luo
Cervical radiculopathic pain is a very common symptom that may occur with cervical spondylosis. Mechanical allodynia is often associated with cervical radiculopathic pain and is inadequately treated with current therapies. However, the precise mechanisms underlying cervical radiculopathic pain-associated mechanical allodynia have remained elusive. Compelling evidence from animal models suggests a role of large-diameter dorsal root ganglion neurons and plasticity of spinal circuitry attached with Aβ fibers in mediating neuropathic pain...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28583461/repair-of-v2-vertebral-artery-injuries-sustained-during-anterior-cervical-discectomy
#10
Evgenii Belykh, David S Xu, Kaan Yağmurlu, Ting Lei, Vadim A Byvaltsev, Curtis A Dickman, Mark C Preul, Peter Nakaji
BACKGROUND: The V2 segment of the vertebral artery (VA) typically runs through the transverse foramen of C2-C6. V2 injury may occur during anterior approaches to the cervical spine and can cause significant morbidity. We aimed to describe landmarks and microsurgical V2 repair techniques through the standard anterolateral cervical discectomy approach. METHODS: Five silicone-injected cadaveric heads (necks-C7) were dissected bilaterally. An anterolateral approach with C3-4, C4-5, and C5-6 discectomies and an ipsilateral VA injury were simulated...
June 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28580859/isolated-spinal-cord-compression-syndrome-revealing-delayed-extensive-superficial-siderosis-of-the-central-nervous-system-secondary-to-cervical-root-avulsion
#11
Amina Nasri, Imen Kacem, Youssef Sidhom, Mouna Ben Djebara, Amina Gargouri, Riadh Gouider
CONTEXT: Cervical root avulsion secondary to traumatic plexus injury is a rare etiology of superficial siderosis (SS) of the central nervous system (CNS). We describe the case of an isolated progressive compressive myelopathy revealing this complication and discuss the pathogenesis of such a presentation, its clinical and imaging peculiarities with a literature review. FINDINGS: We report on the case of a 48-year-old man with history of left brachial plexus injury at the age of 2 years...
June 5, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28574871/precise-target-site-of-ultrasound-guided-c5-cervical-root-block
#12
Donghwi Park
No abstract text is available yet for this article.
June 2, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28571251/evaluation-of-interdental-spaces-of-the-mandibular-posterior-area-for-orthodontic-mini-implants-with-cone-beam-computed-tomography
#13
Seyed Hossein Moslemzadeh, Aydin Sohrabi, Ali Rafighi, Yusef Kananizadeh, Amin Nourizadeh
INTRODUCTION: The use of mini-implants has increased in recent years because of their role in absolute anchorage, but the placement sites may affect the success or failure of the procedure, so it is very important to determine the appropriate and safe location for orthodontic mini-implants. On the other hand, the Cone Beam Computed Tomography (CBCT), which offers clear 3-Dimentional (3D) images, has been widely used in orthodontics and implant dentistry for surgical guidance of mini-implant placement...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28566164/cervical-spinal-cord-and-motor-unit-pathology-in-a-canine-model-of-sod1-associated-amyotrophic-lateral-sclerosis
#14
Martin L Katz, Cheryl A Jensen, Jeffrey T Student, Gayle C Johnson, Joan R Coates
Development of effective treatments for amyotrophic lateral sclerosis (ALS) would be facilitated by identification of early events in the pathological cascade of disease progression. Degenerative myelopathy (DM), a naturally occurring disease in dogs, is quite similar to forms of ALS associated with SOD1 mutations and is likely to be a good model for these forms of the human disease. The sequence of histopathological changes that occur in DM was characterized by analyzing tissue samples obtained from affected dogs euthanized at various stages of disease progression...
July 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28566141/bibrachial-plegia-due-to-lyme-radiculopoliomyelitis-myelitis
#15
Feras Akbik, Marcelo Matiello, Amanda Piquet, Tracey Cho, Adam Cohen, Nagagopal Venna
Nervous system involvement occurs in up to 15% of patients with Lyme disease, most commonly manifested as cranial neuropathy, lymphocytic meningitis, and or radiculoneuritis. We describe a patient with subacute radiculopoliomyelitis-myelitis matching the selective involvement of the anterior horns and roots of the cervical spinal cord seen on MRI and on electrodiagnostic studies. We demonstrate positive CSF Lyme antibodies and document a near-complete recovery with antibiotics. This case highlights the importance of recognizing an atypical presentation of Lyme disease in the setting of initial radiculitis and or myelitis, particularly given the potential for favorable outcomes with appropriate treatment...
July 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28552697/a-new-sling-technique-in-cervical-radiculopathy-due-to-vertebral-artery-loop-compression-case-report
#16
Chang Il Ju, Jeong Mok Kim, Jong Gyu Kim, Seok Won Kim, Seung Myung Lee
A 52-year-old woman had a 20-month history of progressive left arm's radiating pain and numbness on C7 dermatome. In physical examination, left head rotation aggravated the radiculopathic pain. To identify anatomical diagnosis of vertebral artery and nerve root, MRA was performed ( CT angiography was not possible due to her dye allergy history). It showed a left vertebral artery loop entering at the C6-7 intervertebral foramen. Surgical microvascular decompression was performed by anterior cervical approach with fixing the loop of artery using a sling technique...
May 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28539717/caspase-mediated-apoptotic-effects-of-ebenus-boissieri-barbey-extracts-on-human-cervical-cancer-cell-line-hela
#17
Ece Simsek, Nilufer Imir, Esra Arslan Aydemir, Ramazan Suleyman Gokturk, Erdem Yesilada, Kayahan Fiskin
BACKGROUND: Ebenus boissieri Barbey is an Antalya, Turkey-endemic plant belonging to Fabaceae family. The aerial parts and the roots of E. boissieri Barbey were used in this study. OBJECTIVE: In the present study, we have examined the apoptotic effects of hydroalcoholic extracts of E. boissieri Barbey in human cervical cancer cell line HeLa. MATERIALS AND METHODS: To determine the cytotoxic effect, cells were treated with various concentrations of extracts for 24, 48, and 72 h incubation periods...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28527851/intentional-replantation-of-an-avulsed-immature-permanent-incisor-a-case-report
#18
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Marcelo de Morais Vitoriano
This case report discusses the successful endodontic treatment of an open apex maxillary right permanent central incisor that had been avulsed and incorrectly replanted in a 7-year-old patient. The tooth was carefully re-extracted followed by cleaning of the alveolar socket and immediate replantation. However, pulp necrosis was diagnosed, and regenerative endodontic treatment was performed. The root canal system was disinfected by passive ultrasonic irrigation with 2.5% sodium hypochlorite. At the first visit, the tooth was repositioned and immobilized with an appropriate semirigid splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28523308/radiological-and-optical-coherence-tomography-aspects-in-external-root-resorption
#19
Sanda Mihaela Popescu, Veronica MercuŢ, Monica Scrieciu, Răzvan MercuŢ, Florin Dan Popescu, Adina Monica Chiriac, Monica Mihaela CrăiŢoiu, Eugen Osiac
Pathological external root resorption is a process by which the hard tooth substance is lost because of action of different local irritative or systemic factors. Six forms of external root resorption are described: surface external root resorption, inflammatory external root resorption, replacement external root resorption, invasive external cervical root resorption, ankylosis and transient apical breakdown. The objective of the study was to establish the prevalence of the pathological root resorption in a retrospective radiological study, to highlight radiological aspects of external root resorption and to describe optical coherence tomography (OCT) aspects in pathological root resorption...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522371/c1-lateral-mass-screw-insertion-from-the-caudal-dorsal-to-the-cranial-ventral-direction-as-an-alternate-method-for-c1-fixation-a-quantitative-anatomical-and-morphometric-evaluation
#20
Mehmet Senoglu, Ali Karadag, Burak Kinali, Baran Bozkurt, Cigdem Icke, Duygu Halacoglu Savran, Erik H Middlebrooks
OBJECT: C1 lateral mass screw has been widely used for fixation of the upper cervical spine. However, traditional fixation methods are not without complication. Morphometric measurement of an alternative approach is conducted. METHODS: Three-dimensional CT scans of the cervical spine obtained in 100 adults were evaluated, and key measurements were determined for screw entry points, trajectories, and screw lengths for placement of a C1 screw via this alternate approach...
May 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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