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https://www.readbyqxmd.com/read/28229224/factors-affecting-survival-of-patients-in-the-acute-phase-of-upper-cervical-spine-injuries
#1
Tomonori Morita, Tsuneo Takebayashi, Hideto Irifune, Hirofumi Ohnishi, Suguru Hirayama, Toshihiko Yamashita
INTRODUCTION: In recent years, on the one hand, the mortality rates of upper cervical spine injuries, such as odontoid fractures, were suggested to be not so high, but on the other hand reported to be significantly high. Furthermore, it has not been well documented the relationship between survival rates and various clinical features in those patients during the acute phase of injury because of few reports. This study aimed to evaluate survival rates and acute-phase clinical features of upper cervical spine injuries...
February 22, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28227179/influence-of-electrode-configuration-on-the-electric-field-distribution-during-transcutaneous-spinal-direct-current-stimulation-of-the-cervical-spine
#2
Sofia R Fernandes, Ricardo Salvador, Cornelia Wenger, Mamede A de Carvalho, Pedro C Miranda, Sofia R Fernandes, Ricardo Salvador, Cornelia Wenger, Mamede A de Carvalho, Pedro C Miranda, Sofia R Fernandes, Pedro C Miranda, Cornelia Wenger, Ricardo Salvador, Mamede A de Carvalho
Transcutaneous spinal direct current stimulation (tsDCS) is a recent technique with promising neuromodulatory effects on spinal neuronal circuitry. The main objective of the present study was to perform a finite element analysis of the electric field distribution in tsDCS in the cervical spine region, with varying electrode configurations and geometry. A computational model of a human trunk was generated with nine tissue meshes. Three electrode configurations were tested: A) rectangular saline-soaked sponge target and return electrodes placed over C3 and T3 spinous processes, respectively; B1) circular saline-soaked sponge target and return electrodes placed over C7 spinous process and right deltoid muscle, respectively; B2) same configuration as B1, considering circular shaped electrodes with sponge and rubber layers and a small circular connector on the top surface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227129/modeling-of-pharyngoesophageal-segment-during-tracheoesophageal-phonation-in-total-laryngectomy-patients-with-preliminary-validation
#3
Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Siwei Bai, Michal Szczesniak, Socrates Dokos, Ian Cook, Julia Maclean, Teng Zhang
For patients with large or recurrent laryngeal cancer, total laryngectomy surgery is usually performed. In the absence of a larynx, tracheoesophageal (TE) voice is the gold standard for alaryngeal phonation. The mechanisms underlying TE voice are unknown, but pharyngoesophageal (PE) segment vibration has been shown to play a key role. The aim of this study was to systematically explore the mechanics of PE segment vibration during TE phonation. A 2D axisymmetric finite-element model with two domains representing the air and PE wall was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226803/closed-loop-afferent-electrical-stimulation-for-recovery-of-hand-function-in-individuals-with-motor-incomplete-spinal-injury-early-clinical-results
#4
Christopher J Schildt, Sarah H Thomas, Elizabeth S Powell, Lumy Sawaki, Sridhar Sunderam, Christopher J Schildt, Sarah H Thomas, Elizabeth S Powell, Lumy Sawaki, Sridhar Sunderam, Lumy Sawaki, Christopher J Schildt, Elizabeth S Powell, Sarah H Thomas, Sridhar Sunderam
Afferent electrical stimulation is known to augment the effect of rehabilitative therapy through use-dependent cortical plasticity. Experiments pairing transcranial magnetic stimulation (TMS) with peripheral nerve stimulation (PNS) have shown a timing-dependent effect on motor evoked potential (MEP) amplitude suggesting that PNS applied in closed-loop (CL) mode could augment this effect through positive reinforcement. We present early results from a clinical trial in which an EEG brain-machine interface (BMI) was used to apply PNS to two subjects in response to motor intent detected from sensorimotor cortex in a cue-driven hand grip task...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226080/reliability-and-safety-of-a-new-upper-cervical-spine-injury-treatment-algorithm
#5
Andrei Fernandes Joaquim, Roger Schmidt Brock, Vinicius Monteiro de Paula Guirado, Luis Henrique Sandon, Otávio Turolo da Silva, Mário Augusto Taricco, Manoel Jacobsen Teixeira, Eberval Gadelha Figueiredo
Methods: Thirty cases, previously treated according to the new algorithm, were presented to four spine surgeons who were questioned about their personal suggestion for treatment, and the treatment suggested according to the application of the algorithm. After four weeks, the same questions were asked again to evaluate reliability (intra- and inter-observer) using the Kappa index. Results: The reliability of the treatment suggested by applying the algorithm was superior to the reliability of the surgeons' personal suggestion for treatment...
February 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28225813/the-effects-of-cervical-transcutaneous-spinal-direct-current-stimulation-on-motor-pathways-supplying-the-upper-limb-in-humans
#6
Siobhan C Dongés, Jessica M D'Amico, Jane E Butler, Janet L Taylor
Non-invasive, weak direct current stimulation can induce changes in excitability of underlying neural tissue. Many studies have used transcranial direct current stimulation to induce changes in the brain, however more recently a number of studies have used transcutaneous spinal direct current stimulation to induce changes in the spinal cord. This study further characterises the effects following cervical transcutaneous spinal direct current stimulation on motor pathways supplying the upper limb. In Study 1, on two separate days, participants (n = 12, 5 F) received 20 minutes of either real or sham direct current stimulation at 3 mA through electrodes placed in an anterior-posterior configuration over the neck (anode anterior)...
2017: PloS One
https://www.readbyqxmd.com/read/28225467/comparison-of-anesthetic-management-and-outcomes-in-patients-having-either-transnasal-or-transoral-endoscopic-odontoid-process-surgery
#7
Matthew A Sexton, Arnoley S Abcejo, Jeffrey J Pasternak
BACKGROUND: Endoscopic neurosurgical procedures involving the upper cervical vertebrae are challenging due to a narrow operating field and close proximity to vital anatomical structures. Historically, transoropharyngeal (transoral) endoscopy has been the preferred approach. More recently, however, an endoscopic transnasal approach was developed as an alternative method in hopes to reduce postoperative dysphagia, a common complication following transoral neurosurgery. METHODS: Twenty-two endoscopic neurosurgical cases involving the odontoid or C1 vertebra were reviewed between January 1, 2005 and December 31, 2015 (17 and 5 through transoral and transnasal approaches, respectively)...
February 20, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28224661/recurrent-obstructive-fibrinous-tracheal-pseudomembranes-in-a-young-english-bulldog
#8
E Robin, L V Guieu, K Le Boedec
Endotracheal intubation is a common procedure, rarely associated with life-threatening complications (e.g., tracheal rupture, necrosis, foreign body). A 1.5-year-old English Bulldog was presented for respiratory distress, with increased respiratory efforts and stridor, 2 days after endotracheal intubation. Cervical and thoracic radiographs disclosed a severe narrowing of the tracheal lumen associated with an intraluminal soft-tissue structure at the thoracic inlet. Tracheoscopy confirmed the presence of an obstructive fibrinous tracheal pseudomembrane (OFTP) creating a 1-way valve obstruction...
February 22, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28223546/skip-lateral-lymph-node-metastasis-leaping-over-the-central-neck-compartment-in-papillary-thyroid-carcinoma
#9
Jianyong Lei, Jinjing Zhong, Ke Jiang, Zhihui Li, Rixiang Gong, Jingqiang Zhu
OBJECTIVE: This study was performed to investigate the frequency and pattern as well as the predictive factors of skip metastasis (lateral cervical lymph node metastasis without central lymph node metastasis) in papillary thyroid carcinoma (PTC). METHODS: 450 PTC patients who received total thyroidectomy with central neck dissection(CND) combined with modified radical lateral neck dissection(LND) were divided into two groups: with or without skip metastases. The clinicopathological characteristics were statistically compared and analyzed, and univariate and multivariate analyses were performed to detect the risk factors of skip metastasis...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28220062/anatomical-and-molecular-properties-of-long-descending-propriospinal-neurons-in-mice
#10
Jamie R Flynn, Victoria L Conn, Kieran A Boyle, David I Hughes, Masahiko Watanabe, Tomoko Velasquez, Martyn D Goulding, Robert J Callister, Brett A Graham
Long descending propriospinal neurons (LDPNs) are interneurons that form direct connections between cervical and lumbar spinal circuits. LDPNs are involved in interlimb coordination and are important mediators of functional recovery after spinal cord injury (SCI). Much of what we know about LDPNs comes from a range of species, however, the increased use of transgenic mouse lines to better define neuronal populations calls for a more complete characterisation of LDPNs in mice. In this study, we examined the cell body location, inhibitory neurotransmitter phenotype, developmental provenance, morphology and synaptic inputs of mouse LDPNs throughout the cervical and upper thoracic spinal cord...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28217386/true-oblique-axis-fracture-associated-with-congenital-anomalies-of-the-upper-cervical-spine-case-report-of-an-unusual-fracture-pattern
#11
Luis A Robles
BACKGROUND: Acute traumatic axis fractures are common cervical spine injuries often caused by road accidents or falls. They are usually classified into three different types, namely, odontoid fractures, Hangman's fractures, and miscellaneous fractures. Congenital malformations of the craniovertebral junction (CVJ), although typically asymptomatic, may result in neural compression or instability, especially following trauma. Here, the authors present an unusual oblique axis fracture occurring in conjunction with several malformations of the upper cervical spine...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28216817/turned-in-fasciocutaneous-island-flap-from-face-and-neck-based-on-subdermal-microcirculation-for-reconstruction-of-the-oral-cavity-following-cancer-surgery
#12
Kalpesh Jayantkumar Gajiwala
BACKGROUND: The skin and soft tissues of the face and neck have a rich plexus of dermal-subdermal vessels, which creates the possibility of raising a fasciocutaneous flap based on this vascular supply. A turned in fasciocutaneous island flap (TIFCIF) from an adjacent area of the defect can provide a simple substitute to many complex reconstructive procedures. MATERIALS AND METHODS: Fifteen patients underwent wide excision for oral cancer and upper neck dissection, maintaining bone framework, between August 2010 and June 2014...
September 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28216748/comparison-of-occipitocervical-and-atlantoaxial-fusion-in-treatment-of-unstable-jefferson-fractures
#13
Yong Hu, Zhen-Shan Yuan, Christopher K Kepler, Wei-Xin Dong, Xiao-Yang Sun, Jiao Zhang
BACKGROUND: Controversy exists regarding the management of unstable Jefferson fractures, with some surgeons performing reduction and immobilization of the patient in a halo vest and others performing open reduction and internal fixation. This study compares the clinical and radiological outcome parameters between posterior atlantoaxial fusion (AAF) and occipitocervical fusion (OCF) constructs in the treatment of the unstable atlas fracture. MATERIALS AND METHODS: 68 consecutive patients with unstable Jefferson fractures treated by AAF or OCF between October 2004 and March 2011 were included in this retrospective evaluation from institutional databases...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28215392/the-clinical-outcomes-of-atlanto-axial-arthrodesis-in-patients-with-rheumatoid-arthritis-assessment-according-to-the-japanese-orthopaedic-association-cervical-myelopathy-evaluation-questionnaire-joacmeq
#14
Haku Iizuka, Yoichi Iizuka, Tokue Mieda, Daisuke Tsunoda, Ryoichi Kobayashi, Yasunori Sorimachi
PURPOSE: The purpose of this study was to evaluate the clinical outcomes of atlanto-axial arthrodesis in rheumatoid arthritis (RA) patients with cervical myelopathy using the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire (JOACMEQ). METHODS: Twenty patients who underwent surgery to treat atlanto-axial subluxation (AAS) were reviewed. RESULTS: The rates of success rates for each domain were as follows: cervical spine function, 11 of 18 patients (61...
February 15, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28215058/effect-of-cervical-versus-thoracic-spinal-manipulation-on-peripheral-neural-features-and-grip-strength-in-subjects-with-chronic-mechanical-neck-pain-a-randomized-controlled-trial
#15
Francisco Bautista-Aguirre, Ángel Oliva-Pascual-Vaca, Alberto M Heredia-Rizo, Juan J Boscá-Gandía, François Ricard, Cleofás Rodriguez-Blanco
BACKGROUND: Cervical and thoracic spinal manipulative therapy has shown positive impact for relief of pain and improve function in non-specific mechanical neck pain. Several attempts have been made to compare their effectiveness although previous studies lacked a control group, assessed acute neck pain or combined thrust and nonthrust techniques. AIM: To compare the immediate effects of cervical and thoracic spinal thrust manipulations on mechanosensitivity of upper limb nerve trunks and grip strength in patients with chronic non-specific mechanical neck pain...
February 17, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28213934/transverse-process-anatomy-as-a-guide-to-vertebral-artery-exposure-during-anterior-cervical-spine-approach-a-cadaveric-study
#16
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/28212672/cytokeratin7-and-cytokeratin19-expression-in-high-grade-cervical-intraepithelial-neoplasm-and-squamous-cell-carcinoma-and-their-possible-association-in-cervical-carcinogenesis
#17
Hojung Lee, Hyekyung Lee, Yong Kyun Cho
BACKGROUND: High risk human papillomavirus (HR HPV) infects cells at the squamocolumnar junction (SCJ) of the cervix, causing cancer. Cytokeratin (CK)7 is an SCJ marker, and stains cervical neoplasia. CK19 is a binding partner of CK7 and expressed in cervical cancer. Despite this possible association between CK7/CK19 and cervical cancer, not much is known about the mechanism of CK7/CK19 involvement in HR HPV-mediated cervical carcinogenesis. METHODS: We analyzed the expression pattern of CK7, CK19, and p16 by using immunohistochemistry and HPV infection by in situ hybridization in 25 cases of high grade cervical intraepithelial neoplasia (CIN3) and in 30 cases of squamous cell carcinoma (SCC)...
February 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28209307/indications-and-complications-of-crown-halo-vest-placement-a-review
#18
REVIEW
Dennis Lee, Adeola L Adeoye, Nader S Dahdaleh
Crown halo vest placement remains an option for the treatment of a variety of upper and subaxial cervical spinal fractures. While the device remains a useful non-operative option for the treatment of these injuries, it has been associated with a variety of complications. This manuscript represents an up to date narrative review of the indications, complications, and complication avoidance for the placement of crown halo vests.
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28203184/spinal-cord-infarction-after-cervical-transforaminal-epidural-steroid-injection-case-report-and-literature-review
#19
Jangsup Moon, Hyung-Min Kwon
INTRODUCTION: Transforaminal epidural steroid injection (TFESI) is a widely used nonsurgical procedure in the treatment of patients with radiculopathy. It is efficacious in relieving pain, but a number of complications are being reported. Recently, increasing frequency of major complications, such as spinal cord infarction and cerebral infarction, has been reported with the use of a particulate steroid within fluoroscopic-guided procedures. METHODS: We report a 49-year-old man with a history of chronic cervical radiculopathy, who experienced a devastating complication after TFESI...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28197652/-intravascular-papillary-endothelial-hyperplasia-ipeh-masson-s-pseudoangiosarcoma-on-the-forefoot
#20
P Rottler, A Wilke, T M Frangen, C Kuhnen, B Schley
Intravascular papillary endothelial hyperplasia (IPEH)/Masson's pseudoangiosarcoma is a rare (orphan) disease of the forefoot that has not yet been described in Europe. The pathoanatomic examination of a young patient with a vague interdigital space-consuming lesion revealed a intravascular papillary endothelial hyperplasia/Masson's pseudoangiosarcoma. The intravascular papillary endothelial hyperplasia can be mainly detected in the upper limbs as well as cervically. Heretofore, the intravascular papillary endothelial hyperplasia has only been described in Japan and the USA...
February 14, 2017: Der Orthopäde
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