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McCahon R A RA Anaesthesia and Critical Care Research Group, Division of Clinical Neuroscience, University of Nottingham, Queen's Medical Centre, Nottingham, - - 2014
Concern that laryngoscopy and intubation might create or exacerbate a spinal cord injury has generated extensive research into cervical spinal movement during laryngoscopy. We performed a randomised trial on six cadavers, using three different laryngoscopes, before and after creating a type-2 odontoid peg fracture. Our primary outcome measure was the ...
Ladner Travis R TR Departments of 1 Neurological Surgery - - 2014
OBJECT The clinical significance of radiological measurements of the craniocervical junction in pediatric Chiari I malformation (CM-I) is yet to be fully established across the field. The authors examined their institutional experience with the pB-C2 line (drawn perpendicular to a line drawn between the basion and the posterior aspect of ...
Rusin Jerome A JA Department of Radiology, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, - - 2014
Excessive cervical flexion-extension accompanying mild to severe impact injuries can lead to C2 synchondrosal fractures in young children. To characterize and classify C2 synchondrosal fracture patterns. We retrospectively reviewed imaging and medical records of children who were treated for cervical spine fractures at our institution between 1995 and 2014. We ...
Wang Lei - - 2014
ObjectivePrevious studies have demonstrated that the posterior pedicle screw fixation is an effective and safe method to treat atlantoaxial fractures. However, no report focuses on only the complex atlantoaxial fractures with atlanto-dental interval (ADI) of ¿5 mm or C2-C3 angulation of ¿11°.MethodsThis study was to retrospectively evaluate the outcome of 15 ...
Ni Bin B 1From the Department of Orthopedics, Changzheng Hospital, The Second Military Medical University, Shanghai, People's Republic of - - 2014
Study Design. A prospective study.Objective. To evaluate the outcomes of posterior reduction and temporary fixation using the C1-C2 screw-rod system for odontoid fracture unsuitable for anterior screw fixation.Summary of Background Data. Anterior screw fixation has become the most widely used surgical procedure for the stabilization of odontoid fractures. However, if ...
Bransford Richard J - - 2014
Injuries to the upper cervical spine are potentially lethal; thus, full characterization of the injuries requires an accurate history and physical examination, and management requires an in-depth understanding of the radiographic projection of the craniocervical complex. Occipital condyle fractures may represent major ligament avulsions and may be highly unstable, requiring ...
Huang Ze-Yu ZY Department of Orthopaedics, West China Hospital, Chengdu, - - 2014
Lin Dasheng D Department of Orthopaedic Surgery, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou 363000, - - 2014
Retro-odontoid cysts associated with chronic atlantoaxial subluxation are extremely rare. This article describes a case of retro-odontoid cystic mass associated with chronic atlantoaxial subluxation and its management with posterior C1 and partial C2 laminectomy and C1-C2 pedicle screw fixation without resection of the retro-odontoid cyst. A 64-year-old woman experienced a ...
Goldschlager Tony T Departments of - - 2014
OBJECT The gold-standard surgical approach to the odontoid is via the transoral route. This approach necessitates opening of the oropharynx and is associated with risks of infection, and swallowing and breathing complications. The endoscopic endonasal approach has the potential to reduce these complications as the oral cavity is avoided. There ...
Waschke Albrecht A *Department of Neurosurgery, Jena University Hospital - Friedrich Schiller University Jena, Erlanger Allee 101, 07747 Jena, Germany †Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany ‡Institute of Anatomy and Cell Biology, Martin Luther University Halle, Große Steinstraße 52, 06108 Halle, - - 2014
Biomechanical human cadaveric study. The authors tested a cannulated and perforated lag screw and compared in situ polymethylmethacrylate augmentation against non-augmentation for fixation of osteoporotic type II odontoid fractures. Osteoporosis has been identified as a strong predictor for pseudarthrosis after screw fixation of type II odontoid fractures with cut-out through ...
Miyakoshi Naohisa - - 2014
Anomalies in the craniovertebral junction may be a rare cause of syncope. The mechanisms of syncope related to craniovertebral junction anomaly remain unknown.We present an extremely rare case with anomaly in the craniovertebral junction and syncope, and discuss the mechanism of the syncope. A 10-year-old Japanese boy with a congenital ...
Qiao Jun - - 2014
Osteoid osteoma is a primary benign bone lesion, which constitutes about 10% of all primary benign bone tumors and 3% of all primary bone tumors. The spine is involved in 10% of the cases, and the lumbar spine is the most commonly affected whereas the tumor is rarely seen in ...
Tan Jiangwei - - 2014
BackgroundIntraoperative assessment of neutral occipitocervical balance during a fusion procedure is challenging. We designed this study to introduce a more comprehensive method of evaluating the occipitocervical neutral position using lateral radiographs.MethodsOne hundred neutral lateral cervical spine radiographs interpreted as normal were studied. Cervical spine radiographs were performed using a standard ...
Osawa Shin-Ichiro S Department of Neurosurgery, Sendai Medical Center, National Hospital - - 2014
Basilar invagination is a developmental anomaly of the craniovertebral junction in which the odontoid abnormally prolapses into the foramen magnum. It is also associated with Chiari malformation, syringomyelia, and hydrocephalus. Patients require surgical treatment to prevent progression of neurological symptoms, but assessment of anterior or posterior decompression can be difficult ...
Van Abel Kathryn M KM Division of Otolaryngology Head and Neck Surgery, Mayo Clinic, Rochester, - - 2014
Object Swallowing dysfunction is common following transoral (TO) odontoidectomy. Preliminary experience with newer endoscopic transnasal (TN) approaches suggests that dysphagia may be reduced with this alternative. However, the reasons for this are unclear. The authors hypothesized that the TN approach results in less disruption of the pharyngeal plexus and anatomical ...
Ponce-Gómez Juan Antonio JA Departments of Neurological Surgery, National Institute of Neurology and Neurosurgery "Manuel Velasco Suarez," Mexico City, - - 2014
Object The goal of this study was to compare the indications, benefits, and complications between the endoscopic endonasal approach (EEA) and the microscopic transoral approach to perform an odontoidectomy. Transoral approaches have been standard for odontoidectomy procedures; however, the potential benefits of the EEA might be demonstrated to be a ...
Jang Hyun Jun HJ Department of Neurosurgery, Inha University School of Medicine and Hospital, Incheon, - - 2014
High-flow vertebral arteriovenous fistulas (VAVF) are rare complications of cervical spine surgery and characterized by iatrogenic direct-communication of the extracranial vertebral artery (VA) to the surrounding venous plexuses. The authors describe two patients with VAVF presenting with ischemic presentation after C1 pedicle screw insertion for a treatment of C2 fracture ...
Vasudevan K K Department of Neurosurgery, Emory University School of Medicine, United - - 2014
Type II odontoid fractures are the most common spinal fracture in the elderly population and may be managed with halo immobilization, posterior fusion, and anterior odontoid screw fixation. Anterior odontoid screw fixation has several advantages over posterior fusion, including: reduced surgical time, decreased post-operative pain, preserved range of motion, earlier ...
Ivancic Paul C PC From: Biomechanics Research Laboratory, Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, Connecticut, - - 2014
Study Design. In vitro biomechanical study.Objectives. To investigate mechanisms of odontoid fracture.Summary of Background Data. Odontoid fractures in younger adults occur most often due to high-energy trauma including motor vehicle crashes and in older adults due to fall from standing height.Methods. Horizontally-aligned head impacts into a padded barrier were simulated ...
Kerolus Mena M Department of Neurosurgery, Rush University Medical Center, Chicago, - - 2014
and Importance: Acquired atlanto-axial instability (AAI) of inflammatory origin (Grisel syndrome) is a very rare condition. It usually occurs in children with benign upper airway problems and responds well to immobilization, rarely requiring C1-2 arthrodesis. Our recent experience with 2 adult cases suggests this may not be true in an ...
Monet Antoine A From the *Centre d'Imagerie Fonctionnelle, Bordeaux; and †CHU Pellegrin, Bordeaux, - - 2014
An 87-year-old woman with corticosteroid-resistant polymyalgia rheumatica underwent F-FDG PET/CT for suspected giant cell arteritis or neoplastic disease. FDG uptake in the immediate vicinity of the odontoid process, with a crownlike calcification, was identified on the CT scan on the posterior side of the dens, thus confirming the diagnosis of ...
Patel Amit A Department of Neurosurgery, The Walton Centre NHS Foundation Trust , Liverpool , - - 2014
Background. The optimal management of odontoid fractures in the elderly population is unclear and management of this group of patients is complicated by multiple co-morbidities. This study aimed to determine the outcomes after conservative management strategies were applied in this patient group. Methods. We carried out retrospective and prospective analyses ...
Gu Min - - 2014
To establish cephalometric norms for the upper airway of 12-year-old Chinese children, and to assess these norms with regard to gender, age, ethnicity and other craniofacial structures. Lateral cephalograms were obtained from a random sample of 425 12-year-old Chinese children (224 boys and 201 girls) to establish the Chinese norms, ...
Ohnishi Yu-Ichiro YI Department of Neurosurgery, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan, - - 2014
Retro-odontoid synovial cysts are rare and attributable to degenerative changes in the atlantoaxial joints. An anterolateral approach facilitates access to lesions located anterior to the craniocervical junction without harming the atlantoaxial joints, and can also treat small lesions in the ventral mid-portion of the craniocervical junction without compression of spinal ...
Findikoglu Gulin G Deparment of Physical Medicine and Rehabilitation, University of Pamukkale, Denizli, - - 2014
We aim to draw attention to occult, atraumatic fractures of the odontoid process in patients with rheumatoid arthritis (RA) and to underline difficulties encountered during clinical and radiological diagnosis. A forty-seven years old man with RA for 4 years had occipital pain for 1 year without any history of trauma. Later, he ...
Cox Simon R SR Brain Research Imaging Centre, Neuroimaging Sciences, University of Edinburgh, UK ; Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, UK ; Department of Psychology, University of Edinburgh, - - 2014
Both general fluid intelligence (g f) and performance on some 'frontal tests' of cognition decline with age. Both types of ability are at least partially dependent on the integrity of the frontal lobes, which also deteriorate with age. Overlap between these two methods of assessing complex cognition in older age ...
Tomatsu Shunji - - 2014
Morquio A syndrome is an autosomal recessive disorder, one of 50 lysosomal storage diseases (LSDs), and is caused by the deficiency of N-acetylgalactosamine-6-sulfate sulfatase (GALNS). Deficiency of this enzyme causes specific glycosaminoglycan (GAG) accumulation: keratan sulfate (KS) and chondroitin-6-sulfate (C6S). The majority of KS is produced in the cartilage, therefore, ...
Wraith J E - - 2014
Mucopolysaccharidosis type I (MPS I) is caused by a deficiency of the lysosomal hydrolase a-L-Iduronidase leading to accumulation of the GAGs, dermatan sulfate, and heparan sulphate, The disease spectrum includes a disorder with severe involvement and CNS disease Hurler disease (HPS I H) a chronic disease without CNS disease Scheie ...
Joaquim Andrei F AF Departamento de Neurologia, Universidade Estadual de Campinas, Campinas, SP, - - 2014
A retrospective case-control study based on craniometrical evaluation was performed to evaluate the incidence of basilar invagination (BI). Patients with symptomatic tonsillar herniation treated surgically had craniometrical parameters evaluated based on CT scan reconstructions before surgery. BI was diagnosed when the tip of the odontoid trespassed the Chamberlain's line in ...
Koyfman Anna A Department of Radiology, Meir Medical Center; Kfar Saba, Israel - - - 2014
Crystal deposition in the cervical spine around the odontoid process may lead to acute neck pain. This rare condition is called crowned dens syndrome and should be considered in the differential diagnosis of a possible etiology for fever, headache and cervical pain of unknown origin. The syndrome is often overlooked, ...
Wang Lei - - 2014
BackgroundAt present, traumatic atlantoaxial dislocation or C2-3 instability complicating odontoid fractures remains rarely reported. The aim of this study was to further investigate the surgical treatment strategies and curative effects for odontoid fractures combined with instability of adjacent segments.MethodsThis is a retrospective study of 12 patients (5 females and 7 ...
Bourghli Anouar A Orthopedic Spinal Surgery Unit, Bordeaux Pellegrin Hospital, Place Amélie Raba-Léon, 33076, Bordeaux Cedex, France, - - 2014
Management of C1-C2 instability is very challenging, especially when tumoral lesions are involved. We present the case of a 65-year-old male, with a recently discovered small cell lung carcinoma, presenting progressive tetraparesis due to a secondary lesion involving the body of C2 with complete collapse of its anterior part and ...
Castro-Castro Julián J Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España. Electronic address: - - 2014
The purpose of this study was to asses the value of intraoperative cone-beam CT (O-arm) and stereotactic navigation for the insertion of anterior odontoid screws. this was a retrospective review of patients receiving surgical treatment for traumatic odontoid fractures during a period of 18 months. Procedures were guided with O-arm ...
Kelly Michael P MP 1Washington University School of Medicine, Department of Orthopedic Surgery, Saint Louis, MO 2University of Tokyo, Department of Orthopaedic Surgery, Tokyo, Japan 3Department of Orthopaedic Surgery, Seoul National University, Seoul, Republic of Korea 4Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 5University of South Alabama, College of Medicine, Mobile, - - 2014
Study Design. Cadaveric StudyObjective. To define congenital hypoplasia of the atlas.Summary of Background Data. Little has been written about hypoplasia of the atlas and it is usually described in the setting of other skeletal dysplasias or syndromes.Methods. 543 Cervical spine specimens were randomly selected from the Hamann Todd Collection. Sagittal ...
Ivancic Paul C PC Biomechanics Research Laboratory, Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, 333 Cedar St., P.O. Box 208071, New Haven, CT, 06520-8071, USA, - - 2014
"Plough" fracture, in which the odontoid ploughs through and causes a high-energy shear fracture of the anterior arch of the atlas, has been documented in clinical case studies and classified as clinically unstable. Our objectives were to develop a biomechanical model to simulate atlantal plough fracture and investigate injury mechanisms. ...
Woods Barrett I BI University of Pittsburgh Medical Center, Dept of Orthopaedic Surgery, Pittsburgh, - - 2014
Retrospective matched cohort study. To compare mortality in elderly patients with odontoid fractures following operative and non-operative treatment. Additionally, to evaluate potential factors that may increase the risk of mortality in the geriatric population following odontoid fracture. Odontoid fractures represent the most common cervical spine fracture in patients over 70. ...
Yoshimura Ayumi - - 2014
Os odontoideum is a separate ossicle from the odontoid process from the body of the axis by a variable transverse gap. A boy with cerebral palsy probably due to prematurity and kernicterus, was treated with botulinum toxin for continuous dystonic movements at the age of 3.5 years. Although botulinum toxin ...
Goel Atul A Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, Maharashtra, - - 2014
Bhat Ravi R Department of Anaesthesiology, SDM Medical College, Dharwad, Karnataka, - - 2014
The ideal airway management modality in pediatric patients with syndromes like Klippel-Feil syndrome is a great challenge and is technically difficult for an anesthesiologist. Half of the patients present with the classic triad of short neck, low hairline, and fusion of cervical vertebra. Numerous associated anomalies like scoliosis or kyphosis, ...
Klekamp Jörg J Department of Neurosurgery, Christliches Krankenhaus, Danziger Str. 2, 49610, Quakenbrück, Germany, - - 2014
Basilar invagination is a rare craniocervical malformation which may lead to neurological deficits related to compression of brainstem and upper cervical cord as well as instability of the craniocervical junction. This study presents results of a treatment algorithm developed over a 20-year period focussing on anatomical findings, short-term and long-term ...
Tanriverdi Osman O From the *Bakirkoy Research and Training Hospital for Neurology, Neurosurgery, and Psychiatry, 2nd Neurosurgery Clinic, Istanbul, Turkey; †Istanbul Headquarters of Forensic Medicine Institute, Ministry of Justice, Istanbul, Turkey; and ‡Istanbul University, Cerrahpa┼ča Medical Faculty, Department of Neurosurgery, Istanbul, - - 2014
The resection of the odontoid process via an extended endoscopic endonasal approach has been recently proposed as an alternative to the microscopic transoral method. We aimed to delineate a minimally invasive endoscopic transnasal odontoidectomy and to describe the endoscopic anatomy of the anterior craniovertebral junction (CVJ). The anterior CVJ of ...
Li Zhonghua Z Department of Neurosurgery, the First Affiliated Hospital of China Medical University, - - 2014
Karason Sigurbergur - - 2014
Concern has been raised that cervical collars may increase intracranial pressure in traumatic brain injury. The purpose of this study was to compare four types of cervical collars regarding efficacy of immobilizing the neck, effect on jugular venous pressure (JVP), as a surrogate for possible effect on intracranial pressure, and ...
Moore Hannah E HE Department of Medical Imaging, Primary Children's Medical Center, 100 N. Mario Capecchi Drive, Salt Lake City, UT, 84113, - - 2014
Complex Chiari malformation is a subgroup of Chiari 1 malformation with distinct imaging features. Children with complex Chiari malformation are reported to have a more severe clinical phenotype and sometimes require more extensive surgical treatment than those with uncomplicated Chiari 1 malformation. We describe reported MR imaging features of complex ...
Chiaro Joseph A JA Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 424 Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104, USA; Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 424 Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104, - - 2014
Mucopolysaccharidosis I (MPS I) is a lysosomal storage disease characterized by deficient α-L-iduronidase activity, leading to the accumulation of poorly degraded glycosaminoglycans (GAGs). Children with MPS I exhibit high incidence of spine disease, including accelerated disc degeneration and vertebral dysplasia, which in turn lead to spinal cord compression and kypho-scoliosis. ...
Nazarinia Mohammadali M Shiraz Geriatric Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. - - 2014
This cross-sectional study is conducted to determine the prevalence of asymptomatic cervical spine subluxation in rheumatoid arthritis patients by plain radiographs and its relation to demographic and clinical characteristics, disease activity measures and medications. 100 rheumatoid arthritis patients (18 male and 82 female) were selected randomly, according to the American ...
Posey Karen LaShea KL Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX 77030, USA. Electronic address: - - 2014
Pseudoachondroplasia (PSACH) is a skeletal dysplasia characterized by disproportionate short stature, small hands and feet, abnormal joints and early onset osteoarthritis. PSACH is caused by mutations in thrombospondin-5 (TSP-5, also known as cartilage oligomeric matrix protein or COMP), a pentameric extracellular matrix protein primarily expressed in chondrocytes and musculoskeletal tissues. ...
Viana Michele M Headache Science Center, C. Mondino National Neurological Institute, Pavia, - - 2014
Crowned dens syndrome (CDS) is a clinical-radiological entity characterized by acute attacks of neck pain with fever, rigidity, general signs of inflammation, and calcification of the periodontoid articular structures. Case report with 42 months follow-up. An 81-year-old man, who had never suffered from headache before July 2010, developed strictly left-sided ...
Xia Hong H Department of Orthopedics, Guangzhou General Hospital of Guangzhou Military Command (Liuhuaqiao Hospital), No.111 Liuhua Avenue, Guangzhou, People's Republic of China, - - 2014
Although direct transoral decompression and one-stage posterior instrumentation can obtain satisfactory cord decompression for the treatment of basilar invagination with atlantoaxial dislocation, surgical injuries run high as combinative anterior-posterior approaches were necessary. Furthermore, the complications will rise notably when involvement of dens and/or clivus in the decompression necessitates relatively complicated ...
Takahashi Teruyuki T Department of Neurology, Nagaoka-Nishi Hospital, Nagaoka, Tokyo, - - 2014
Pain is regarded as one of the most common nonmotor symptoms in Parkinson's disease (PD). In particular, musculoskeletal pain has been reported as the most common type of PD-associated pain. Crowned dens syndrome (CDS), related to microcrystalline deposition in the periodontoid process, is the main cause of acute or chronic ...
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