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https://www.readbyqxmd.com/read/27906741/halo-vest-immobilization-in-elderly-odontoid-fracture-patients-evolution-in-treatment-modality-and-in-hospital-outcomes
#1
J Mason DePasse, Mark A Palumbo, Abdul-Kareem Ahmed, Charles A Adams, Alan H Daniels
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To evaluate the utilization and effectiveness of halo-vest (HV) immobilization for type II odontoid fractures from 2004 to 2014. SUMMARY OF BACKGROUND DATA: Controversy persists regarding the optimal treatment method for odontoid fractures in the elderly. Management options include immobilization in a cervical orthosis, HV immobilization, and operative intervention. Over the past decade, high mortality and morbidity rates have been reported following HV immobilization in this patient population...
November 30, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27902956/usefulness-of-cervical-computed-tomography-and-magnetic-resonance-imaging-for-rapid-diagnosis-of-crowned-dens-syndrome-a-case-report-and-review-of-the-literature
#2
Akihiro Inoue, Kanehisa Kohno, Satoko Ninomiya, Hitomi Tomita, Shinji Iwata, Shiro Ohue, Kenji Kamogawa, Kensho Okamoto, Shinya Fukumoto, Haruhisa Ichikawa, Shinji Onoue, Saya Ozaki, Bungo Okuda
INTRODUCTION: Crowned dens syndrome is a rare disease entity which radiologically shows calcification of the cruciform ligament around the odontoid process. We report a patient with crowned dens syndrome who improved dramatically in 5days following treatment with oral nonsteroidal anti-inflammatory medication. PRESENTATION OF CASE: A 61-year-old man was admitted to our hospital with a severe occipital headache and sudden onset of neck stiffness. Neurological examination on admission revealed a high fever and cervical rigidity...
November 23, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27901084/development-of-mouthparts-in-the-cicada-meimuna-mongolica-distant-successive-morphological-patterning-and-sensilla-differentiation-from-nymph-to-adult
#3
Yanan Hao, Christopher H Dietrich, Wu Dai
Development of the mouthparts in the cicada Meimuna mongolica (Distant) is investigated here for the first time using scanning electron microscopy in order to document changes occurring in different nymphal instars and from nymph to adult, during which a shift from subterranean root-feeding to feeding on aboveground parts of the host plant occurs. The structure and component of mouthparts is similar to those found in other hemipteran insects. Fourteen types of sensilla and five types of cuticular processes were found on the mouthparts of nymphs and adults...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898508/the-need-for-a-comprehensive-classification-for-non-apical-non-basal-odontoid-fracture-orientation-guided-by-synthesis-biomechanics
#4
Javier Melchor Duart-Clemente, Luis Álvarez-Galovich, Félix Tomé Bermejo, Ángel Piñera Parrilla, Charles Mengis Palleck, Julio Albisua Sánchez, Julio Vicente Duart Clemente
No abstract text is available yet for this article.
November 24, 2016: Spine
https://www.readbyqxmd.com/read/27891029/craniovertebral-junction-360%C3%A2-a-combined-microscopic-and-endoscopic-anatomical-study
#5
Sukhdeep Singh Jhawar, Maximiliano Nunez, Paolo Pacca, Daniel Seclen Voscoboinik, Huy Truong
OBJECTIVES: Craniovertebral junction (CVJ) can be approached from various corridors depending on the location and extent of disease. A three-dimensional understanding of anatomy of CVJ is paramount for safe surgery in this region. Aim of this cadaveric study is to elucidate combined microscopic and endoscopic anatomy of critical neurovascular structures in this area in relation to bony and muscular landmarks. MATERIALS AND METHODS: Eight fresh-frozen cadaveric heads injected with color silicon were used for this study...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27889860/rich-but-poor-life-in-the-roman-period-with-extreme-rheumatoid-arthritis
#6
REVIEW
Željana Bašić, Ivan Jerković, Ivana Kružić, Šimun Anđelinović
In a Sidonian sarcophagus, from the Late Antique/early Christian period, skeletal remains of two persons were found. One of them, male, 30-50 years old, was found almost completely ankylosed, with highly osteoporotic bones and prominent erosion of joint surfaces. We diagnosed rheumatoid arthritis based on the eroded odontoid process, mandibular condyles, distal humerus, proximal and distal ulna, as well ankylosed hand and foot bones. Despite the fact that ankyloses of vertebrae and sacroiliac joint could point towards ankylosing spondylitis, the lack of typical vertebral ankyloses and new bone formation led to exclusion...
November 26, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27888089/quantitative-measurements-of-the-skull-base-and-craniovertebral-junction-in-congenital-occipitalization-of-the-atlas-a-ct-based-anatomical-study
#7
Rui Zong, Yiheng Yin, Guangyu Qiao, Yazhou Jin, Xinguang Yu
BACKGROUND: To study the craniovertebral junction (CVJ) and determine the anatomical characteristics of occipitalization of the atlas (OC) by computed tomography imaging. METHODS: We retrospectively reviewed 80 cases of patients with OC who underwent cervical CT scanning between March 2012 and March 2014. Forty healthy subjects were recruited as a control cohort. Fusion pattern and associated osseous anomalies were recorded. Fifteen linear quantitative parameters were measured to study the outlet of the foramen magnum, angular dimension of the skull base, posterior cranial fossa, and height of the odontoid process...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27886873/treatment-of-odontoid-fractures-in-the-aging-population
#8
REVIEW
Jian Guan, Erica F Bisson
Odontoid fractures are the most common cervical fracture type among the elderly population. Several treatment options exist for these patients, ranging from immobilization with a semirigid orthosis to surgical arthrodesis. This report reviews the key points in the management of odontoid fractures in the aged patient, including diagnosis, the various forms of conservative therapies, and the options for surgical intervention.
January 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/27879510/clinical-and-radiographic-outcomes-of-c1-laminectomy-without-fusion-in-patients-with-cervical-myelopathy-that-is-associated-with-a-retro-odontoid-pseudotumor
#9
Mitsuru Takemoto, Masashi Neo, Shunsuke Fujibayashi, Takeshi Sakamoto, Masato Ota, Bungo Otsuki, Hiroki Kaneko, Takeshi Umebayashi
PURPOSE: A retro-odontoid pseudotumor that is not associated with rheumatoid arthritis or hemodialysis is clinically rare. The majority of surgeons select transoral resection as the surgical treatment, often followed by posterior fusion or posterior decompression and fusion. In contrast, some authors have reported success with simple decompression without posterior stabilization in cases where atlanto-axial instability (AAI) is either absent or minor. In this study, we have evaluated the clinical and radiographic outcomes of C1 laminectomy without fusion as the surgical treatment for patients with cervical myelopathy that is associated with a retro-odontoid pseudotumor...
December 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27869624/surgical-outcome-and-prognostic-analysis-of-transoral-atlantoaxial-reduction-plate-system-for-basilar-invagination-a-voxel-based-morphometry-study
#10
Gejin Wei, Chenglong Shi, Zhiyun Wang, Hong Xia, Qingshui Yin, Zenghui Wu
BACKGROUND: The use of a transoral atlantoaxial reduction plate (TARP) system is an effective surgical approach for the treatment of basilar invagination. With the aim of improving the therapeutic efficacy of the TARP operation, we conducted a voxel-based morphometric study to quantitatively investigate the descent of the odontoid process and craniocervical volume changes. METHODS: We enrolled 20 patients with basilar invagination who underwent a TARP procedure...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27857933/retro-odontoid-pseudotumor-without-atlantoaxial-subluxation-or-rheumatic-arthritis
#11
Seung Han Yu, Hyuk Jin Choi, Won Ho Cho, Seung Heon Cha, In Ho Han
We present a case of retro-odontoid pseudotumor (ROP) without rheumatoid arthritis (RA) or atlantoaxial subluxation (AAS). A 76-year-old woman presented with paresthesia and weakness of both lower and upper extremities. She had no laboratory or physical findings of RA. Dynamic X-ray showed no AAS and magnetic resonance imaging (MRI) showed a retro-odontoid mass compressing the spinal cord. Transdural mass debulking and biopsy were performed via minimal left suboccipital craniectomy and C1 hemilaminectomy. Two months after surgery, her symptoms were aggravated...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857796/dwarf-with-dual-spinal-kyphotic-deformity-at-the-cervical-and-dorsal-spine-unassociated-with-odontoid-hypoplasia-surgical-management
#12
Guru Dutta Satyarthee, Dipanker Singh Mankotia
Morquio's syndrome is associated with systemic skeletal hypoplasia leading to generalized skeletal deformation. The hypoplasia of odontoid process is frequent association, which is responsible for atlantoaxial dislocation causing compressive myelopathy. However, development of sub-axial cervical kyphotic deformity unassociated with odontoid hypoplasia is extremely rare, and coexistence of dorsal kyphotic deformity is not reported in the western literature till date and represents first case. Current case is 16-year-old boy, who presented with severe kyphotic deformity of cervical spine with spastic quadriparesis...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27832990/nonoperative-management-of-odontoid-fractures-is-halo-vest-immobilization-warranted
#13
Randall J Hlubek, Peter Nakaji
No abstract text is available yet for this article.
November 8, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27830873/kinematic-mri-study-of-the-brain-stem-and-cervical-cord-by-dynamic-neck-motion
#14
Miloš Mališ, Biljana Georgievski, Ivan Milić, Aleksandar Mijatović, Vladan Kovačević, Dijana Lazić, Slobodan Kapor, Slobodan Marinkovic
BACKGROUND: The aim was to examine the position of the brain stem and cervical cord following the neck flexion and extension. MATERIALS AND METHODS: The serial sagittal T2-weighted MRI sections of the cervical cord and brain stem were made in 6 volunteers. The images were mainly used to measure certain distances and angles of the brain stem and cervical cord in the neutral position, and then following the head and neck flexion and extension. RESULTS: The measurements showed that the pons is slightly closer to the clivus following the neck flexion, the medulla oblongata is somewhat distant to the basion but closer to the odontoid process...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27816774/-caveat-emptor
#15
James R van Dellen
No abstract text is available yet for this article.
November 2, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27811727/revision-of-afrotropical-dyscritobaeus-perkins-1910-hymenoptera-scelionidae
#16
Francesco Tortorici, Virgilio Caleca, Simon Van Noort, Lubomir Masner
A revision of Afrotropical species of Dyscritobaeus Perkins is presented with re-description of the four known species (D. bicolor O'Connor et Ashe, D. comitans Perkins, D. parvipennis (Dodd) and D. sulawensis Mineo, O'Connor et Ashe) and description of six new species (D. antananarivensis Tortorici et Caleca sp. nov., D. flavus Tortorici et Caleca sp. nov., D. kilimanjarensis Tortorici et Caleca sp. nov., D. madagascarensis Tortorici et Caleca sp. nov., D. ndokii Tortorici et Caleca sp. nov. and D. tanzaniensis Tortorici et Caleca sp...
October 20, 2016: Zootaxa
https://www.readbyqxmd.com/read/27810454/management-of-type-ii-odontoid-fractures-latin-american-spine-centers-experience
#17
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Carlos Rocca Siri, Jefferson W Daniel, José Carlos Esteves Veiga, Gustavo Borges Laurindo de Azevedo, Ratko Yurac, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Andre Cecchini, Marcelo Martins do Reis, K Daniel Riew
OBJECTIVE: To analyze the characteristics of type-II odontoid fractures (TII-OF); the clinical and radiographical factors that influence surgical planning in eight Latin American centers. METHODS: Retrospective chart review of 88 patients reported with TII-OF between 2004 and 2015 from eight Latin American centers. The studied parameters were: (I) demographic data, (II) cause of fracture, (III) clinical and neurologic presentation, (IV) characteristics of the fracture (degree of odontoid displacement, displacement of the odontoid relative to the C2 body, anatomy of the fracture line, the distance between fragments, presence of comminution, contact area between the odontoid and the C2 body, (V) type of treatment, (VI) clinical and radiographic outcome...
October 31, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27807772/invariance-of-head-pelvis-alignment-and-compensatory-mechanisms-for-asymptomatic-adults-older-than-49%C3%A2-years
#18
Celia Amabile, Jean-Charles Le Huec, Wafa Skalli
PURPOSE: The aim was to quantify the postural alignment of asymptomatic elderly, in comparison to a reference population, searching for possible invariants and compensatory mechanisms. METHODS: 41 volunteers (49-76 years old) underwent bi-planar X-rays with 3D reconstructions of the spine and pelvis. Alignment parameters were compared with those of a reference group of asymptomatic subjects younger than 40 years old, with a particular focus on center of acoustic meati (CAM) and odontoid (OD) with regard to hip axis (HA)...
November 2, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27756660/external-immobilisation-of-odontoid-fractures-a-systematic-review-to-compare-the-halo-and-hard-collar
#19
Mueez Waqar, Dmitri Van-Popta, Damiano G Barone, Zaid Sarsam
INTRODUCTION: The aim of this systematic review was to compare the halo and hard collar in the management of adult odontoid fractures. METHODS: Systematic and independent searches on MEDLINE (PubMed) and the Cochrane database. INCLUSION CRITERIA: (1) clinical outcomes, (2) in adults (≥18), (3) with odontoid fractures, (4) immobilised using a halo or hard collar, (5) in multiple (>5) patients. Treatment failure rates were calculated as the proportion requiring operative intervention...
October 15, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27740395/letter-to-the-editor-retro-odontoid-mass
#20
Atul Goel
No abstract text is available yet for this article.
October 14, 2016: Journal of Neurosurgery. Spine
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