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https://www.readbyqxmd.com/read/29456756/relationship-between-thoracic-kyphosis-and-neural-axis-abnormalities-in-patients-with-adolescent-idiopathic-scoliosis
#1
I Swarup, P Derman, E Sheha, J Nguyen, J Blanco, R Widmann
Purpose: Previous studies have suggested an association between increased thoracic kyphosis and neural axis abnormalities in patients with adolescent idiopathic scoliosis (AIS). However, the basis for this finding is unclear, and this association has been mainly noted in retrospective studies on a non-consecutive series of patients. The purpose of this study was to assess the relationship between thoracic kyphosis and neural axis abnormalities in patients with AIS. Methods: We studied a consecutive series of AIS patients treated with spinal fusion...
February 1, 2018: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/29455294/cervicothoracic-spine-duplication-a-10-year-follow-up-of-a-neurological-intact-boy
#2
REVIEW
Ozcan Kaya, Onur Levent Ulusoy, Selhan Karadereler, Azmi Hamzaoglu
PURPOSE: Spine duplication is a very rare condition with the literature being composed of only case reports. All previously reported cases were thoracolumbar spine duplications. Here, we report cervicothoracic spine duplication in a neurological intact male. According to our knowledge, it is the first case in the literature of cervicothoracic spine duplication. CLINICAL PRESENTATION: A 3-year-old patient presented to a primary physician with a complaint of short stature...
February 17, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29454133/prevalence-and-risk-factors-for-neural-axis-anomalies-in-idiopathic-scoliosis-a-systematic-review
#3
REVIEW
Johan L Heemskerk, Moyo C Kruyt, Dino Colo, René M Castelein, Diederik H R Kempen
BACKGROUND: There is ongoing controversy about the routine use of magnetic resonance imaging (MRI) preoperatively in patients with presumed idiopathic scoliosis (IS). Routine MRI can help identify possible causes for the deformity and detect anomalies which could complicate deformity surgery. However, routine MRI increases health care costs significantly and may reveal mild variations from normal without clinical relevance, that can still lead to anxiety and influence decision making...
February 14, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29445948/intraspinal-neural-axis-abnormalities-in-severe-spinal-deformity-a-10-year-mri-review
#4
Ying Zhang, Jingming Xie, Yingsong Wang, Ni Bi, Tao Li, Jie Zhang, Zhi Zhao, Hua Ou, Siyuan Liu
PURPOSE: Documents indicated that the average prevalence of intraspinal neural axis abnormalities (INAAs) in presumed idiopathic scoliosis (PIS) patients was about 17.7%. However, paucity study focuses on the incidence of INAAs in severe spinal deformity (SSDs). In this study, we investigate the incidence of intraspinal neural axis abnormalities (IINAAs) and the clinical relevance in SSD at a single center. METHODS: All the patients with SSDs admitted for spinal surgery were evaluated from 2003 to 2014...
February 14, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29444282/microsurgical-resection-of-large-thoracic-intramedullary-hemangioblastoma-with-long-segment-syrinx-3-dimensional-operative-video
#5
Sima Sayyahmelli, Mustafa K Baskaya
No abstract text is available yet for this article.
February 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29433818/spinal-adhesive-arachnoiditis-following-the-rupture-of-an-adamkiewicz-aneurysm-literature-review-and-a-case-illustration
#6
REVIEW
J Todeschi, S Chibbaro, A Gubian, R Pop, F Proust, H Cebula
BACKGROUND: The rupture of an isolated spinal aneurysm is an exceptional occurrence. It might be responsible for a spinal subarachnoid haemorrhage (SSAH) that in rare cases can be complicated by arachnoiditis. Among the former the adhesive type is the most severe leading to the formation of a cyst and/or a syrinx. PATIENTS AND METHODS: The literature review was performed via a PubMed search using the following keywords. Adhesive arachnoiditis; spinal subarachnoid haemorrhage; spinal arachnoiditis; spinal arachnoid cyst; arachnoid cyst ...
February 9, 2018: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29433178/radiological-evaluation-of-510-cases-of-basilar-invagination-with-evidence-of-atlantoaxial-instability-group-a-basilar-invagination
#7
Atul Goel, Sonal Jain, Abhidha Shah
OBJECTIVE: To evaluate the musculoskeletal and soft tissue neural alterations in cases with group A basilar invagination. METHODS: Between January 2007 and August 2016, 510 patients with group A basilar invagination were surgically treated. The radiologic images of these patients were reviewed retrospectively. The patients were divided into 4 groups: group A1, comprising 60 patients with syringomyelia; group A2, comprising 354 patients with "external syrinx," marked by excessive cerebrospinal fluid (CSF) in the extramedullary space; group A3, comprising 51 patients with both syringomyelia and external syrinx; and group A4, comprising 45 patients with no abnormality of CSF cavitation in the spinal canal...
February 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29424675/intradural-spinal-arachnoid-cyst-resection-implications-of-duraplasty-in-a-large-case-series
#8
Ziev B Moses, Gabriel N Friedman, David L Penn, Isaac H Solomon, John H Chi
OBJECTIVE Optimal diagnosis and management strategies for intradural spinal arachnoid cysts (SACs) are still unresolved given the rare nature of this entity, with few large case series and virtually no statistical analyses of patient characteristics in the literature. Here, the authors studied a large patient cohort with these lesions to determine whether pre- or postoperative attributes could be used to aid in either diagnosis or prognosis. METHODS A chart review was completed at a single institution for the period from 2002 to 2016 to determine the preoperative characteristics and postoperative outcomes of 21 patients with exclusively intradural SACs...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29415676/chiari-malformation-type-1-presenting-as-unilateral-progressive-foot-drop-a-case-report-and-review-of-literature
#9
Chamara Jayamanne, Lakkumar Fernando, Sachith Mettananda
BACKGROUND: Foot drop is a disabling clinical condition with multiplicity of causes, which requires detailed evaluation to identify the exact aetiology. Here, we report an extremely rare cause of foot drop in a child, which if not recognized early, could lead to multiple complications. CASE PRESENTATION: A 6-year-old girl presented with difficulty in walking and left sided foot droop for1-month duration. On examination she had reduced muscle power in dorsiflexors and plantar flexors and diminished knee and absent ankle jerk in the left side...
February 7, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29415002/vocal-individuality-in-drumming-in-great-spotted-woodpecker-a-biological-perspective-and-implications-for-conservation
#10
Michał Budka, Krzysztof Deoniziak, Tomasz Tumiel, Joanna Teresa Woźna
Animals-including conservation biologists-use acoustic signals to recognise and track individuals. The majority of research on this phenomenon has focused on sounds generated by vocal organs (e.g., larynx or syrinx). However, animals also produce sounds using other parts of the body, such as the wings, tail, legs, or bill. In this study we focused on non-syrinx vocalisation of the great spotted woodpecker, called drumming. Drumming consists of strokes of a bill on a tree in short, repeated series, and is performed by both males and females to attract mates and deter rivals...
2018: PloS One
https://www.readbyqxmd.com/read/29389719/results-of-casting-in-severe-curves-in-infantile-scoliosis
#11
Peter J Stasikelis, Ashley M Carpenter
BACKGROUND: Previous work has demonstrated best results for casting in infantile scoliosis when the curves are small and the child begins casting under 2 years of age. This study examines if casting can delay the need for growth friendly instrumentation in severe curves (50 to 106 degrees) and how the comorbidities of syrinx or genetic syndromes affected outcomes. METHODS: All children undergoing casting for scoliosis at a single institution over an 8-year period were examined...
January 31, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29380351/complex-coevolution-of-wing-tail-and-vocal-sounds-of-courting-male-bee-hummingbirds
#12
Christopher J Clark, Jimmy A McGuire, Elisa Bonaccorso, Jacob S Berv, Richard O Prum
Phenotypic characters with a complex physical basis may have a correspondingly complex evolutionary history. Males in the 'bee' hummingbird clade court females with sound from tail-feathers, which flutter during display dives. On a phylogeny of 35 species, flutter sound frequency evolves as a gradual, continuous character on most branches. But on at least six internal branches fall two types of major, saltational changes: mode of flutter changes, or the feather that is the sound source changes, causing frequency to jump from one discrete value to another...
January 29, 2018: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29354732/c7-intra-laminar-screws-for-complex-cervicothoracic-spine-surgery-a-case-series
#13
Peter John Wilson, Michael Derrick Selby
Background: C7 has relatively unique anatomy compared to the remainder of the subaxial cervical spine (C3-C6) and upper thoracic spine. The C7 laminar has been previously reported in feasibility and biomechanical studies as an adequate fixation point in contrast to the lateral mass or pedicles, with few reports of its use in clinical practice. The purpose of this study was to review the safety and efficacy of using the C7 laminar as a fixation point in constructs involving the cervical spine and cervicothoracic junction...
December 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29322535/anatomy-of-the-upper-respiratory-tract-in-domestic-birds-with-emphasis-on-vocalization
#14
REVIEW
C Casteleyn, P Cornillie, S Van Cruchten, W Van den Broeck, C Van Ginneken, P Simoens
This work reviews the anatomy of the upper respiratory tract in domestic birds including the chicken and pigeon. Non-exhaustive additional information on other bird species, illustrating the extraordinary diversity in the biological class Aves, can be found in several footnotes. The described anatomical structures are functionally considered in view of avian sound production. In particular, the Syrinx is invaluable. Its most important structures are the Labia and the lateral and medial tympaniform membranes in non-songbirds and songbirds, respectively...
January 11, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29285404/cervicothoracic-syringomyelia-caused-by-cervical-spinal-stenosis-case-report-and-literature-review
#15
Mohamed Badri, Ghassen Gader, Kamel Bahri, Ihsen Zammel
Background: Syringomyelia is commonly associated with Chiari malformations, spinal trauma, arachnoiditis, or tumors. However, rarely, cervical canal stenosis is implicated in intramedullary cavitations. Case Discription: Here, we report the case of a 60-year-old male patient who presented with loss of pain and temperature sensation in upper extremities associated with a spastic tetraparesis. On magnetic resonance imaging, the patient was found to have syringomyelia extending from C1 to Th3...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29280009/intramedullary-ependymoma-long-term-outcome-after-surgery
#16
N Svoboda, O Bradac, P de Lacy, V Benes
BACKGROUND: Overall (OS) and progression-free survival (PFS) of patients undergoing spinal ependymoma resection has been frequently reported. Contrarily, OS and PFS of purely intramedullary ependymomas have not been clearly determined yet. METHODS: The data of 37 patients undergoing resection of an intramedullary ependymoma (IE) from January 2000 to December 2016 were analysed retrospectively. RESULTS: The mean age was 46 years. The male:female ratio was 24:13...
December 26, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29236893/pan-syrinx-and-syringomyelia
#17
Leonardo Palacios-Sánchez, Juan Sebastián Botero-Meneses, María Camila Vélez-Flórez
Many myths and legends have had a deep influence on modern language, and on modern medical vernacular. The terms "syrinx" and "panic"are two of the most characteristic examples and their use in neurology and other specialties is well known. This article reviews the history of these words in Greek mythology and their use in modern medicine. It is known by very few that clinical symptoms or conditions, such as syringomyelia and panic attacks, have a mythological origin in their definition and naming.
December 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29171800/chiari-related-scoliosis-a-single-center-experience-with-long-term-radiographic-follow-up-and-relationship-to-deformity-correction
#18
Vijay M Ravindra, Kaine Onwuzulike, Robert S Heller, Robert Quigley, John Smith, Andrew T Dailey, Douglas L Brockmeyer
OBJECTIVE Previous reports have addressed the short-term response of patients with Chiari-related scoliosis (CRS) to suboccipital decompression and duraplasty (SODD); however, the long-term behavior of the curve has not been well defined. The authors undertook a longitudinal study of a cohort of patients who underwent SODD for CRS to determine whether there are factors related to Chiari malformation (CM) that predict long-term scoliotic curve behavior and need for deformity correction. METHODS The authors retrospectively reviewed cases in which patients underwent SODD for CRS during a 14-year period at a single center...
November 24, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29170980/from-electromyographic-activity-to-frequency-modulation-in-zebra-finch-song
#19
Juan F Döppler, Alan Bush, Franz Goller, Gabriel B Mindlin
Behavior emerges from the interaction between the nervous system and peripheral devices. In the case of birdsong production, a delicate and fast control of several muscles is required to control the configuration of the syrinx (the avian vocal organ) and the respiratory system. In particular, the syringealis ventralis muscle is involved in the control of the tension of the vibrating labia and thus affects the frequency modulation of the sound. Nevertheless, the translation of the instructions (which are electrical in nature) into acoustical features is complex and involves nonlinear, dynamical processes...
November 23, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/29145838/mri-characteristics-for-phantom-scratching-in-canine-syringomyelia
#20
Zoe R Nalborczyk, Angus K McFadyen, Jelena Jovanovik, Anna Tauro, Colin J Driver, Noel Fitzpatrick, Susan P Knower, Clare Rusbridge
BACKGROUND: A classic sign of canine syringomyelia (SM) is scratching towards one shoulder. Using magnetic resonance imaging (MRI) we investigate the spinal cord lesion relating to this phenomenon which has characteristics similar to fictive scratch secondary to spinal cord transection. Medical records were searched for Cavalier King Charles spaniels with a clinical and MRI diagnosis of symptomatic SM associated with Chiari-like malformation (CM). The cohort was divided into SM with phantom scratching (19 dogs) and SM but no phantom scratching (18 dogs)...
November 16, 2017: BMC Veterinary Research
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