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https://www.readbyqxmd.com/read/28343332/posterior-elements-disruption-with-hybrid-constructs-in-ais-patients-is-there-an-impact-on-proximal-junctional-kyphosis
#1
S Ghailane, Sebastien Pesenti, E Peltier, E Choufani, B Blondel, J L Jouve
PURPOSE: Proximal junctional kyphosis (PJK) is a frequent proximal adjacent segment disease following spinal fusion in adolescent idiopathic scoliosis (AIS) and its rate has been estimated to 28% in the literature. The etiology is multifactorial, and risk factors associated with PJK are controversial. The aim of this study was to demonstrate that the disruption of muscular and bony tissue above the upper instrumented vertebra (UIV) during surgery does not increase the rate of PJK in patients undergoing posterior fusion for adolescent idiopathic scoliosis...
March 25, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28343308/the-nociceptive-withdrawal-response-of-the-foot-in-the-spinalized-rat-exhibits-limited-dependence-on-stimulus-location
#2
Corey L Cleland, Craig E Esquivel, Heath T Davis
The nociceptive withdrawal response (NWR) of the limb is a protective, multi-joint movement in response to noxious stimulation of the homonymous limb. Previous studies in animal models differed as to the dependence of the response direction and magnitude on stimulus location. The specific aim of our research was to use three-dimensional high-speed video to determine whether movement of the foot in response to heat stimuli delivered to the foot and lower leg depended on the location of the stimulus. In particular, we sought to determine whether the movement strategy was categorical or continuous...
March 25, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28343307/modular-organization-of-muscle-activity-patterns-in-the-leading-and-trailing-limbs-during-obstacle-clearance-in-healthy-adults
#3
Michael J MacLellan
Human locomotor patterns require precise adjustments to successfully navigate complex environments. Studies suggest that the central nervous system may control such adjustments through supraspinal signals modifying a basic locomotor pattern at the spinal level. To explore this proposed control mechanism in the leading and trailing limbs during obstructed walking, healthy young adults stepped over obstacles measuring 0.1 and 0.2 m in height. Unobstructed walking with no obstacle present was also performed as a baseline...
March 25, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28343254/dynamic-measurements-of-cervical-neural-foramina-during-neck-movements-in-asymptomatic-young-volunteers
#4
Victor Chang, Azam Basheer, Timothy Baumer, Daniel Oravec, Colin P McDonald, Michael J Bey, Stephen Bartol, Yener N Yeni
PURPOSE: Neural foraminal dimensions are considered important in nerve root compression and development of cervical radiculopathy, but baseline data regarding their range during normal motion are not available. An in vivo study of cervical foraminal motion was conducted to characterize normal 3D dynamic foraminal dimensions during physiological neck motion and compare between different tasks and intervertebral segments. METHODS: Biplane X-ray imaging and computed tomography-based markerless tracking were used to measure foraminal height (FH) and width (FW) from five asymptomatic subjects during neck axial rotation and extension...
March 25, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28343240/childhood-angular-kyphosis-a-plea-for-involvement-of-the-pediatric-neurosurgeon
#5
E Cornips, S Koudijs, J Vles, L van Rhijn
INTRODUCTION: Childhood angular kyphosis is rare, as most children are affected by a mixed kyphotic and scoliotic deformity. Published series involving a mix of kyphosis and kyphoscoliosis, pediatric and adult, congenital and acquired cases are almost exclusively authored by orthopedic surgeons, suggesting that (pediatric) neurosurgeons are not involved. CASE SERIES: We present five cases that illustrate the spectrum of angular kyphosis, and these were treated by a multidisciplinary team including child neurologist, orthopedic surgeon, and pediatric neurosurgeon as complementary partners...
March 25, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28343168/potential-skin-involvement-in-als-revisiting-charcot-s-observation-a-review-of-skin-abnormalities-in-als
#6
Bastien Paré, François Gros-Louis
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease affecting motor neurons of the brain and spinal cord, leading to progressive paralysis and death. Interestingly, many skin changes have been reported in ALS patients, but never as yet fully explained. These observations could be due to the common embryonic origin of the skin and neural tissue known as the ectodermal germ layer. Following the first observation in ALS patients' skin by Dr Charcot in the 19th century, in the absence of bedsores unlike other bedridden patients, other morphological and molecular changes have been observed...
March 25, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28343150/combined-intramedullary-and-intradural-extramedullary-spinal-metastases-in-malignant-melanoma
#7
Michael Kevin O'Reilly, Gavin Sugrue, Danielle Byrne, Peter MacMahon
No abstract text is available yet for this article.
March 25, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28343075/an-update-on-application-of-nanotechnology-and-stem-cells-in-spinal-cord-injury-regeneration
#8
REVIEW
Kazem Nejati-Koshki, Yousef Mortazavi, Younes Pilehvar-Soltanahmadi, Sumit Sheoran, Nosratollah Zarghami
Spinal cord injury (SCI) is damage to the spinal cord that leads to sudden loss of motor and autonomic function and sensory under the level of the injury. The pathophysiological advancement of SCI is divided into two categories: primary injury and secondary injury. Due to the loss of motor, sensory, or cognitive function, a patient's quality of life is likely reduced and places a great burden on society in order to supply health care costs. Therefore, it is important to develop suitable therapeutic strategies for SCI therapy...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28343047/the-odyssey-of-sagittal-pelvic-morphology-during-human-evolution-a-perspective-on-different-hominoidae
#9
Tom P C Schlösser, Michiel M A Janssen, Tom Hogervorst, Tomaž Vrtovec, John de Vos, F Cumhur Öner, René M Castelein
The importance of sagittal spino-pelvic alignment for posture and upright human spinal biomechanics, and its role in the etio-pathogenesis of different spinal pathologies is well recognized. In human evolution, morphological changes of the pelvis are believed to be a crucial step forward towards pertinent bipedalism. By comparison of sagittal pelvic morphology within the superfamily of Hominoidea, we have the perspective that in the course of human evolution, development of a lordosis between the ischium and ilium, and the consequent increase in pelvic incidence allowed for ambulation in a fully upright position while maintaining the lever arm of the ischial musculature...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28343046/perioperative-hemoglobin-a1c-as-a-predictor-of-deep-infection-following-single-level-lumbar-decompression-in-patients-with-diabetes
#10
Jourdan M Cancienne, Brian C Werner, Dennis Q Chen, Hamid Hassanzadeh, Adam L Shimer
BACKGROUND CONTEXT: Although multiple studies have cited diabetes mellitus as a risk factor decreased functional outcomes, increased infectious complications, and overall increased reoperation rate following degenerative lumbar spinal surgery, few have investigated how perioperative glycemic control influences such complications. PURPOSE: The primary goal of the present study was to use a national database to evaluate the association of perioperative glycemic control as demonstrated by Hemoglobin A1c levels in patients with diabetes undergoing primary, single level decompression without concomitant fusion with the incidence of deep postoperative infection following requiring operative irrigation and debridement...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28342993/teratogenic-responses-of-zebrafish-embryos-to-decabromodiphenyl-ether-bde-209-in-the-presence-of-nano-sio2-particles
#11
Shu-Ju Chao, Chin Pao Huang, Pei-Chung Chen, Chihpin Huang
This study investigated the influence of nano-SiO2 particles (nSiO2) on the teratogenic responses of zebrafish embryos to decabromodiphenyl ether (BDE-209). Zebrafish embryos were exposed to BDE-209 in the absence and presence of nSiO2 for 96 h post fertilization (hpf). Results showed that formation of nSiO2-BDE-209 associates promoted both extracellular and intracellular uptake of BDE-209 by zebrafish embryos, thereby increasing the bioconcentration of BDE-209 on the chorion surface and the embryos. Results also showed embryos delay hatching temporarily when co-exposure to BDE-209 and nSiO2 at 60 hpf...
March 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28342919/radiation-exposure-to-the-surgeon-during-ultrasound-assisted-transforaminal-percutaneous-endoscopic-lumbar-discectomy-a-prospective-study
#12
Ruihui Wu, Xuqiang Liao, Hong Xia
PURPOSE: To determine the radiation dose to the surgeon during ultrasound-assisted transforaminal percutaneous endoscopic lumbar discectomy (transforaminal PELD) for lumbar disc herniation, and investigate whether the usage of ultrasonography could reduce the radiation exposure to surgeon. METHODS: The stages of needle insertion and foraminal plasty for transforaminal PELD were performed under ultrasound guidance and confirmed by fluoroscopy according to the standard technique by two spinal surgeons separately in 25 transforaminal PELDs (25 levels)...
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28342829/effects-of-peer-mentoring-on-self-efficacy-and-hospital-readmission-following-inpatient-rehabilitation-of-individuals-with-spinal-cord-injury-a-randomized-controlled-trial
#13
Julie Gassaway, Michael L Jones, W Mark Sweatman, Minna Hong, Peter Anziano, Karen DeVault
OBJECTIVE: Investigate the effect of intensive peer mentoring on patient reported outcomes of self-efficacy and unplanned hospital readmissions for persons with spinal cord injury/disease (SCI/D) within the first 6 months after discharge from inpatient rehabilitation DESIGN: Randomized controlled trial; SETTING: Non-profit inpatient rehabilitation hospital specializing in care of persons with SCI/D and brain injury PARTICIPANTS: 158 patients admitted to the SCI rehabilitation program whose discharge location was a community setting...
March 22, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28342701/predictive-subtle-or-overlooked-initial-head-ct-findings-in-patients-who-develop-delayed-chronic-subdural-hematoma
#14
William C Olivero, Huan Wang, Arash Farahvar, Thomas A Kim, Fei Wang
With the aging population, the incidence of chronic subdural hematoma (CSDH) is expected to rise. Once symptomatic the morbidity from CSDH is not insignificant. We studied patients who had a minor head injury and CT brain scan prior to developing CSDH to determine if there were any predictors on these scans for subsequent development of a CSDH. A retrospective review was performed on all patients operated for CSDH over a 3-year period and a review performed on those who had imaging studies at the time of a preceding minor head injury...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28342638/-rationale-and-complications-of-the-anterior-lateral-extrapleural-retroperitoneal-approach-for-unstable-thoracolumbar-fractures-experience-in-86-consecutive-patients
#15
Pedro David Delgado-López, Antonio Rodríguez-Salazar, Vicente Martín-Velasco, Javier Martín-Alonso, José Manuel Castilla-Díez, Ana Galacho-Harriero, Elena Araús-Galdós
OBJECTIVES: To describe the rationale, pros and cons, and complications of the anterior-lateral extrapleural retroperitoneal approach for unstable (TLICS>4) thoracolumbar fractures. PATIENTS AND METHODS: Clinical and radiological data and outcomes from a cohort treated surgically via said approach were retrospectively reviewed. All patients were operated on exclusively by 5 neurosurgeons trained in spine surgery. RESULTS: Between June 1999 and December 2015, 86 patients underwent surgery (median age 42years, most common level: L1)...
March 22, 2017: Neurocirugía
https://www.readbyqxmd.com/read/28342408/finite-element-method-based-study-for-effect-of-adult-degenerative-scoliosis-on-the-spinal-vibration-characteristics
#16
Ming Xu, James Yang, Isador Lieberman, Ram Haddas
Finite element analysis was used to investigate the responses of five healthy subjects and five adult degenerative scoliosis (ADS) subjects to cyclic vibration. The dynamic responses of the healthy and scoliotic spines to the sinusoidal cyclic vibrations have been investigated in previous studies by simulation or experimental approaches. However, no simulation or experimental results were available for the ADS subjects. The effect of the ADS on the vibrational characteristics of spines remained unknown. The objective of this study was to compare differences of the dynamic responses to the cyclic vibration input between the healthy subjects and subjects with ADS...
March 22, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28342367/optimization-of-surface-electrodes-location-for-h-reflex-recordings-in-soleus-muscle
#17
Alberto Botter, Taian M Vieira
The Hoffmann reflex (H reflex) is extensively used to investigate the spinal motor neuron excitability in healthy and pathological subjects. Obtaining a representative and robust amplitude estimation of the H reflex is of marked relevance in clinical as well as in research applications. As for the motor responses, this issue is strictly related to the electrode positioning, especially for large, pinnate muscles such as the triceps surae. In this study we investigated the effect of electrode position on soleus H-reflex amplitude...
March 16, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28340519/barrington-s-nucleus-neuroanatomic-landscape-of-the-mouse-pontine-micturition-center
#18
Anne M J Verstegen, Veronique Vanderhorst, Paul A Gray, Mark L Zeidel, Joel C Geerling
Barrington's nucleus (Bar) is thought to contain neurons that trigger voiding and thereby function as the "pontine micturition center." Lacking detailed information on this region in mice, we examined gene and protein markers to characterize Bar and the neurons surrounding it. Like rats and cats, mice have an ovoid core of medium-sized Bar neurons located medial to the locus coeruleus (LC). Bar neurons express a GFP reporter for Vglut2, develop from a Math1/Atoh1 lineage, and exhibit immunoreactivity for NeuN...
March 24, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28340495/residents-learning-curve-of-lumbar-transforaminal-epidural-steroid-injections
#19
Holger Joswig, Sarah Roberta Haile, Gerhard Hildebrandt, Martin Nikolaus Stienen
Background and Study Aims There is a paucity of literature on beginners' training and on its connection with patient safety for transforaminal epidural steroid injections (TFESIs). This study retrospectively assessed the learning curves and associated complications of neurosurgery residents never previously exposed to TFESI and compared them with experienced board-certified faculty neurosurgeons (BCFNs). Material and Methods Procedure time in minutes, dose-area product (DAP) in cGy*cm(2), periprocedural observations, and complications in 354 TFESIs for radicular pain secondary to lumbar disk herniation or lumbar spinal stenosis were extracted from operative notes and the electronic infiltration logbook in the per-injection format...
March 24, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28340277/immunomodulatory-and-neuroprotective-effect-of-cryopreserved-allogeneic-mesenchymal-stem-cells-on-spinal-cord-injury-in-rats
#20
I R Rosado, P H Carvalho, E G L Alves, T M Tagushi, J L Carvalho, J F Silva, M S L Lavor, K M Oliveira, R Serakides, A M Goes, E G Melo
This study aimed to evaluate the immunomodulatory and neuroprotective effects of allogeneic and cryopreserved mesenchymal stem cells (MSCs) on spinal cord injury. A total of 120 rats were distributed into the following groups: negative control (NC) - without injury, positive control (PC) - with injury without treatment, and group treated with MSC (GMSC) - with injury and treated. Motor function was evaluated by the BBB test at 24, 48, and 72 h and at 8 and 21 postoperative days. Spinal cords were evaluated by histopathology and immunohistochemistry to determine the expression of CD68, NeuN, and GFAP...
March 22, 2017: Genetics and Molecular Research: GMR
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