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https://www.readbyqxmd.com/read/28516166/onset-and-remodeling-of-coronal-imbalance-after-selective-posterior-thoracic-fusion-for-lenke-1c-and-2c-adolescent-idiopathic-scoliosis-a-pilot-study
#1
Masayuki Ishikawa, Kai Cao, Long Pang, Nobuyuki Fujita, Mitsuru Yagi, Naobumi Hosogane, Takashi Tsuji, Masafumi Machida, Shinichi Ishihara, Makoto Nishiyama, Yasuyuki Fukui, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Postoperative coronal imbalance is a significant problem after selective thoracic fusion for primary thoracic and compensatory lumbar curves in adolescent idiopathic scoliosis (AIS). However, longitudinal studies on postoperative behavior of coronal balance are lacking. This multicenter retrospective study was conducted to analyze factors related to onset and remodeling of postoperative coronal imbalance after posterior thoracic fusion for Lenke 1C and 2C AIS. METHODS: Twenty-one Lenke 1C or 2C AIS patients, who underwent posterior thoracic fusion ending at L3 or above, were included with a minimum 2-year follow-up...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28475019/retrospective-analysis-underestimates-neurological-deficits-in-complex-spinal-deformity-surgery-a-scoli-risk-1-study
#2
Michael P Kelly, Lawrence G Lenke, Jakub Godzik, Ferran Pellise, Christopher I Shaffrey, Justin S Smith, Stephen J Lewis, Christopher P Ames, Leah Y Carreon, Michael G Fehlings, Frank Schwab, Adam L Shimer
OBJECTIVE The authors conducted a study to compare neurological deficit rates associated with complex adult spinal deformity (ASD) surgery when recorded in retrospective and prospective studies. Retrospective studies may underreport neurological deficits due to selection, detection, and recall biases. Prospective studies are expensive and more difficult to perform, but they likely provide more accurate estimates of new neurological deficit rates. METHODS New neurological deficits were recorded in a prospective study of complex ASD surgeries (pSR1) with a defined outcomes measure (decrement in American Spinal Injury Association lower-extremity motor score) for neurological deficits...
May 5, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28474846/donor-stabilized-silylene-phosphine-supported-carbon-0-center-with-high-electron-density
#3
Thibault Troadec, Tatsuya Wasano, Romaric Lenk, Antoine Baceiredo, Nathalie Saffon-Merceron, Daisuke Hashizume, Yosuke Saito, Norio Nakata, Vicenç Branchadell, Tsuyoshi Kato
An isolable donor-stabilized silavinylidene phosphorane was synthesized. This molecule, which can also be regarded as a new carbon(0) complex featuring a phosphine and a donor-stabilized silylene ligand, presents a central carbon atom with a remarkably high electron density (-1.82). Furthermore, the experimental electron-density study of this compound demonstrates the delocalization of the σ-lone pair at the central carbon atom toward the silicon center, a feature which is remarkably different from electronic situation of other bent-allene-type molecules...
May 5, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28470973/validation-of-a-khv-antibody-enzyme-linked-immunosorbent-assay-elisa
#4
S M Bergmann, Q Wang, W Zeng, Y Li, Y Wang, M Matras, M Reichert, D Fichtner, M Lenk, T Morin, N J Olesen, H F Skall, P-Y Lee, S Zheng, S Monaghan, S Reiche, W Fuchs, M Kotler, K Way, G Bräuer, K Böttcher, A Kappe, J Kielpinska
Koi herpesvirus (KHV) causes KHV disease (KHVD). The virus is highly contagious in carp or koi and can induce a high mortality. Latency and, in some cases, a lack of signs presents a challenge for virus detection. Appropriate immunological detection methods for anti-KHV antibodies have not yet been fully validated for KHV. Therefore, it was developed and validated an enzyme-linked immunosorbent assay (ELISA) to detect KHV antibodies. The assay was optimized with respect to plates, buffers, antigens and assay conditions...
May 4, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28451507/assessment-of-a-learning-strategy-among-spine-surgeons
#5
Alberto Ofenhejm Gotfryd, Jose Alfredo Corredor, William Jacobsen Teixeira, Delio Eulálio Martins, Jeronimo Milano, Alexandre Sadao Iutaka
STUDY DESIGN: Pilot test, observational study. OBJECTIVE: To evaluate objectively the knowledge transfer provided by theoretical and practical activities during AOSpine courses for spine surgeons. METHODS: During two AOSpine principles courses, 62 participants underwent precourse assessment, which consisted of questions about their professional experience, preferences regarding adolescent idiopathic scoliosis (AIS) classification, and classifying the curves by means of the Lenke classification of two AIS clinical cases...
February 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28449963/sequential-magnetic-resonance-imaging-reveals-individual-level-deformities-of-vertebrae-and-discs-in-the-growing-scoliotic-spine
#6
Bethany E Keenan, Maree T Izatt, Geoffrey N Askin, Robert D Labrom, Damon D Bennett, Mark J Pearcy, Clayton J Adam
STUDY DESIGN: The aim of this study was to measure contributions of individual vertebra and disc wedging to coronal Cobb angle in the growing scoliotic spine using sequential magnetic resonance imaging (MRI). Clinically, the Cobb angle measures the overall curve in the coronal plane but does not measure individual vertebra and disc wedging. It was hypothesized that patients whose deformity progresses will have different patterns of coronal wedging in vertebrae and discs to those of patients whose deformities remain stable...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28449961/risk-factors-of-proximal-junctional-kyphosis-in-adolescent-idiopathic-scoliosis-the-pelvis-and-other-considerations
#7
Baron S Lonner, Yuan Ren, Peter O Newton, Suken A Shah, Amer F Samdani, Harry L Shufflebarger, Jahangir Asghar, Paul Sponseller, Randal R Betz, Burt Yaszay
STUDY DESIGN: Prospective multicenter database study. OBJECTIVES: To assess the incidence of proximal junctional kyphosis (PJK) in operative adolescent idiopathic scoliosis (AIS) using contemporary surgical techniques and to identify risk factors for PJK. SUMMARY OF BACKGROUND DATA: The incidence of PJK has been reported as high as 46% in AIS. Factors associated with PJK have been incompletely explored. METHODS: Prospectively enrolled 851 AIS patients (2000-2011, 78...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28449959/resource-utilization-in-adolescent-idiopathic-scoliosis-surgery-is-there-opportunity-for-standardization
#8
Baron S Lonner, Courtney S Toombs, Justin C Paul, Suken A Shah, Harry L Shufflebarger, John M Flynn, Peter O Newton
INTRODUCTION: Recent healthcare reforms have raised the importance of cost and value in the management of disease. Value is a function of benefit and cost. Understanding variability in resources utilized by individual surgeons to achieve similar outcomes may provide an opportunity for cutting costs though greater standardization. The purpose of this study is to evaluate differences in use of implants and hospital resources among surgeons performing adolescent idiopathic scoliosis (AIS) surgery...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28441683/geometric-torsion-in-adolescent-idiopathic-scoliosis-a-new-method-to-differentiate-between-lenke-1-subtypes
#9
Jesse Shen, Samuel Kadoury, Hubert Labelle, Marjolaine Roy-Beaudry, Carl-Éric Aubin, Stefan Parent
STUDY DESIGN: Consecutive case series. OBJECTIVE: To study geometric torsion in thoracic adolescent idiopathic scoliosis (AIS) to propose it as a numerical three-dimensional (3D) parameter that quantifies the scoliosis deformity. SUMMARY OF BACKGROUND DATA: AIS is a 3D deformity of the spine. The most widely accepted and used classification systems, however, still rely on two-dimensional aspects of x-rays. Yet, a 3D classification of AIS remains elusive because there is no widely accepted 3D parameter in the clinical practice...
May 1, 2017: Spine
https://www.readbyqxmd.com/read/28441310/a-dose-response-curve-for-a-gram-negative-spinal-implant-infection-model-in-rabbits
#10
Joseph L Laratta, Jamal N Shillingford, Nathan Hardy, Ronald A Lehman, Lawrence G Lenke, K Daniel Riew
STUDY DESIGN: Randomized complete block animal spinal implant infection model with internal control. OBJECTIVE: To develop a spinal implant animal infection model to simulate postoperative gram-negative wound infection. SUMMARY OF BACKGROUND DATA: Implant-associated surgical site infections (SSI) remain a dreaded complication of spinal surgery. Currently, over 30% of all spine SSIs are secondary to gram-negative bacteria. Traditional animal models have utilized gram-positive inoculums to simulate postoperative infection, but there exists no model in the literature for gram-negative infection in the setting of spinal instrumentation...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28437336/both-bilateral-breast-volume-discrepancy-and-asymmetric-anterior-chest-wall-shape-contribute-to-the-unsightly-breast-contour-in-female-right-thoracic-idiopathic-scoliosis
#11
Benlong Shi, Saihu Mao, Xu Sun, Leilei Xu, Feng Zhu, Zezhang Zhu, Bangping Qian, Weijun Wang, Yong Qiu
STUDY DESIGN: A retrospective radiographic study. OBJECTIVE: To evaluate the asymmetry of breast volume (BV) and shape in female adolescent idiopathic scoliosis (AIS) patients and to define their relationship with deformed components of the anterior chest wall and curved spine. SUMMARY OF BACKGROUND DATA: The higher incidence of asymmetric breast development in AIS was described by prior studies. However, the interplay between scoliosis curve magnitude and severity of breast asymmetry (BA) are unknown...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28417221/co-localization-of-zinc-transporter-3-znt3-with-sensory-neuromediators-and-or-neuromodulators-in-the-enteric-nervous-system-of-the-porcine-esophagus
#12
Joanna Wojtkiewicz, Liliana Rytel, Krystyna Makowska, Sławomir Gonkowski
Zinc transporter 3 (ZnT3) is one of the zinc transporters family. It is closely connected to the nervous system, where enables the transport of zinc ions from the cytoplasm to synaptic vesicles. This substance has been described within the central and peripheral nervous system, especially in the enteric nervous system (ENS). The aim of the present study was to describe the co-localization of ZnT3 with selected neuromediators and/or neuromodulators participating in sensory stimuli conduction in neurons of the ENS within the porcine esophagus...
June 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28416835/-polymethylmethacrylate-augmentation-of-bone-cement-injectable-cannulated-pedicle-screws-was-used-to-treat-degenerative-lumbar-scoliosis-with-osteoporosis
#13
H L Sun, C D Li, X W Li, X D Yi, H Liu, H L Lu, H Li, Z R Yu, Y Wang
OBJECTIVE: To describe the application of polymethylmethacrylate (PMMA) augmentation of cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis. METHODS: Retrospective cohort study was used to compare cement injectable cannulated pedicle screws (CICPs) group with PMMA augmentation and control group with traditional method in the correction surgery for Lenke-silva level III and level IV degenerative scoliosis cases with osteoporosis...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28399544/intrawound-tobramycin-powder-eradicates-surgical-wound-contamination-an-in-vivo-rabbit-study
#14
Joseph L Laratta, Jamal N Shillingford, Nathan Hardy, Joseph M Lombardi, Comron Saifi, Alexander Romanov, Lawrence G Lenke, Ronald A Lehman, K Daniel Riew
STUDY DESIGN: Therapeutic anti-infective trial in rabbitsOBJECTIVE.: The purpose of the present study was to assess the efficacy of intrawound tobramycin powder in terms of eradicating a known bacterial contamination in an Escherichia coli infected rabbit spinal implantation model. SUMMARY OF BACKGROUND DATA: Implant-associated surgical site infections (SSI) remain a dreaded complication of spinal surgery. Currently, over 30% of all spine SSIs are secondary to gram-negative bacteria...
April 10, 2017: Spine
https://www.readbyqxmd.com/read/28389887/selective-versus-hyperselective-posterior-fusions-in-lenke-5-adolescent-idiopathic-scoliosis-comparison-of-radiological-and-clinical-outcomes
#15
B Ilharreborde, E Ferrero, A Angelliaume, Y Lefèvre, F Accadbled, A L Simon, J Sales de Gauzy, K Mazda
PURPOSE: Recent literature has reported that the ]progression risk of Lenke 5 adolescent idiopathic scoliosis (AIS) during adulthood had been underestimated. Surgery is, therefore, proposed more to young patients with progressive curves. However, choice of the approach and fusion levels remains controversial. The aim of this study was to analyze the influence of the length of posterior fusion on clinical and radiological outcomes in Lenke 5 AIS. METHODS: All Lenke 5 AIS operated between 2008 and 2012 were included with a minimum 2-year follow-up...
April 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28379517/convex-rod-derotation-maneuver-on-lenke-type-i-adolescent-idiopathic-scoliosis
#16
Huang Zifang, Fan Hengwei, Deng Yaolong, Sui Wenyuan, Wang Qifei, Cao Lei, Fobao Li, Yang Junlin
BACKGROUND: Convex-rod derotation may have potential advantages for adolescent idiopathic scoliosis (AIS) correction; however, study of this technique has been limited. OBJECTIVE: To compare the radiographic outcomes of Lenke type I AIS patients treated by the convex- or concave-rod derotation maneuvers. METHODS: A retrospective study was designed to compare 2 cohorts, including 81 Lenke type I AIS patients treated with convex-rod derotation (n = 38) or concave-rod derotation (n = 43), between July 2008 and September 2012...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350940/recent-and-emerging-advances-in-spinal-deformity
#17
Justin S Smith, Christopher I Shaffrey, Shay Bess, Mohammed F Shamji, Darrel Brodke, Lawrence G Lenke, Michael G Fehlings, Virginie Lafage, Frank Schwab, Alexander R Vaccaro, Christopher P Ames
BACKGROUND: Over the last several decades, significant advances have occurred in the assessment and management of spinal deformity. OBJECTIVE: The primary focus of this narrative review is on recent advances in adult thoracic, thoracolumbar, and lumbar deformities, with additional discussions of advances in cervical deformity and pediatric deformity. METHODS: A review of recent literature was conducted. RESULTS: Advances in adult thoracic, thoracolumbar, and lumbar deformities reviewed include the growing applications of stereoradiography, development of new radiographic measures and improved understanding of radiographic alignment objectives, increasingly sophisticated tools for radiographic analysis, strategies to reduce the occurrence of common complications, and advances in minimally invasive techniques...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28349268/segmental-vs-non-segmental-thoracic-pedicle-screws-constructs-in-adolescent-idiopathic-scoliosis-is-there-any-implant-alloy-effect
#18
Mario Di Silvestre, Georgeous Bakaloudis, Carlo Ruosi, Valerio Pipola, Gianluca Colella, Tiziana Greggi, Alberto Ruffilli, Francesco Vommaro
PURPOSE: The aim of this study is to understand how many anchor sites are necessary to obtain maximum posterior correction of idiopathic scoliotic curve and if the alloy of instrumentation, stainless steel or titanium, may have a role in the percent of scoliosis correction. METHODS: We reviewed 143 consecutive patients, affected by AIS (Lenke 1-2), who underwent a posterior spinal fusion with pedicle screw-only instrumentation between 2002 and 2005. According to the implant density and alloy used we divided the cohort in four groups...
March 27, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28330700/the-effect-of-kinesio-taping-on-back-pain-in-patients-with-lenke-type-1-adolescent-idiopathic-scoliosis-a-randomized-controlled-trial
#19
Yunus Atici, Canan Gonen Aydin, Aysegul Atici, Mehmet Ozbey Buyukkuscu, Yavuz Arikan, Mehmet Bulent Balioglu
PURPOSE: This study investigated the short-term effects of KT on back pain (BP) in patients with Lenke Type 1 adolescent idiopathic scoliosis (AIS). METHODS: We chosen Lenke Type 1 scoliosis who have had only back pain (the localization of the pain: the only in the apical convex edge). Forty patients suffering from BP with Lenke Type 1 AIS were randomly separated into two groups, Group 1 (20 patients) and Group 2 (20 patients). Group 1 was given KT with tension and home exercises and Group 2 was given KT without tension and home exercises...
March 19, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28323715/the-safety-and-strength-of-a-novel-medial-partial-nonthreaded-pedicle-screw-a-cadaveric-and-biomechanical-investigation
#20
Mun Keong Kwan, Chris Yin Wei Chan, Lim Beng Saw, Shanmugam Rukmanikanthan, Lawrence G Lenke
STUDY DESIGN: Cadaveric and biomechanical study. OBJECTIVE: The aim of this study was to assess the safety and pullout strength of medial, partial nonthreaded thoracic pedicle screws compared with conventional screws. SUMMARY OF BACKGROUND DATA: The perforation rate of the pedicle screws has been reported as high as 41%. Nerve injury and irritation can result from the compression of malpositioned screw on neural structures. METHODS: Ten fresh cadavers were studied...
April 2017: Clinical Spine Surgery
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