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Idiopathic scoliosis

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https://www.readbyqxmd.com/read/29135881/maturity-indicators-and-adolescent-idiopathic-scoliosis-evaluation-of-the-sanders-maturity-scale
#1
Kevin M Neal, Eric D Shirley, Gary M Kiebzak
STUDY DESIGN: Retrospective review. OBJECTIVE: To determine the correlation between the Sanders Maturity Scale (SMS) and Risser stages, between both systems and menarche, and whether Risser can be used to predict SMS. SUMMARY OF BACKGROUND DATA: Predicting curve progression is critical to understanding adolescent idiopathic scoliosis and making treatment recommendations. The SMS is a better predictor of the curve acceleration phase of growth than the Risser stage...
November 10, 2017: Spine
https://www.readbyqxmd.com/read/29133001/effects-of-low-bone-mineral-status-on-biomechanical-characteristics-in-idiopathic-scoliotic-spinal-deformity
#2
Xiao-Xing Song, Lin-Yu Jin, Xin-Feng Li, Lie Qian, Hong-Xing Shen, Zu-De Liu, Bu-Wei Yu
BACKGROUND: Low bone mass in adolescent idiopathic scoliosis patients has been well reported. Poor bone quality was regarded as a new and unique prognostic factor in aggravating the curve progression. However, the potential biomechanical correlation between them remains unclear. METHODS: Three-dimensional finite element models of idiopathic scoliotic spine with different bone mineral status were created for axial loading simulation. Axial load of three different body weights were applied on different bone mineral mass models...
November 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29127513/pentosidine-concentration-is-associated-with-degenerative-lumbar-scoliosis-in-older-women-preliminary-results
#3
Yawara Eguchi, Toru Toyoguchi, Kazuhide Inage, Kazuki Fujimoto, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Hirohito Kanamoto, Koki Abe, Masaki Norimoto, Tomotaka Umimura, Masao Koda, Takeo Furuya, Yasuchika Aoki, Kazuhisa Takahashi, Seiji Ohtori
PURPOSE: Advanced glycation end products (AGEs) have been implicated in the pathogenesis of sarcopenia. The objective of the study was to investigate the prevalence of sarcopenia in degenerative lumbar scoliosis (DLS), and the relationship between biochemical markers including major AGEs, pentosidine, and DLS in older women. METHODS: Our study participants were 20 elderly women with idiopathic DLS (mean age 76.4 years, range 56-88). Nineteen age- and sex-matched volunteers (mean age 74...
November 10, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29120963/high-dose-versus-low-dose-tranexamic-acid-to-reduce-transfusion-requirements-in-pediatric-scoliosis-surgery
#4
Daniel J Johnson, Christine C Johnson, Susan M Goobie, Nina Nami, Joshua A Wetzler, Paul D Sponseller, Steven M Frank
BACKGROUND: Our objective was to quantify blood loss and transfusion requirements for high-dose and low-dose tranexamic acid (TXA) dosing regimens in pediatric patients undergoing spinal fusion for correction of idiopathic scoliosis. Previous investigators have established the efficacy of TXA in pediatric scoliosis surgery; however, the dosing regimens vary widely and the optimal dose has not been established. METHODS: We retrospectively analyzed electronic medical records for 116 patients who underwent spinal fusion surgery for idiopathic scoliosis by a single surgeon and were treated with TXA...
December 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29107722/adolescent-idiopathic-scoliosis-surgery-by-a-neurosurgeon-learning-curve-for-neurosurgeons
#5
Seung-Jae Hyun, Sanghyun Han, Ki-Jeong Kim, Tae-Ahn Jahng, Yongjung J Kim, Seung-Chul Rhim, Hyun-Jib Kim
OBJECTIVE: To determine a neurosurgeon's learning curve of surgical treatment for adolescent idiopathic scoliosis (AIS) patients. METHODS: This study is a retrospective analysis. Forty-six patients were treated by a single neurosurgeon between 2011 and 2017 utilizing posterior segmental instrumentation and fusion. According to the time period, the former-and the latter 23 patients were divided into group 1 and group 2, respectively. Patients' demographic data, curve magnitude, number of levels treated, amount of correction achieved, radiographic/clinical outcomes and complications were compared between the groups...
October 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29102872/shoulder-balance-in-lenke-type-2-adolescent-idiopathic-scoliosis-should-we-fuse-to-the-second-thoracic-vertebra
#6
Huiliang Yang, Gi Hye Im, Bowen Hu, Lei Wang, Chunguang Zhou, Limin Liu, Yueming Song
OBJECTIVES: There are many different systems recommending upper instrumented vertebra (UIV) for Lenke type 2 adolescent idiopathic scoliosis (AIS), several of which suggest that all Lenke type 2 AIS patients should be fused to the second thoracic vertebra (T2). However, all previously proposed UIV selecting systems do not accurately predict postoperative shoulder balance. We investigated whether fusing to T2 could prevent postoperative shoulder imbalance and identified circumstances under which to fuse up to T2...
October 31, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29095406/genetic-variant-of-pax1-gene-is-functionally-associated-with-adolescent-idiopathic-scoliosis-in-the-chinese-population
#7
Leilei Xu, Fei Sheng, Chao Xia, Xiaodong Qin, Nelson Leung-Sang Tang, Yong Qiu, Jack Chun-Yiu Cheng, Zezhang Zhu
STUDY DESIGN: A genetic association study OBJECTIVES.: To investigate the association between PAX1 gene and the susceptibility of AIS in the Chinese population and to further determine the functional variant regulating PAX1 expression in patients with AIS. SUMMARY OF BACKGROUND DATA: In a previous study an enhancer locus of PAX1 was reported to be associated with the development of adolescent idiopathic scoliosis (AIS) in the Caucasian and the Japanese population...
October 31, 2017: Spine
https://www.readbyqxmd.com/read/29094108/curve-progression-after-long-term-brace-treatment-in-adolescent-idiopathic-scoliosis-comparative-results-between-over-and-under-30-cobb-degrees-sosort-2017-award-winner
#8
Angelo G Aulisa, Vincenzo Guzzanti, Francesco Falciglia, Marco Galli, Paolo Pizzetti, Lorenzo Aulisa
Background: The factors influencing curve behavior following bracing are incompletely understood and there is no agreement if scoliotic curves stop progressing with skeletal maturity. The aim of this study was to evaluate the loss of the scoliotic curve correction in patients treated with bracing during adolescence and to compare patient outcomes of under and over 30 Cobb degrees, 10 years after brace removal. Methods: We reviewed 93 (87 female) of 200 and nine patients with adolescent idiopathic scoliosis (AIS) who were treated with the Lyon or PASB brace at a mean of 15 years (range 10-35)...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/29093789/bone-mineral-density-and-physical-performance-of-female-patients-27-years-or-longer-after-surgery-for-adolescent-idiopathic-scoliosis
#9
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Takehide Katogi, Shohei Minami, Hisateru Niki, Yoshiaki Torii, Shigeta Morioka, Sumihisa Orita, Kazuhide Inage, Kazuki Fujimoto, Yasuhiro Shiga, Kazuhisa Takahashi, Seiji Ohtori
Study Design: Retrospective cohort study. Purpose: To assess bone mineral density (BMD) and bone metabolism ≥27 years after surgery in female patients who underwent spinal fusion for adolescent idiopathic scoliosis (AIS) during adolescence and to determine their associations with physical performance. Overview of Literature: There are no studies investigating postsurgical BMD in middle-aged AIS patients. Methods: This study included 23 patients who provided informed consent among 229 female patients with AIS who underwent spinal fusion from 1968 until 1988...
October 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29093788/normal-age-adjusted-sagittal-spinal-alignment-is-achieved-with-surgical-correction-in-adolescent-idiopathic-scoliosis
#10
Subaraman Ramchandran, Norah Foster, Akhila Sure, Thomas J Errico, Aaron J Buckland
Study Design: Retrospective analysis. Purpose: Our hypothesis is that the surgical correction of adolescent idiopathic scoliosis (AIS) maintains normal sagittal alignment as compared to age-matched normative adolescent population. Overview of Literature: Sagittal spino-pelvic alignment in AIS has been reported, however, whether corrective spinal fusion surgery re-establishes normal alignment remains unverified. Methods: Sagittal profiles and spino-pelvic parameters of thirty-eight postsurgical correction AIS patients ≤21 years old without prior fusion from a single institution database were compared to previously published normative age-matched data...
October 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29089528/postural-screening-for-adolescent-idiopathic-scoliosis-with-infrared-thermography
#11
Garcia Kwok, Joanne Yip, Kit-Lun Yick, Mei-Chun Cheung, Chi-Yung Tse, Sun-Pui Ng, Ameersing Luximon
Adolescent idiopathic scoliosis (AIS) is a multifactorial, three-dimensional deformity of the spine and trunk. School scoliosis screening (SSS) is recommended by researchers as a means of early detection of AIS to prevent its progression in school-aged children. The traditional screening technique for AIS is the forward bending test because it is simple, non-invasive and inexpensive. Other tests, such as the use of Moiré topography, have reduced the high false referral rates. The use of infrared (IR) thermography for screening purposes based on the findings of previous studies on the asymmetrical paraspinal muscle activity of scoliotic patients compared with non-scoliotic subjects was explored in this study...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29061600/global-research-trends-in-spinal-ultrasound-a-systematic-bibliometric-analysis
#12
Xiao Zhai, Jin Cui, Jie Shao, Qijin Wang, Xiao Chen, Xianzhao Wei, Xiaoyi Zhou, Ziqiang Chen, Yushu Bai, Ming Li
BACKGROUND: In recent years, there has been increased interest in the use of ultrasound technology in the evaluation of spinal and paraspinal regions. OBJECTIVE: This study aimed to investigate trends in spinal ultrasound research from 1994 to 2015 and compare the contributions of such research from different countries and authors. STUDY DESIGN: Bibliometric analysis. SETTING: Publications related to spinal ultrasound from 1994 to 2015 were retrieved from the Web of Science database...
October 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/29059123/implant-density-at-the-apex-is-more-important-than-overall-implant-density-for-3d-correction-in-thoracic-adolescent-idiopathic-scoliosis-using-rod-derotation-and-en-bloc-vertebral-derotation-technique
#13
Alexandre Delikaris, Xiaoyu Wang, Laure Boyer, A Noelle Larson, Charles G T Ledonio, Carl-Eric Aubin
STUDY DESIGN: Biomechanical analysis of 3D correction and bone-screw forces through numerical simulations of scoliosis instrumentation with different pedicle screw patterns. OBJECTIVE: To analyze the effect of different screw densities and distributions on 3D correction and bone-screw forces in adolescent idiopathic scoliosis (AIS) instrumentation. SUMMARY OF BACKGROUND DATA: Instrumentation constructs with various numbers of pedicle screws and patterns have been proposed for thoracic AIS instrumentation...
October 20, 2017: Spine
https://www.readbyqxmd.com/read/29058137/zonal-differences-in-risk-and-pattern-of-pedicle-screw-perforations-in-adolescent-idiopathic-scoliosis-ais-a-computerized-tomography-ct-review-of-1986-screws
#14
C Y W Chan, M K Kwan
PURPOSE: To evaluate the zonal differences in risk and pattern of pedicle screw perforations in adolescent idiopathic scoliosis (AIS) patients. METHODS: The scoliosis curves were divided into eight zones. CT scans were used to assess perforations: Grade 0, Grade 1(< 2 mm), Grade 2(2-4 mm) and Grade 3(> 4 mm). Anterior perforations were classified into Grade 0, Grade 1(< 4 mm), Grade 2(4-6 mm) and Grade 3(> 6 mm). Grade 2 and 3 (except lateral grade 2 and 3 perforation over thoracic vertebrae) were considered as 'critical perforations'...
October 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29056566/a-reliability-and-validity-study-for-different-coronal-angles-using-ultrasound-imaging-in-adolescent-idiopathic-scoliosis
#15
Rob C Brink, Sebastiaan P J Wijdicks, Isabel N Tromp, Tom P C Schlösser, Moyo C Kruyt, Frederik J A Beek, René M Castelein
BACKGROUND CONTEXT: Radiation exposure remains a big concern in adolescent idiopathic scoliosis (AIS). Ultrasound imaging of the spine could significantly reduce or possibly even eliminate this radiation hazard. The spinous processes (SP) and transverse processes (TP), were used to measure the coronal deformity. Both landmarks provided reliable information on the severity of the curve as related to the traditional Cobb angle. However, it remained unclear which coronal ultrasound angle is the most appropriate method to measure the curve severity...
October 19, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29052036/rapidly-increasing-incidence-in-scoliosis-surgery-over-14%C3%A2-years-in-a-nationwide-sample
#16
Johan von Heideken, Maura D Iversen, Paul Gerdhem
PURPOSE: Severe scoliosis is primarily managed with surgery. This cohort study describes the incidence of surgically treated scoliosis among Swedish youth and young adults, stratified by age, sex, scoliosis type, and surgical approach and identifies changes in incidence rate and hospital length of stay (LOS), infections requiring re-surgery and mortality within 90 days. METHODS: Swedish youth, 0-21 years, (n = 3062) with a diagnostic code for scoliosis and spine surgery between 2000 and 2013 were selected from the National Patient Register...
October 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29051921/effectiveness-of-schroth-exercises-during-bracing-in-adolescent-idiopathic-scoliosis-results-from-a-preliminary-study-sosort-award-2017-winner
#17
Kenny Yat Hong Kwan, Aldous C S Cheng, Hui Yu Koh, Alice Y Y Chiu, Kenneth Man Chee Cheung
BACKGROUND: Bracing has been shown to decrease significantly the progression of high-risk curves to the threshold for surgery in patients with adolescent idiopathic scoliosis (AIS), but the treatment failure rate remains high. There is evidence to suggest that Schroth scoliosis-specific exercises can slow progression in mild scoliosis. The aim of this study was to evaluate the efficacy of Schroth exercises in AIS patients with high-risk curves during bracing. METHODS: A prospective, historical cohort-matched study was carried out...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/29050721/acute-kidney-injury-secondary-to-cell-saver-in-posterior-spinal-fusion
#18
Anas A Minkara, Albert Y Lin, Michael G Vitale, David P Roye
BACKGROUND: Autologous blood transfusion, commonly referred to as cell saver, is frequently used in spinal fusion to salvage red blood cells because of the risk of significant intraoperative blood loss. This case report describes a case of acute kidney injury (AKI) secondary to cell saver use. Our objective is to increase the knowledge about the process of red blood cell salvage and this exceedingly rare complication. METHODS: Chart and renal biopsy results for a single case were reviewed and reported in this retrospective study...
November 2017: Spine Deformity
https://www.readbyqxmd.com/read/29050718/timing-of-changes-in-three-dimensional-spinal-parameters-after-selective-thoracic-fusion-in-lenke-1-adolescent-idiopathic-scoliosis-two-year-follow-up
#19
Saba Pasha, John M Flynn, Paul D Sponseller, Giuseppe Orlando, Peter O Newton, Patrick J Cahill
STUDY DESIGN: Retrospective analysis of the prospectively collected data. OBJECTIVE: To investigate the relationship between the axial rotation of the unfused lumbar spine and the parameters of the instrumented thoracic spine at varying time points after selective thoracic fusion (STF) in Lenke 1B and 1C adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: The impact of STF on the spontaneous lumbar curve correction in AIS has been studied mainly in the frontal planes...
November 2017: Spine Deformity
https://www.readbyqxmd.com/read/29050717/radiographic-and-functional-outcome-in-adolescent-idiopathic-scoliosis-operated-with-hook-hybrid-versus-all-pedicle-screw-instrumentation-a-retrospective-study-in-149-patients
#20
Søren Ohrt-Nissen, Dennis W Hallager, Ture Karbo, Martin Gehrchen, Benny Dahl
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To compare radiographic outcome and health-related quality of life in patients with adolescent idiopathic scoliosis (AIS) treated with hook/hybrid (H/H) or all-pedicle screw (PS) instrumentation. SUMMARY OF BACKGROUND DATA: PS instrumentation has largely replaced H/H in the surgical treatment of AIS but whether a normalized sagittal profile can be obtained with the PS construct is still debated...
November 2017: Spine Deformity
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