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Spine scoliosis surgery

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https://www.readbyqxmd.com/read/29325333/-biomechanical-effects-on-adjacent-segments-of-different-growing-rod-fixation-in-early-onset-scoliosis
#1
Y Hai, A X Pan, Y G Li, L Zang, S Yuan
Objective: To analyse the biomechanical effects on adjacent segments of different growing-rod (GR) fixation in early onset scoliosis through a finite element analysis method. Methods: A severe early-onset scoliosis patient was selected and the pre-operation and post-GR-operation (Upper instrumented levels: T(4), T(5). Lower instrumented levels: L(3), L(4)) whole spine 3-dimentional CT scan data were collected to build the finite models. Based on the different models, biomechanical differences on adjacent segments were analysed...
December 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29319661/observed-length-increases-of-magnetically-controlled-growing-rods-are-lower-than-programmed
#2
Sarah E Gilday, Mark S Schwartz, Donita I Bylski-Austrow, David L Glos, Lindsay Schultz, Sara O'Hara, Viral V Jain, Peter F Sturm
BACKGROUND: Magnetically controlled growing rods (MCGRs) are increasingly used in the treatment of early onset scoliosis (EOS). Few studies have reported whether desired lengthening can reliably be achieved, or if prior spine instrumentation and large tissue depths affect lengthening. In this clinical study of EOS patients, it was hypothesized that increases in rod length would equal programmed increases, patients with prior spine instrumentation would lengthen less than patients without prior surgery, and larger tissue depths would decrease lengthening success...
January 9, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29318284/screening-for-adolescent-idiopathic-scoliosis-us-preventive-services-task-force-recommendation-statement
#3
David C Grossman, Susan J Curry, Douglas K Owens, Michael J Barry, Karina W Davidson, Chyke A Doubeni, John W Epling, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, Maureen G Phipps, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: Adolescent idiopathic scoliosis, a lateral curvature of the spine of unknown cause with a Cobb angle of at least 10°, occurs in children and adolescents aged 10 to 18 years. Idiopathic scoliosis is the most common form and usually worsens during adolescence before skeletal maturity. Severe spinal curvature may be associated with adverse long-term health outcomes (eg, pulmonary disorders, disability, back pain, psychological effects, cosmetic issues, and reduced quality of life)...
January 9, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29317368/interdisciplinary-care-model-independently-decreases-use-of-critical-care-services-after-corrective-surgery-for-adult-degenerative-scoliosis
#4
Owoicho Adogwa, Aladine A Elsamadicy, Amanda R Sergesketter, Michael Ongele, Victoria Vuong, Syed Khalid, Jessica Moreno, Joseph Cheng, Isaac O Karikari, Carlos A Bagley
OBJECTIVE: Interdisciplinary management of elderly patients requiring spine surgery has been shown to improve short and long-term outcomes. The aim of this study is to determine whether an interdisciplinary team approach mitigates use of intensive care unit (ICU) resources. METHODS: A unique co-management model for elderly patients undergoing lumbar fusion surgery was implemented at a major academic medical center. The Peri-operative Optimization of Senior Health Program(POSH) was launched with the aim of improving outcomes in elderly patients(>65-years-old) undergoing complex lumbar spine surgery...
January 6, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29315128/parallel-proximal-fixation-in-rib-based-growing-rod-system-a-novel-approach-to-deal-with-proximal-anchor-migration
#5
John Heflin, Michelle Welborn, Norman Ramirez-Lluch, Ivan Iriarte, Ron El-Hawary, Graham T Fedorak, John T Smith
STUDY DESIGN: Retrospective case control OBJECTIVE.: To report on differences in implant failure rates and complications requiring reoperation in children with early-onset scoliosis (EOS) treated with rib-based distraction utilizing four proximal fixation points in either a parallel or in-line configuration. SUMMARY OF BACKGROUND DATA: Proximal anchor failure continues to be a significant problem in growth-friendly surgery using rib-based distraction to treat children with EOS...
January 8, 2018: Spine
https://www.readbyqxmd.com/read/29315120/ethnic-variations-in-radiographic-parameters-and-srs-22-scores-in-adult-spinal-deformity-a-comparison-between-north-american-and-japanese-patients-above-50-years-of-age-with-minimum-2-year-follow-up
#6
Naobumi Hosogane, Christopher Ames, Morio Matsumoto, Mitsuru Yagi, Yukihiro Matsuyama, Hiroshi Taneichi, Yu Yamato, Daisaku Takeuchi, Frank Schwab, Christopher Shaffrey, Justin S Smith, Shay Bess, Virginie Lafage
STUDY DESIGN: Retrospective review of North American and Japanese adult spinal deformity (ASD) database. OBJECTIVE: To investigate the ethnical differences in radiographic parameters and Scoliosis Research Society (SRS)-22 between North American and Japanese ASD. SUMMARY OF BACKGROUND DATA: Previous comparison study between North American and Japanese ASD patients has revealed Japanese patients had marked pelvic tilt deformity and had lower Oswestry Disability Index scores corresponding to established thresholds of radiographic deformity...
January 8, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29310355/revision-surgery-for-lumbar-hemivertebra-in-a-7-year-old-child-with-10-year-follow-up-a-case-report-a-care-compliant-article
#7
Xuhong Xue, Sheng Zhao
RATIONALE: Hemivertebrae, which are the most frequent cause of congenital scoliosis, pose a challenge in terms of prognosis and therapy. The current gold standard treatment congenital scoliosis due to a lumbar and thoracic hemivertebra would be hemivertebra resection and short level posterior spinal fusion. Paucity literatures are reported for the treatment of hemivertebra by convex fusion with posterior hemivertebra excision. PATIENT CONCERNS: The patient was first noticed to have a spinal problem at 7 years of age...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29295647/prophylactic-riluzole-attenuates-oxidative-stress-damage-in-spinal-cord-distraction
#8
Eileen Nicole Shimizu, Jennifer L Seifert, Kevin J Johnson, Mario Romero-Ortega
Spinal cord injury (SCI) without radiographic abnormalities (SCIWORA) presents a significant challenge due the loss of function despite an apparent normal anatomy. The cause of dysfunction is not understood and specific treatment options are lacking. Some scoliosis corrective surgeries result in SCIWORA, where stretching of the spinal cord can lead to vascular compromise and hypoxia. This procedure allows for the implantation of neuroprotective strategies designed to prevent iatrogenic SCI. We utilized a model of atraumatic SCI to evaluate the efficacy of the sodium channel blocker Riluzole, as a prophylactic neuroprotectant...
January 2, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29287822/srs-22r-minimum-clinically-important-difference-and-substantial-clinical-benefit-after-adult-lumbar-scoliosis-surgery
#9
Leah Y Carreon, Michael P Kelly, Charles H Crawford, Christine R Baldus, Steven D Glassman, Christopher I Shaffrey, Keith H Bridwell
STUDY DESIGN: Longitudinal cohort. OBJECTIVES: To determine if the minimum clinically important difference (MCID) and substantial clinical benefit (SCB) thresholds for the Scoliosis Research Society-22R (SRS22R) domains in patients with degenerative lumbar scoliosis are similar to those in patients with adult spinal deformity (ASD) with fusions extending into the thoracic spine. SUMMARY OF BACKGROUND DATA: The MCID and SCB thresholds for the SRS22R domains in patients with ASD and adolescent idiopathic scoliosis have been reported...
January 2018: Spine Deformity
https://www.readbyqxmd.com/read/29287816/comparison-of-percentile-weight-gain-of-growth-friendly-constructs-in-early-onset-scoliosis
#10
Liam R Harris, Lindsay M Andras, Paul D Sponseller, Charles E Johnston, John B Emans, David L Skaggs
STUDY DESIGN: Multicenter retrospective cohort. OBJECTIVE: To compare improvement in nutritional status seen in early-onset scoliosis (EOS) patients following treatment with various growth-friendly techniques, especially in underweight patients (<20th weight percentile). BACKGROUND: Thoracic insufficiency resulting from EOS can lead to severe cardiopulmonary disease. In this age group, pulmonary function tests are often difficult or impossible to perform...
January 2018: Spine Deformity
https://www.readbyqxmd.com/read/29281150/to-distinguish-flexible-and-rigid-lumbar-curve-from-mri-texture-analysis-in-adolescent-idiopathic-scoliosis-a-feasibility-study
#11
Claudia Chevrefils, Delphine Périé, Stefan Parent, Farida Cheriet
BACKGROUND: Imaging in side bending, supine, traction, fulcrum, and push prone are examples of methods used to evaluate the curve reduction of scoliotic spine. However, being able to determine spine curve flexibility from MRI would eliminate the need of additional X-ray radiation related to radiograph acquisition in side-bending. PURPOSE/HYPOTHESIS: To find specific texture features of lumbar postural muscles on MRI that can distinguish flexible from rigid lumbar scoliotic curves...
December 27, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29279757/safety-of-pedicle-screws-in-adolescent-idiopathic-scoliosis-surgery
#12
REVIEW
Chris Yin Wei Chan, Mun Keong Kwan
To review existing publications on the safety of pedicle screw insertions in adolescent idiopathic scoliosis (AIS). Despite having increased risk for neurological and visceral injuries, the use of pedicle screws have led to increased correction rates in scoliosis surgery. A review was performed on topics pertinent to pedicle screw insertion in AIS, which included pedicle morphometry in AIS, structures at risk during pedicle screw insertion, and accuracy and safety of various pedicle screw insertion techniques...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29249551/validation-of-a-clinical-prediction-model-for-the-development-of-neuromuscular-scoliosis-a-multinational-study
#13
Carlo M Bertoncelli, Domenico Bertoncelli, Leonard Elbaum, Michal Latalski, Paola Altamura, Charles Musoff, Virginie Rampal, Federico Solla
BACKGROUND: The objective of this study was to evaluate the performance of a clinical prediction model of neuromuscular scoliosis via external validation. METHODS: We analyzed a series of 120 patients (mean age ± standard deviation, 15.7 ± 1.8 years; range: 12 to 18 years) with cerebral palsy, severe motor disorders, and cognitive impairment with and without neuromuscular scoliosis treated in two specialized units (70 patients from Nice, France, and 50 patients from Lublin, Poland) in a cross-sectional, double-blind study...
November 20, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/29245239/predictors-of-ultimate-postoperative-cervical-sagittal-alignment-in-main-thoracic-adolescent-idiopathic-scoliosis-a-long-term-follow-up-study
#14
Zhen Zhang, Zhen Liu, Zezhang Zhu, Yong Qiu
This is a retrospective study. The aim of this study was to access sagittal compensatory mechanism of the cervical spine in thoracic adolescent idiopathic scoliosis (T-AIS) before and after posterior spinal fusion and to identify preoperative or immediate postoperative radiographic parameters that can predict the ultimate cervical sagittal alignment (CSA) after long-term follow-up.A retrospective study was performed on 44 T-AIS patients treated with posterior spinal fusion and with at least 5 years of follow-up...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29244696/selective-spinal-fusion-for-neuromuscular-scoliosis-in-a-patient-with-pompe-disease-a-case-report-and-review-of-the-literature
#15
Atsushi Tanida, Shinji Tanishima, Tokumitsu Mihara, Aya Narita, Yoshihiro Maegaki, Hideki Nagashima
CASE: A 16-year-old girl with Pompe disease underwent surgery for scoliosis. She had been able to walk without any assistance, and kept her balance by swinging her waist. Therefore, we performed posterior selective spinal correction and fusion to avoid any adverse effects on walking ability that could occur with immobilization of the lumbosacral spine. After surgery, she was highly satisfied with her ability to perform the activities of daily living. CONCLUSION: For nonambulatory patients with scoliosis and Pompe disease, long fusion from the upper thoracic spine to the pelvis is generally required...
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29227788/posterior-only-surgical-correction-of-adolescent-idiopathic-scoliosis-an-egyptian-experience
#16
Belal Elnady, Mohammad M El-Sharkawi, Mohamed El-Meshtawy, Faisal F Adam, Galal Zaki Said
INTRODUCTION: The aim of this prospective case series study is to document safety and effectiveness of high density pedicle screws through posterior only approach with intraoperative wake-up test in correction of adolescent idiopathic scoliosis (AIS). METHODS: Between 2011 and 2015, all surgically treated patients for AIS were followed up for a minimum of 2 years. Clinical outcomes were evaluated using scoliosis research society-22 (SRS) questionnaire. All patients were classified according to Lenke classification...
2017: SICOT-J
https://www.readbyqxmd.com/read/29219781/a-novel-duraplasty-technique-following-fenestration-of-a-massive-lumbar-arachnoid-cyst-in-a-patient-with-scoliosis-technical-case-report
#17
Matthew T Neal, Randall J Hlubek, Alexander E Ropper, U Kumar Kakarla
When a dural defect is encountered during spine surgery, the dura mater must be reconstituted to minimize the occurrence of minor or major life-threatening sequelae. The neurosurgical literature lacks strategies for managing large dural defects encountered during surgery. The authors describe a 24-year-old man who developed cauda equina syndrome secondary to altered CSF flow in a large thoracolumbar arachnoid cyst. Surgical decompression and fenestration of the arachnoid cyst were performed, and the large dural defect was treated using a multilayer closure with collagen matrix, titanium mesh, and methylmethacrylate...
December 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29218483/asymmetrical-trunk-movement-during-walking-improved-to-normal-range-at-3%C3%A2-months-after-corrective-posterior-spinal-fusion-in-adolescent-idiopathic-scoliosis
#18
Daniel A C F Wong-Chung, Janneke J P Schimmel, Marinus de Kleuver, Noël L W Keijsers
PURPOSE: To investigate the effects of posterior spinal fusion (PSF) and curve type on upper body movements in Adolescent Idiopathic Scoliosis (AIS) patients during gait. METHODS: Twenty-four girls (12-18 years) with AIS underwent PSF. 3D-Gait-analyses were performed preoperatively, at 3 months and 1 year postoperatively. Mean position (0° represents symmetry) and range of motion (ROM) of the trunk (thorax-relative-to-pelvis) in all planes were assessed. Lower body kinematics and spatiotemporal parameters were also evaluated...
December 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29202838/development-of-a-saw-bones-model-for-training-pedicle-screw-placement-in-scoliosis
#19
Gregory Tanner, Saman Vojdani, David E Komatsu, James M Barsi
OBJECTIVE: The purpose of this study was to determine if a Sawbones Scoliosis Model could be used as a simulator to train residents in placing pedicle screws-a complex procedure with a steep learning curve. Surgical simulation, a common tool teaching residents complex procedures in a safe environment, was staged using a Sawbones Scoliosis Model. Ten junior and ten senior residents out of 25 total possible residents (80%) were instructed how to place pedicle screws using the free-hand technique...
December 4, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29200491/metallosis-a-complication-in-the-guided-growing-rod-system-used-in-treatment-of-scoliosis
#20
Jae Hyuk Yang, Chang Hwa Ham, Yeok Gu Hwang, Seung Woo Suh
Soft tissue reaction following metallic debris formation with the use of guided growing rod system has not been previously reported in human. The purpose of this study is to report complications caused by metallosis in a guided growing rod system. A 9-year-old female patient, who underwent treatment for the progressive idiopathic scoliosis (with Cobb's angle of 71°) with the guided growing rod system. Her Cobb's angle was corrected to 13° with the index surgery. During the 5 years postoperative period, she manifested recurrent episodes of skin irritation and progressive worsening of lateral curvature of the spine to an angle of 57°...
November 2017: Indian Journal of Orthopaedics
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