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Thoracic rotation

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https://www.readbyqxmd.com/read/28632551/comparative-study-of-c-arms-for-intraoperative-3-dimensional-imaging-and-navigation-in-minimally-invasive-spine-surgery-part-i-applicability-and-image-quality
#1
Jan-Helge Klingler, Ronen Sircar, Christian Scheiwe, Evangelos Kogias, Florian Volz, Marie T Krüger, Ulrich Hubbe
STUDY DESIGN: This was a retrospective analysis. OBJECTIVE: This study compares 2 different 3-dimensional (3D) C-arm devices for intraoperative imaging and navigation with regard to clinical applicability and image quality. SUMMARY OF BACKGROUND DATA: Minimally invasive spine surgery requires intraoperative imaging techniques to adequately visualize the unexposed spine. For this purpose, mobile 3D C-arms became available along with the evolution of intraoperative navigation techniques...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28624480/evaluation-of-thoracic-vertebrae-rotation-in-patients-with-pectus-excavatum
#2
Ryszard Tomaszewski, Łukasz Wiktor, Ludwina Machała
PURPOSE: The aim of our study was to evaluate thoracic vertebrae rotation in patients with pectus excavatum. Moreover, we wanted to assess the prevalence, the severity and relationship between pectus excavatum and adolescent idiopathic scoliosis (AIS). METHODS: We performed retrospective analysis of 82 preoperative chest CT in children with pectus excavatum performed between January 2008 and December 2011. For each patient Haller Index and Cobb angle was measured...
June 14, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28622931/three-dimensional-morphometrics-of-thoracic-vertebrae-in-neandertals-and-the-fossil-evidence-from-el-sidr%C3%A3-n-asturias-northern-spain
#3
Markus Bastir, Daniel García Martínez, Luis Rios, Antonio Higuero, Alon Barash, Sandra Martelli, Antonio García Tabernero, Almudena Estalrrich, Rosa Huguet, Marco de la Rasilla, Antonio Rosas
Well preserved thoracic vertebrae of Neandertals are rare. However, such fossils are important as their three-dimensional (3D) spatial configuration can contribute to the understanding of the size and shape of the thoracic spine and the entire thorax. This is because the vertebral body and transverse processes provide the articulation and attachment sites for the ribs. Dorsal orientation of the transverse processes relative to the vertebral body also rotates the attached ribs in a way that could affect thorax width...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28622899/a-novel-method-for-estimating-three-dimensional-apical-vertebral-rotation-using-two-dimensional-coronal-cobb-angle-and-thoracic-kyphosis
#4
T Barrett Sullivan, Tracey Bastrom, Fredrick Reighard, Megan Jeffords, Peter O Newton
STUDY DESIGN: Retrospective cohort analysis. OBJECTIVES: To use a large cohort of three-dimensional (3D) spinal reconstructions to create a simple mathematical formula capable of estimating 3D apical vertebral rotation (AVR) based on the correlation with routinely obtained two-dimensional (2D) measurements of scoliosis. SUMMARY OF BACKGROUND DATA: Quantification of vertebral rotation in AIS using 2-dimensional (2D) imaging is inherently challenging as the axial plane cannot be directly visualized...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28612190/correction-of-hypokyphosis-in-thoracic-adolescent-idiopathic-scoliosis-using-sublaminar-bands-a-3d-multicenter-study
#5
Brice Ilharreborde, Sébastien Pesenti, Emmanuelle Ferrero, Franck Accadbled, Jean-Luc Jouve, Jérôme Sales De Gauzy, Keyvan Mazda
INTRODUCTION: The comparison of implants and correction methods remain controversial in AIS. Excellent frontal and axial correction rates have been reported with all-screw constructs, but at the expense of sagittal alignment, which has a tendency to flatten postoperatively. Posteromedial translation using hybrid constructs seems to preserve and improve thoracic kyphosis (TK), but no series exist to date with a significant number of hypokyphotic patients. In addition, the measures of TK in 2D are often wrong in severe AIS due to axial rotation...
June 13, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28606593/sub-solid-nodule-detection-performance-on-reduced-dose-computed-tomography-with-iterative-reduction-comparison-between-20%C3%A2-ma-7%C3%A2-mas-and-120%C3%A2-ma-42%C3%A2-mas-regarding-nodular-size-and-characteristics-and-association-with-size-specific-dose-estimate
#6
Yukihiro Nagatani, Masashi Takahashi, Mitsuru Ikeda, Tsuneo Yamashiro, Hisanobu Koyama, Mitsuhiro Koyama, Hiroshi Moriya, Satoshi Noma, Noriyuki Tomiyama, Yoshiharu Ohno, Kiyoshi Murata, Sadayuki Murayama
RATIONALE AND OBJECTIVES: This study aimed to compare sub-solid nodule detection performances (SSNDP) on chest computed tomography (CT) with Adaptive Iterative Dose Reduction using Three Dimensional Processing (AIDR 3D) between 7 mAs (0.21 mSv) and 42 mAs (1.28 mSv) in total and in subgroups classified by nodular size, characteristics, and location, and analyze the association of SSNDP with size-specific dose estimate (SSDE). MATERIALS AND METHODS: As part of the Area-detector Computed Tomography for the Investigation of Thoracic Diseases Study, a Japanese multicenter research project, 68 subjects underwent chest CT with 120 kV, 0...
June 9, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28603378/application-of-extracorporeal-shockwaves-in-the-treatment-of-scoliosis-a-case-report
#7
Hans-Rudolf Weiss
[Purpose] In a pilot investigation, extracorporeal shockwave therapy was applied to patients with idiopathic scoliosis. This case report aimed to describe the effects of repeated extracorporeal shockwave therapy on the clinical signs of a patient with scoliosis due to a functional tethered cord syndrome. [Subject and Methods] In June 2016, a 13-year-old girl presented with a left thoracic curvature. Radiograph showed a left thoracic curve of 24°. An angle of trunk rotation of 21° was measured using a scoliometer...
May 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28593385/tailor-made-management-of-thoracic-scoliosis-with-cervical-hyperextension-in-muscular-dystrophy
#8
A Angelliaume, L Harper, A Lalioui, A Delgove, Y Lefèvre
PURPOSE: We report the case of a 13-year-old boy managed for fixed cervical hyperextension due to congenital muscular dystrophy with partial merosin deficiency. He presented a right decompensated thoracic scoliosis (T6-L1 Cobb angle 72°) associated with cervical and lumbar lordosis. The spinal extension was accompanied by major flexion of the hip resulting in the trunk being bent forward. This posture caused daily severe back pain responsible for significant loss of quality of life. This led to the decision to perform surgery...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28590384/thoracic-idiopathic-scoliosis-severity-is-highly-correlated-with-3d-measures-of-thoracic-kyphosis
#9
T Barrett Sullivan, Fredrick G Reighard, Emily J Osborn, Kevin C Parvaresh, Peter O Newton
BACKGROUND: Loss of thoracic kyphosis has been associated with thoracic idiopathic scoliosis. Modern 3-dimensional (3D) imaging systems allow more accurate characterization of the scoliotic deformity than traditional radiographs. In this study, we utilized 3D calculations to characterize the association between increasing scoliosis severity and changes in the sagittal and axial planes. METHODS: Patients evaluated in a scoliosis clinic and determined to have either a normal spine or idiopathic scoliosis were included in the analysis...
June 7, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28583488/non-invasive-methods-to-maintain-cervical-spine-position-after-pediatric-tracheal-resections
#10
Kahren K Aydinyan, Jonathan D Day, Gina M Troiano, G Paul Digoy
OBJECTIVES: To present our experience with two methods of neck stabilization after pediatric tracheal resection with primary anastomosis as possible alternatives to the traditional chest-chin suture. METHODS: Children undergoing tracheal resection and/or cricotracheal resection with anastomosis under tension were placed in cervical spine flexion postoperatively with either a chest-chin (Grillo) suture, an Aspen cervical collar or Trulife Johnson cervical-thoracic orthosis (CTO)...
July 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28570671/the-rib-cage-stabilizes-the-human-thoracic-spine-an-in-vitro-study-using-stepwise-reduction-of-rib-cage-structures
#11
Christian Liebsch, Nicolas Graf, Konrad Appelt, Hans-Joachim Wilke
The stabilizing effect of the rib cage on the human thoracic spine is still not sufficiently analyzed. For a better understanding of this effect as well as the calibration and validation of numerical models of the thoracic spine, experimental biomechanics data is required. This study aimed to determine (1) the stabilizing effect of the single rib cage structures on the human thoracic spine as well as the effect of the rib cage on (2) the flexibility of the single motion segments and (3) coupled motion behavior of the thoracic spine...
2017: PloS One
https://www.readbyqxmd.com/read/28562557/correlation-between-respiratory-function-and-spine-and-thorax-deformity-in-children-with-mild-scoliosis
#12
Andrzej Szopa, Małgorzata Domagalska-Szopa
Idiopathic scoliosis (IS) is the most common 3-dimensional deformation abnormality of the spine with direct effects on the thoracic cage and can potentially affect respiratory function.The purpose of the present study was to recognize whether the 3-dimensional displacement of the spine and trunk as a consequence of IS directly influences and diminishes respiratory function in children with mild IS.The study involved 68 children aged 10 to 12 years with mild thoracic or thoracolumbar IS who were the outpatients of the local Center for Corrective Gymnastics...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28555312/long-fusions-to-s1-with-or-without-pelvic-fixation-can-induce-relevant-acute-variations-in-pelvic-incidence-a-retrospective-cohort-study-of-adult-spine-deformity-surgery
#13
Riccardo Cecchinato, Andrea Redaelli, Carlotta Martini, Carlotta Morselli, Jorge Hugo Villafañe, Claudio Lamartina, Pedro Berjano
PURPOSE: The purpose of this study is to verify if any changes occur in pelvic incidence (PI) in adult patients undergoing long fusion to sacrum for spine deformity and to describe the effect of fixation to pelvis on these variations. METHODS: We conducted a cross sectional study. Sixty-six adults patients, 87% females (mean ± SD age: 65.1 ± 7.6 years), undergoing fusion from the thoracic spine to the sacrum for adult spine deformity were included. Patients were divided in two different groups: Group A: sacral fixation alone and Group B: sacral fixation plus pelvis fixation...
May 29, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28552154/spinal-cavernous-malformations
#14
Aaron J Clark, Doris D Wang, Michael T Lawton
Spinal cavernous malformations are rare intramedullary vascular lesions of the central nervous system. Most are located in the thoracic spine. Patients present with either acute neurologic deficit or gradual deterioration. Weakness is the most common presenting symptom. The annual hemorrhage risk is 2.1%. Diagnosis is made by magnetic resonance imaging as these lesions are occult on angiography. Surgical removal is indicated in patients with hemorrhage and neurologic deficit. All lesions are approached posteriorly by laminectomy...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28551465/spinal-fusion-limits-upper-body-range-of-motion-during-gait-without-inducing-compensatory-mechanisms-in-adolescent-idiopathic-scoliosis-patients
#15
R M Holewijn, I Kingma, M de Kleuver, J J P Schimmel, N L W Keijsers
INTRODUCTION: Previous studies show a limited alteration of gait at normal walking speed after spinal fusion surgery for adolescent idiopathic scoliosis (AIS), despite the presumed essential role of spinal mobility during gait. This study analyses how spinal fusion affects gait at more challenging walking speeds. More specifically, we investigated whether thoracic-pelvic rotations are reduced to a larger extent at higher gait speeds and whether compensatory mechanisms above and below the stiffened spine are present...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28548698/novel-porcine-experimental-model-of-severe-progressive-thoracic-scoliosis-with-compensatory-curves-induced-by-interpedicular-bent-rigid-temporary-tethering
#16
Carlos Barrios, José Miguel Lloris, Juan Alonso, Borja Maruenda, Jesús Burgos, Rafael Llombart-Blanco, Luis Gil, Viviana Bisbal
Using flexible tethering techniques, porcine models of experimental scoliosis have shown scoliotic curves with vertebral wedging but very limited axial rotation. The aim of this experimental work was to induce a severe progressive scoliosis in a growing porcine model for research purposes. A unilateral spinal bent rigid tether was anchored to two ipsilateral pedicle screws in eight pigs. The spinal tether was removed after 8 weeks. Ten weeks later, the animals were sacrificed. Conventional radiographs and 3D CT-scans were taken to evaluate changes in the alignment of the thoracic spine...
May 26, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28547576/thoraco-lumbar-selective-fusion-in-adolescent-idiopathic-scoliosis-with-lenke-c-modifier-curves-clinical-and-radiographic-analysis-at-10-year-follow-up
#17
Laura Scaramuzzo, Fabrizio Giudici, Daniele Bongetta, Eleonora Caboni, Leone Minoia, Antonino Zagra
PURPOSE: To examine the radiological and clinical outcomes of a single-center case series of selective thoracic fusions (STF) in adolescent idiopathic scoliosis with Lenke C modifier curves, with a long-term follow-up. METHODS: We evaluated at 6 months and 10 years different radiological parameters on both thoracic and lumbar districts: coronal curves, sagittal curves, apical vertebral translation (AVT), and apical vertebral rotation (AVR). The clinical outcome was determined using the SRS 22 score...
May 25, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28520819/in-vitro-analysis-of-the-segmental-flexibility-of-the-thoracic-spine
#18
Hans-Joachim Wilke, Andrea Herkommer, Karin Werner, Christian Liebsch
Basic knowledge about the thoracic spinal flexibility is limited and to the authors' knowledge, no in vitro studies have examined the flexibility of every thoracic spinal segment under standardized experimental conditions using pure moments. In our in vitro study, 68 human thoracic functional spinal units including the costovertebral joints (at least n = 6 functional spinal units per segment from T1-T2 to T11-T12) were loaded with pure moments of ±7.5 Nm in flexion/extension, lateral bending, and axial rotation in a custom-built spine tester to analyze range of motion (ROM) and neutral zone (NZ)...
2017: PloS One
https://www.readbyqxmd.com/read/28515758/medical-robots-in-cardiac-surgery-application-and-perspectives
#19
Karolina Kroczek, Piotr Kroczek, Zbigniew Nawrat
Medical robots offer new standards and opportunities for treatment. This paper presents a review of the literature and market information on the current situation and future perspectives for the applications of robots in cardiac surgery. Currently in the United States, only 10% of thoracic surgical procedures are conducted using robots, while globally this value remains below 1%. Cardiac and thoracic surgeons use robotic surgical systems increasingly often. The goal is to perform more than one hundred thousand minimally invasive robotic surgical procedures every year...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28491215/clinical-outcomes-of-posterior-spinal-stabilization-with-rigid-vertical-strut-and-spinal-process-wires-the-adeolu-s-technique-in-a-developing-country
#20
Taopheeq Bamidele Rabiu
INTRODUCTION: Conventional instrumentation for spinal stabilization is beyond the reach of many patients in developing countries. A low-cost and easily-available method of spinal stabilization using vertical struts and spinal process wires (Adeolu's technique) was recently introduced in Nigeria. We describe the clinical outcomes of a prospective series of patients managed using the technique. METHODS: From 2011 to 2012, we performed posterior spinal stabilization in eighteen patients using the technique...
2017: Pan African Medical Journal
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