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Computed tomography, Scoliosis,

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https://www.readbyqxmd.com/read/29730723/characteristic-morphological-patterns-within-adolescent-idiopathic-scoliosis-may-be-explained-by-mechanical-loading
#1
Benedikt Schlager, Florian Krump, Julius Boettinger, Frank Niemeyer, Michael Ruf, Sebastian Kleiner, Meinrad Beer, Hans-Joachim Wilke
PURPOSE: Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine which exhibits morphological changes during growth. The goal of this study was to identify morphological patterns that could be explained by different loading patterns for AIS. METHODS: Computed tomography data of 21 patients with diagnosed AIS and 48 patients without any visual spinal abnormalities were collected prospectively. The bony structures were reconstructed, and landmarks were placed on characteristic morphological points on the spine...
May 5, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29580292/hermansky-pudlak-syndrome-type-2-manifests-with-fibrosing-lung-disease-early-in-childhood
#2
Meike Hengst, Lutz Naehrlich, Poornima Mahavadi, Joerg Grosse-Onnebrink, Suzanne Terheggen-Lagro, Lars Høsøien Skanke, Luise A Schuch, Frank Brasch, Andreas Guenther, Simone Reu, Julia Ley-Zaporozhan, Matthias Griese
BACKGROUND: Hermansky-Pudlak syndrome (HPS), a hereditary multisystem disorder with oculocutaneous albinism, may be caused by mutations in one of at least 10 separate genes. The HPS-2 subtype is distinguished by the presence of neutropenia and knowledge of its pulmonary phenotype in children is scarce. METHODS: Six children with genetically proven HPS-2 presented to the chILD-EU register between 2009 and 2017; the data were collected systematically and imaging studies were scored blinded...
March 27, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29526068/comparison-of-morphological-characteristics-of-the-subaxial-cervical-spine-between-athetoid-cerebral-palsy-and-normal-control
#3
Jun Young Kim, Jae Yeol Kwon, Moon Seok Kim, Jeong Jae Lee, Il Sup Kim, Jae Taek Hong
OBJECTIVE: To compare the morphometry of subaxial cervical spine between cerebral palsy (CP) and normal control. METHODS: We retrospectively analyzed 72 patients with CP, as well as 72 patients from normal population. The two groups were matched for age, sex, and body mass index. Pedicle, lateral mass (LM), and vertebral foramen were evaluated using computed tomography (CT) imaging. Pedicle diameter, LM height, thickness, width and vertebral foramen asymmetry (VFA) were measured and compared between the two groups...
March 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29494458/influence-of-derotation-connectors-on-3d-surgical-correction-of-adolescent-idiopathic-scoliosis
#4
Jérémy Allia, Jean-Luc Clément, Virginie Rampal, Béatrice Leloutre, Olivier Rosello, Federico Solla
STUDY DESIGN: Monocentric study comparing results of simultaneous translation on 2 rods (ST2R) with derotation connectors (prospective series) or without derotation connectors (retrospective series) in Adolescent Idiopathic Scoliosis (AIS) surgery. OBJECTIVE: The objective of this study was to assess if derotation connectors influence axial, coronal, and sagittal results in AIS surgery. SUMMARY OF BACKGROUND DATA: Conventional reduction techniques remain limited in their ability to reduce axial torsion...
April 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29462037/the-free-hand-technique-for-s2-alar-iliac-screw-placement-a-safe-and-effective-method-for-sacropelvic-fixation-in-adult-spinal-deformity
#5
Jamal N Shillingford, Joseph L Laratta, Lee A Tan, Nana O Sarpong, James D Lin, Charla R Fischer, Ronald A Lehman, Yongjung J Kim, Lawrence G Lenke
BACKGROUND: Spinopelvic fixation is an integral part of achieving solid fusion across the lumbosacral junction, especially in deformity procedures requiring substantial correction or long-segment constructs. Traditional S2-alar-iliac (S2AI) screw-placement techniques utilize fluoroscopy, increasing operative time and radiation exposure to the patient and surgeon. We describe a novel free-hand technique for S2AI screw placement in patients with adult spinal deformity. METHODS: We reviewed the records of 45 consecutive patients who underwent spinopelvic fixation performed with use of S2AI screws by the senior surgeon and various fellows or residents over a 12-month period (2015 to 2016)...
February 21, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29413732/vertebral-axial-asymmetry-in-adolescent-idiopathic-scoliosis
#6
Ludvig Vavruch, Daniel Forsberg, Nils Dahlström, Hans Tropp
STUDY DESIGN: Retrospective study. OBJECTIVES: To investigate parameters of axial vertebral deformation in patients with scoliosis compared to a control group, and to determine whether these parameters correlated with the severity of spine curvature, measured as the Cobb angle. SUMMARY OF BACKGROUND DATA: Adolescent idiopathic scoliosis (AIS) is the most common type of spinal deformity. Many studies have investigated vertebral deformation, in terms of wedging and pedicle deformations, but few studies have investigated actual structural changes within vertebrae...
March 2018: Spine Deformity
https://www.readbyqxmd.com/read/29312774/marfan-syndrome-with-pneumothorax-case-report-and-review-of-literatures
#7
Weiming Hao, Yong Fang, Hao Lai, Yaxing Shen, Hao Wang, Miao Lin, Lijie Tan
Marfan syndrome is a multisystem connective tissue disorder of autosomal dominant inheritance, which typically involves manifestations of the cardiovascular, skeletal, and ocular systems. Pulmonary involvement occurs less frequently. We report a case of a 28-year-old woman suffering from hours of sudden onset, progressive shortness of breath and right-sided chest pain. On physical examination, she presented decreased breath sound on the right side of chest, together with severe scoliosis and marfanoid habitus...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29306231/the-efficacy-of-in-situ-local-autograft-in-adolescent-idiopathic-scoliosis-surgery-a-comparison-of-three-different-grafting-methods
#8
Metin Işık, Hacı Mustafa Özdemir, Abdurrahman Sakaoğulları, Bertan Cengiz, Nevres Hürriyet Aydoğan
Background/aim: This study was performed to show the efficacy of in situ local autograft with a comparison of in situ local autograft, local autograft with allograft, and local autograft with posterior iliac crest autograft.Materials and methods: In this prospective randomized study, a total of 65 adolescent idiopathic scoliosis (AIS) patients were separated into 3 groups: Group 1 using local autograft and allograft, Group 2 using local autograft only, and Group 3 using local autograft and posterior iliac crest autograft...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29304802/evaluation-of-the-influence-of-kyphosis-and-scoliosis-on-intervertebral-disc-extrusion-in-french-bulldogs
#9
Maria Claudia C M Inglez de Souza, Richard Ryan, Gert Ter Haar, Rowena M A Packer, Holger A Volk, Steven De Decker
BACKGROUND: Although thoracic vertebral malformations with kyphosis and scoliosis are often considered incidental findings on diagnostic imaging studies of screw-tailed brachycephalic breeds, they have been suggested to interfere with spinal biomechanics and intervertebral disc degeneration. It is however unknown if an abnormal spinal curvature also predisposes dogs to develop clinically relevant intervertebral disc herniations. The aim of this study was to evaluate if the occurrence of thoracic vertebral malformations, kyphosis or scoliosis would be associated with a higher prevalence of cervical or thoracolumbar intervertebral disc extrusion in French bulldogs...
January 5, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29301172/myelography-in-the-assessment-of-degenerative-lumbar-scoliosis-and-its-influence-on-surgical-management
#10
George McKay, Peter Alexander Torrie, Wendy Bertram, Priyan Landham, Stephen Morris, John Hutchinson, Roland Watura, Ian Harding
OBJECTIVE: Myelography has been shown to highlight foraminal and lateral recess stenosis more readily than computed tomography (CT) or magnetic resonance imaging (MRI). It also has the advantage of providing dynamic assessment of stenosis in the loaded spine. The advent of weight-bearing MRI may go some way towards improving assessment of the loaded spine and is less invasive, however availability remains limited. This study evaluates the potential role of myelography and its impact upon surgical decision making...
December 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/29279757/safety-of-pedicle-screws-in-adolescent-idiopathic-scoliosis-surgery
#11
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/29137676/a-medium-invasiveness-multi-level-patient-s-specific-template-for-pedicle-screw-placement-in-the-scoliosis-surgery
#12
Farhad Azimifar, Kamran Hassani, Amir Hossein Saveh, Farhad Tabatabai Ghomsheh
BACKGROUND: Several methods including free-hand technique, fluoroscopic guidance, image-guided navigation, computer-assisted surgery system, robotic platform and patient's specific templates are being used for pedicle screw placement. These methods have screw misplacements and are not always easy to be applied. Furthermore, it is necessary to expose completely a large portions of the spine in order to access fit entirely around the vertebrae. METHODS: In this study, a multi-level patient's specific template with medium invasiveness was proposed for pedicle screw placement in the scoliosis surgery...
November 14, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29065043/defining-and-correcting-asymmetry-in-isolated-unilateral-frontosphenoidal-synostosis-differences-in-orbital-shape-facial-scoliosis-and-skullbase-twist-compared-to-unilateral-coronal-synostosis
#13
Gerhard S Mundinger, Rachel Skladman, Tara Wenger, Craig C Birgfeld, Joseph S Gruss, Amy Lee, Richard Ellenbogen, Richard A Hopper
INTRODUCTION: Isolated frontosphenoidal synostosis (FS) is a rare cause of fronto-orbital plagiocephaly that can be challenging to distinguish from isolated unicoronal synostosis (UC). The purpose of this paper is to analyze differences in fronto-orbital dysmorphology between the 2 conditions, to describe approaches for surgical correction, and to report surgical outcomes between FS and UC patients in a casecontrol fashion. METHODS: Patients treated for craniosynostosis over a 12-year period at our institution were retrospectively evaluated under institutional review board approval...
January 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29063595/pulmonary-anatomy-and-a-case-of-unilateral-aplasia-in-a-common-snapping-turtle-chelydra-serpentina-developmental-perspectives-on-cryptodiran-lungs
#14
E R Schachner, J C Sedlmayr, R Schott, T R Lyson, R K Sanders, M Lambertz
The common snapping turtle (Chelydra serpentina) is a well studied and broadly distributed member of Testudines; however, very little is known concerning developmental anomalies and soft tissue pathologies of turtles and other reptiles. Here, we present an unusual case of unilateral pulmonary aplasia, asymmetrical carapacial kyphosis, and mild scoliosis in a live adult C. serpentina. The detailed three-dimensional (3D) anatomy of the respiratory system in both the pathological and normal adult C. serpentina, and a hatchling are visualized using computed tomography (CT), microCT, and 3D digital anatomical models...
December 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29049269/long-term-surgical-outcomes-after-early-definitive-spinal-fusion-for-early-onset-scoliosis-with-neurofibromatosis-type-1-at-mean-follow-up-of-14-years
#15
Ryoji Tauchi, Noriaki Kawakami, Michael Anton Castro, Tetsuya Ohara, Toshiki Saito, Kazuaki Morishita, Ippei Yamauchi
BACKGROUND: Several authors mentioned surgical outcome for scoliosis associated with neurofibromatosis type 1 (NF-1). However, no studies have summarized long-term surgical outcomes after surgical treatment of early-onset scoliosis (EOS) with NF-1. The purpose of this study is to evaluate the long-term surgical outcome after early definitive spinal fusion for EOS in NF-1 patients. METHODS: We performed a retrospective review on a cohort of 11 patients diagnosed with EOS associated with NF-1 between 1990 and 2009 in our hospital...
October 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28955005/accurate-diagnosis-of-chronic-low-back-pain-in-a-high-level-college-athlete-a-case-report
#16
Kenji Yokoyama, Kazuta Yamashita, Masatoshi Morimoto, Fumitake Tezuka, Fumio Hayashi, Yoichiro Takata, Toshinori Sakai, Kosaku Higashino, Takashi Chikawa, Hiroshi Yonezu, Akihiro Nagamachi, Koichi Sairyo
A 21-year-old woman who was high-level college softball player presented with a 6-month history of low back pain that had been treated unsuccessfully by medication at local clinics. There was tenderness in the left paravertebral muscle at the lower lumbar level. X-ray and computed tomography revealed congenital scoliosis and an L6 hemivertebra. Short tau inversion recovery magnetic resonance imaging showed a fluid collection at the left L6-S1 facet joint. We performed a diagnostic facet injection, consisting of 1% lidocaine and steroids, that was infiltrated into the left facet joint at L6-S1...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28953709/differential-rod-contouring-is-essential-for-improving-vertebral-rotation-in-patients-with-adolescent-idiopathic-scoliosis-thoracic-curves-assessed-with-intraoperative-ct
#17
Shoji Seki, Peter O Newton, Yasuhito Yahara, Hiroto Makino, Masato Nakano, Norikazu Hirano, Yoshiharu Kawaguchi, Tomoatsu Kimura
STUDY DESIGN: A case series. OBJECTIVE: We investigated the contributions of rod contouring and differential rod contouring (DRC) to the reduction of apical axial vertebral body rotation in patients with adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: DRC is used for posterior spinal correction and fusion. The contribution of DRC to vertebral body derotation is unclear. METHODS: We analyzed the results of intraoperative computed tomography (CT) in 40 consecutive AIS patients with thoracic curves (Lenke type I or II, 35; type III or IV, 5)...
May 15, 2018: Spine
https://www.readbyqxmd.com/read/28944086/development-of-spinal-deformities-in-the-tight-skin-mouse
#18
Bing Li, Jill Pg Urban, Jing Yu
Tight-skin (TSK) mice are commonly used as an animal model to study the pathogenesis of Marfan syndrome (MFS), but little is known of their skeletal phenotype and in particular of the development of the spinal deformities, common in MFS. Here we examined growth of the axial skeletons of TSK and wild-type(B6) mice during their period of rapid growth. The whole bodies of mice, 4-12 weeks of age, were scanned after sacrifice, by micro-computed tomography (microCT). We reconstructed three-dimensional models of the spine and ribs, and measured vertebral body heights and rib lengths using the Mac-based image-processing software "OsiriX"...
2017: Bone Research
https://www.readbyqxmd.com/read/28943907/total-en-bloc-spondylectomy-of-the-eleventh-thoracic-vertebra-following-denosumab-therapy-for-the-treatment-of-a-giant-cell-tumor
#19
Gen Inoue, Takayuki Imura, Masayuki Miyagi, Wataru Saito, Ryo Tazawa, Toshiyuki Nakazawa, Masashi Takaso
Although denosumab has been reported to induce effective clinical results with respect to tumor shrinkage in a short-term follow-up clinical study, total spondylectomy is recognized as the treatment of choice for eradicating giant cell tumors (GCTs) of the spine. The present study reports the case involving a GCT in the 11th thoracic vertebra complicated by idiopathic scoliosis and treated using total en bloc spondylectomy (TES) with preoperative denosumab therapy. A 35-year-old woman received preoperative denosumab therapy for 8 months, followed by surgery using a computed tomography (CT)-based navigation system that optimized accuracy by recognizing the area of the detached parietal pleura, the irregular border of the collapsed vertebra, and the adjacent vertebra...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28843447/influence-of-spinopelvic-alignment-and-morphology-on-deviation-in-the-course-of-the-psoas-major-muscle
#20
Shimei Tanida, Shunsuke Fujibayashi, Bungo Otsuki, Kazutaka Masamoto, Shuichi Matsuda
BACKGROUND: In some people, the psoas major rises laterally or anteriorly at the L4/5 disc level and detaches from the most posterior aspect of the disc despite the absence of transitional vertebrae; this is called the "rising psoas sign." There are no reports of the relationship between spinopelvic parameters and rising psoas sign. The objective of this study was to investigate the relationship between spinopelvic parameters and deviations in the location and shape of psoas major muscle at the L4/5 disc level...
August 23, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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