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https://www.readbyqxmd.com/read/28650514/automatic-segmentation-of-the-spine-by-means-of-a-probabilistic-atlas-with-a-special-focus-on-ribs-suppression
#1
Silvia Ruiz-España, Juan Domingo, Antonio Díaz-Parra, Esther Dura, Víctor D'Ocón-Alcañiz, Estanislao Arana, David Moratal
PURPOSE: The development of automatic and reliable algorithms for the detection and segmentation of the vertebrae are of great importance prior to any diagnostic task. However, an important problem found to accurately segment the vertebrae is the presence of the ribs in the thoracic region. To overcome this problem, a probabilistic atlas of the spine has been developed dealing with the proximity of other structures, with a special focus on ribs suppression. METHODS: The data sets used consist of Computed Tomography images corresponding to 21 patients suffering from spinal metastases...
June 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28647094/long-term-prognosis-of-hematogenous-vertebral-osteomyelitis-mortality-quality-of-life-and-pain
#2
Terufumi Kokabu, Masahiko Takahata, Nobuhisa Ishiguro, Norimasa Iwasaki
BACKGROUND: Hematogenous vertebral osteomyelitis (HVO) has a generally favorable prognosis if appropriate treatment is initiated in its early phase; however, some intractable cases with HVO can develop neurological impairment as well as spinal deformity during the course of treatment and these sequelae may lead to impaired quality of life (QOL). In this study, we aimed to evaluate the long-term relapse rate, mortality, and QOL of patients with HVO. METHODS: In this retrospective case series study, medical records of 60 patients with HVO with a mean follow-up period of 8 years (5-23 years) were reviewed to assess demographic data, details of infection, and clinical course...
June 21, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28645674/does-spinal-deformity-correction-of-non-dystrophic-scoliosis-in-neurofibromatosis-type-1-with-one-stage-posterior-pedicle-screw-technique-produce-outcomes-similar-to-adolescent-idiopathic-scoliosis
#3
Qiunan Lyu, Chunguang Zhou, Yueming Song, Limin Liu, Lei Wang, Zhongjie Zhou
BACKGROUND CONTEXT: Efficacy of one-stage posterior pedicle screw instrument used in the treatment of non-dystrophic scoliosis in neurofibromatosis type-1(NF-1) is unknown. And there is no study that has directly compared the results of spinal deformity correction between non-dystrophic scoliosis in NF-1 and adolescent idiopathic scoliosis (AIS). PURPOSE: To study the efficacy of one-stage posterior pedicle screw instrument used in the treatment of non-dystrophic scoliosis in NF-1 and compare non-dystrophic scoliosis in NF-1 with matched AIS to illustrate the differences...
June 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28645673/supra-acetabular-line-is-better-than-supra-iliac-line-for-coronal-balance-referencing-a-study-of-perioperative-whole-spine-x-rays-in-degenerative-lumbar-scoliosis-and-ankylosing-spondylitis-patients
#4
Hwee Weng Dennis Hey, Cheung-Kue Kim, Won-Gyu Lee, Hyung-Suk Juh, Ki-Tack Kim
BACKGROUND CONTEXT: The aim of spinal deformity correction is to restore the spine's functional alignment by balancing it in both the sagittal and coronal planes. Regardless of posture, the ideal coronal profile is straight, and therefore readily assessable. PURPOSE: This study compares two radiological methods to determine which better predicts postoperative standing coronal balance. STUDY DESIGN/SETTING: We conducted a single-centre, radiographic comparative study between 2011 and 2015...
June 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28645595/transforaminal-endoscopic-decompression-for-a-displaced-endplate-fracture-after-lateral-lumbar-interbody-fusion-technical-note
#5
Ralf Wagner, Albert E Telfeian, Guntram Krzok, Menno Iprenburg
Lateral lumbar interbody fusion (LLIF) is a minimally-invasive approach to anterior spinal column fusion, deformity correction and indirect decompression of the lumbar spine. A rarely reported possible complication of the procedure is endplate fracture which has the potential for nerve root compression. Here we present a case of endplate fracture and nerve compression after stand-alone LLIF, its diagnosis, and its subsequent successful treatment with transforaminal endoscopic spine surgery. The case highlights the possible role for minimally invasive endoscopic surgery as a rescue procedure after fusion complication...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28642653/clinical-application-of-a-drill-guide-template-for-pedicle-screw-placement-in-severe-scoliosis
#6
Xin Li, Yaoshen Zhang, Qiang Zhang, Changsong Zhao, Kun Liu
OBJECTIVE: To evaluate the accuracy and the effect of drill guide template for pedicle screw placement in severe scoliosis. METHOD: Eight patients with rigid scoliosis were enrolled, five males and three females, ranging from nine to 23 years old. A three-dimensional CT scan of the spine was performed and saved as a DICOM file type. The multi-level template was designed by Mimics software and manufactured according to the part of the most severe deformity. The drill template was placed on the corresponding vertebral surface...
March 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28640106/the-outcome-of-eosinophilic-granuloma-involving-unilateral-atlantoaxial-joint-a-case-report-and-literature-review
#7
Yu Song, Wen Geng, Tao Guo, Yong Gao, Yukun Zhang, Shuai Li, Kun Wang, Ji Tu, Cao Yang
RATIONALE: Solitary eosinophilic granuloma (EG), the most benign, common form of Langerhans cell histiocytosis, has a self-limiting process and is associated with a good prognosis. Immobilization is recommended as the first treatment strategy for solitary EG, although the treatment protocols are still controversial. Radiotherapy and surgery are secondary treatment choices. Lesions of the upper cervical spine react differently to treatment because of their specific anatomical and motor features...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28638492/importance-of-radiological-evaluation-of-global-spinal-balance-together-with-lower-limb-alignment-in-planning-lumbar-spine-deformity-surgery-illustrative-case-presentation
#8
Mariusz Głowacki, Jerzy Walecki, Przemysław Kołakowski, Danuta Kolońska
BACKGROUND: The presented case illustrates the critical role of a detailed preoperative radiological evaluation in complex spine surgery. CASE REPORT: A 49-year-old patient was admitted for a revision surgery after L3-L5 fusion. Preoperative assessment showed preserved sagittal balance, coronal imbalance and valgus knee deformity. The patient reported pain of 8-10 in VAS (Visual Analogue Scale) and had an ODI (Oswestry Disability Index) of 60%. The first step of the surgery was L2-S1 fusion with decompression and spine deformity correction...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28637483/analyzing-human-decisions-in-igrt-of-head-and-neck-cancer-patients-to-teach-image-registration-algorithms-what-experts-know
#9
Eva Maria Stoiber, Nina Bougatf, Hendrik Teske, Christian Bierstedt, Dieter Oetzel, Jürgen Debus, Rolf Bendl, Kristina Giske
BACKGROUND: In IGRT of deformable head-and-neck anatomy, patient setup corrections are derived by rigid registration methods. In practice, experienced radiation therapists often correct the resulting vectors, thus indicating a different prioritization of alignment of local structures. Purpose of this study is to transfer the knowledge experts apply when correcting the automatically generated result (pre-match) to automated registration. METHODS: Datasets of 25 head-and-neck-cancer patients with daily CBCTs and corresponding approved setup correction vectors were analyzed...
June 21, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28631069/-s2-ala-iliac-screws-for-extended-pelvic-fixation-in-longer-lumbar-instrumentations-description-of-a-freehand-technique
#10
REVIEW
F Lattig, S Weckbach
OBJECTIVE: To reduce the rate of implant failures at the lumbosacral junction in polysegmental lumbar fusions. INDICATIONS: Spinal fusion with deformity correction including L5/S1, revision surgery for pseudoarthrosis L5/S1, screw pull-out and pedicle fractures in S1, and S1/S2 fractures after polysegmental fusions. CONTRAINDICATIONS: Osteosynthesis of complex pelvic ring fractures, tumors of the ilium. Relative contraindication: infection, to avoid contamination of the iliosacral joint...
June 19, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28630751/correction-manoeuvres-in-the-surgical-treatment-of-spinal-deformities
#11
Alpaslan Senkoylu, Mehmet Cetinkaya
Correction manoeuvres are as important as the other issues such as hardware selection, graft options, fusion and osteotomy techniques in the surgical treatment of spinal deformities.The property of materials demonstrating both viscous and elastic characteristics when undergoing deformation is called visco-elasticity. Purely elastic materials change in shape with a stress, and go back to their initial form when the stress is removed. However, visco-elastic materials, like the spine, may protect their new formation unless a back stress is applied...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28623748/occupant-thorax-response-variations-due-to-arm-position-and-restraint-systems-in-side-impact-crash-scenarios
#12
Donata Gierczycka, Duane S Cronin
Recent epidemiological studies have identified that thoracic side airbags may vary in efficacy to reduce injury severity in side impact crash scenarios, while previous experimental and epidemiological studies have presented contrasting results. This study aimed to quantify the variations in occupant response in side impact conditions using a human body computational model integrated with a full vehicle model. The model was analyzed for a Moving Deformable Barrier side impact at 61km/h to assess two pre-crash arm positions, the incorporation of a seatbelt, and a thorax air bag on thorax response...
June 13, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28622903/cell-saver-for-adult-spinal-deformity-surgery-reduces-cost
#13
Jeffrey L Gum, Leah Yacat Carreon, Michael P Kelly, Richard Hostin, Chessie Robinson, Douglas C Burton, David W Polly, Christopher I Shaffrey, Virginie LaFage, Frank J Schwab, Christopher P Ames, Han Jo Kim, Justin S Smith, R Shay Bess
STUDY DESIGN: Retrospective cohort. OBJECTIVES: To determine if the use of cell saver reduces overall blood costs in adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: Recent studies have questioned the clinical value of cell saver during spine procedures. METHODS: ASD patients enrolled in a prospective, multicenter surgical database who had complete preoperative and surgical data were identified. Patients were stratified into (1) cell saver available during surgery, but no intraoperative autologous infusion (No Infusion group), or (2) cell saver available and received autologous infusion (Infusion group)...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28622902/a-critical-analysis-of-sagittal-plane-deformity-correction-with-minimally-invasive-adult-spinal-deformity-surgery-a-2-year-follow-up-study
#14
Gregory M Mundis, Jay D Turner, Vedat Deverin, Juan S Uribe, Pierce Nunley, Praveen Mummaneni, Neel Anand, Paul Park, David O Okonkwo, Michael Y Wang, Shay Bess, Adam S Kanter, Richard Fessler, Stacie Nguyen, Behrooz A Akbarnia
INTRODUCTION: Sagittal plane realignment is important to achieve desirable clinical outcomes after adult spinal deformity (ASD) surgery. This study evaluates the impact of minimally invasive (MIS) techniques on sagittal plane alignment and clinical outcomes in ASD patients. METHODS: A retrospective, multi-center review of ASD patients (age ≥18 years, and with one of the following: coronal Cobb ≥20°, sagittal vertical axis [SVA] >5 cm, and/or pelvic tilt >25°), MIS surgery, and four or more levels instrumented...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28622901/tridimensional-analysis-of-rotatory-subluxation-and-sagittal-spinopelvic-alignment-in-the-setting-of-adult-spinal-deformity
#15
Emmanuelle Ferrero, Renaud Lafage, Bassel G Diebo, Vincent Challier, Brice Illharreborde, Frank Schwab, Wafa Skalli, Pierre Guigui, Virginie Lafage
STUDY DESIGN: Retrospective single-center. OBJECTIVE: To investigate rotatory subluxation (RS) in adult spinal deformity (ASD) with three-dimensional (3D) stereoradiographic images and analyze relationships between RS, transverse plane parameters, spinopelvic parameters, and clinical outcomes. BACKGROUND: Recent research has demonstrated that sagittal plane malalignment and listhesis correlate with ASD patient-reported outcomes. However, there is still a lack of knowledge regarding the clinical impact of 3D evaluation and rotatory subluxation...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28614287/nasal-swab-screening-for-staphylococcus-aureus-in-spinal-deformity-patients-treated-with-growing-rods
#16
Scott J Luhmann, June C Smith
BACKGROUND: Surgical-site infections are one of the most concerning complications in patients treated with growing rods (GR). The purpose of this study was to evaluate the use of preoperative screening for Staphylococcus aureus (SA) for all growing spine procedures, and if this would permit alteration of prophylactic antibiotics to cover the identified resistances. METHODS: All patients were identified who had SA screening during the course of GR treatment. In otal, 34 patients [23 neuromuscular (NMS), 4 congenital, 4 idiopathic scoliosis (IS), and 3 syndromic] were identified who had 111 preoperative screenings [79 lengthenings, 23 insertions, 6 revisions, and 3 conversions to posterior spinal fusions (PSF)]...
June 13, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28614284/cervical-spine-deformities-in-children-with-rhizomelic-chondrodysplasia-punctata
#17
Oussama Abousamra, Vinay Kandula, Angela L Duker, Kenneth J Rogers, Michael B Bober, William G Mackenzie
BACKGROUND: Cervical spine deformity in rhizomelic chondrodysplasia punctata (RCDP) has been described with different findings reported in the literature. However, available literature provides limited data from a few cases with magnetic resonance imaging (MRI) of the cervical spine. Our report describes the MRI findings in a group of children with RCDP, aiming to reach a better understanding of this pathology. METHODS: An Institutional Review Board-approved RCDP Registry was created at our institution with the goal of identifying pertinent medical issues over the lifespan of individuals with RCDP...
June 13, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28614236/utilization-of-ring-shaped-bone-allograft-for-surgical-treatment-of-adolescent-post-tubercular-kyphosis-a-retrospective-study
#18
Xiang Yin, Peng Liu, Yao-Yao Liu, Wei-Li Fan, Bai-Yi Liu, Jian-Hua Zhao
This study aimed to investigate the mid-term outcome of ring-shaped bone allografts in the surgical treatment of adolescent post-tubercular kyphosis secondary to spinal tuberculosis.The records of adolescent patients diagnosed with spinal tuberculosis who received treatment in our department between 2009 and 2013 were retrospectively reviewed. The anterior approach was used in cases of cervical kyphosis and the posterior approach was used in cases of thoracic and lumbar kyphosis. During the surgery, the ring-shaped bone was used as a structural bone graft associated with the cancellous bone filing in the center portion of the ring shape...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28609324/results-of-the-2015-scoliosis-research-society-survey-on-single-versus-dual-attending-surgeon-approach-for-adult-spinal-deformity-surgery
#19
Justin K Scheer, Rajiv K Sethi, Lloyd A Hey, Michael O LaGrone, Malla Keefe, Henry E Aryan, Thomas J Errico, Vedat Deviren, Robert A Hart, Virginie Lafage, Frank Schwab, Michael D Daubs, Christopher P Ames
STUDY DESIGN: An electronic survey administered to Scoliosis Research Society (SRS) membership. OBJECTIVE: To characterize surgeon practices and views regarding the use of two attending surgeons for adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: The use of two experienced attending surgeons can decrease the operative time, estimated blood loss, and perioperative complication rates. However, the current practice patterns for the use of two attending surgeons remains unknown...
June 15, 2017: Spine
https://www.readbyqxmd.com/read/28609322/thoracic-spine-growth-revisited-how-accurate-is-the-dimeglio-data
#20
Ozgur Dede, Kadir Büyükdoğan, Halil Gökhan Demirkıran, Erhan Akpınar, Muharrem Yazici
STUDY DESIGN: Cross-sectional descriptive study. OBJECTIVE: To describe the normal rate pattern of thoracic spine growth in children without any spinal deformity. SUMMARY OF BACKGROUND DATA: The knowledge of thoracic spine growth and height is important for growing spine treatment and the decision of final fusion. Currently, pediatric spinal deformity is approached as early onset and late onset with an understanding of the fast growth during the first 5 years of life...
June 15, 2017: Spine
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