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Thoracolumbar fractures

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https://www.readbyqxmd.com/read/27926672/mechanisms-predisposing-factors-and-prognosis-of-intra-operative-vertebral-subluxation-during-pedicle-subtraction-osteotomy-in-surgical-correction-of-thoracolumbar-kyphosis-secondary-to-ankylosing-spondylitis
#1
Bang-Ping Qian, Sai-Hu Mao, Jun Jiang, Bin Wang, Yong Qiu
STUDY DESIGN: A retrospective study. OBJECTIVE: To analyze the mechanisms, predisposing factors and prognosis of the intraoperative vertebral subluxation (VS) during pedicle subtraction osteotomy (PSO) for thoracolumbar kyphosis secondary to ankylosing spondylitis (AS). SUMMARY OF BACKGROUND DATA: VS is one of the most daunting challenges that surgeons encounter during PSO closure, especially in AS patients with ankylosed and mostly osteoporotic spine...
December 6, 2016: Spine
https://www.readbyqxmd.com/read/27925638/biomechanical-analysis-of-intervertebral-cement-extravasation-in-vertebral-motion-segments
#2
Trevor C Wahlquist, John J Lee, Alexander Brunfeldt, Geoffrey T Burns, Rakesh D Patel, Gregory P Graziano
Kyphoplasty is a therapeutic option for pain relief in the setting of compression fractures. Cement extravasation into adjacent disks is a common occurrence. The biomechanical and clinical consequences of cement in the disks currently are unknown. This study investigated the biomechanical effects of cement extravasation into the intervertebral disk in a human cadaveric model. Seven thoracolumbar and lumbar embalmed human cadaveric motion segments were evaluated in axial rotation, right and left lateral bending, and flexion and extension...
December 7, 2016: Orthopedics
https://www.readbyqxmd.com/read/27922573/vertebroplasty-and-return-to-work-for-thoracolumbar-fractures-within-the-workers-compensation-population
#3
Jay M Levin, Joshua T Anderson, Arnold R Haas, Rick Percy, Stephen T Woods, Uri M Ahn, Nicholas U Ahn
STUDY DESIGN: Retrospective cohort study OBJECTIVE.: Analyze efficacy of vertebroplasty and its affect on return to work (RTW) in a workers' compensation (WC) population SUMMARY OF BACKGROUND DATA.: Vertebroplasty remains a controversial treatment modality for vertebral compression fractures (VCFs). No studies have analyzed use of vertebroplasty in the clinically distinct WC population. METHODS: A total of 371 Ohio WC subjects were identified who sustained VCFs and were treated with either vertebroplasty or conservative medical therapy between 1993 and 2013 using Current Procedural Terminology procedural and International Classification of Diseases, Ninth Revision diagnosis codes...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27886875/the-role-of-a-miniopen-thoracoscopic-assisted-approach-in-the-management-of-burst-fractures-involving-the-thoracolumbar-junction
#4
REVIEW
Ricky Raj S Kalra, Meic H Schmidt
Thoracoscopic spinal surgery is a minimally invasive open endoscopic approach to the anterior thoracolumbar spine for decompression and stabilization. It offers an alternative to open thoracotomy for thoracolumbar burst fractures, anterior spinal cord decompression, and spinal reconstruction with interbody and anterolateral plate instrumentation for restoration of biomechanical stability and alignment. Posterior instrumentation may not sufficiently stabilize a significantly disrupted anterior load-bearing spinal column, and the high access morbidity of open procedures is of significant concern...
January 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/27886872/pediatric-thoracolumbar-spine-trauma
#5
REVIEW
Visish Srinivasan, Andrew Jea
This article reviews thoracolumbar injury patterns that may be seen in children. Although much of the management of these injuries has been extrapolated from the adult literature, unique surgical and nonsurgical considerations in treating children with thoracolumbar spine fractures are discussed. In conclusion, most children achieve satisfactory outcomes in long-term follow-up after healing.
January 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/27879575/cost-utility-analysis-of-pedicle-screw-removal-after-successful-posterior-instrumented-fusion-in-thoracolumbar-burst-fractures
#6
Han-Dong Lee, Chang-Hoon Jeon, Nam-Su Chung, Young-Wook Seo
STUDY DESIGN: Cost-utility analysis (CUA). OBJECTIVE: Determine the cost-effectiveness of pedicle screw removal after posterior fusion in thoracolumbar burst fractures. SUMMARY OF BACKGROUND DATA: Pedicle screw instrumentation is a standard fixation method for unstable thoracolumbar burst fracture. However, removal of the pedicle screw after successful fusion remains controversial because the clinical benefits remain unclear. CUA can help clinicians make appropriate decisions about optimal healthcare for pedicle screw removal after successful fusion in thoracolumbar burst fractures...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27871096/responses-and-injuries-to-pmhs-in-side-facing-and-oblique-seats-in-horizontal-longitudinal-sled-tests-per-faa-emergency-landing-conditions
#7
John R Humm, Narayan Yoganandan, Frank A Pintar, Richard L DeWeese, David M Moorcroft, Amanda M Taylor, Brian Peterson
The objective of the present exploratory study is to understand occupant responses in oblique and side-facing seats in the aviation environment, which are increasingly installed in modern aircrafts. Sled tests were conducted using intact Post Mortem Human Surrogates (PMHS) seated in custom seats approximating standard aircraft geometry. End conditions were selected to represent candidate aviation seat and restraint configurations. Three-dimensional head center-of-gravity linear accelerations, head angular velocities, and linear accelerations of the T1, T6, and T12 spinous processes, and sacrum were obtained...
November 2016: Stapp Car Crash Journal
https://www.readbyqxmd.com/read/27867025/comparison-of-short-segment-pedicle-fixation-with-versus-without-inclusion-of-the-fracture-level-in-the-treatment-of-mild-thoracolumbar-burst-fractures
#8
Chao Sun, Guoping Guan, Xinhui Liu, Hailong Zhang, Bin Wang
BACKGROUND: A review of the literature showed that posterior short-segment fixation including the fractured vertebra (PSFFV) has better outcomes in the treatment of thoracolumbar burst fractures(TBFs) than patients with short-segment pedicle screw fixation(SSPF) alone. However, its efficacy in mild TBFs with load-sharing scores of 3 and 4 points has not been specifically analyzed. The aim of this study was to compare the clinical, functional and radiologic results of PSFFV with SSPF for mild TBFs and to determine whether the screws in the fractured vetebra were necessary for these patients...
November 17, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27866216/association-of-circulating-dipeptidyl-peptidase-4-levels-with-osteoporotic-fracture-in-postmenopausal-women
#9
H Kim, K H Baek, S-Y Lee, S H Ahn, S H Lee, J-M Koh, Y Rhee, C H Kim, D-Y Kim, M-I Kang, B-J Kim, Y-K Min
: Postmenopausal women with osteoporotic fracture (OF) had higher plasma dipeptidyl-peptidase 4 (DPP4) levels than those without. Furthermore, higher plasma DPP4 levels were significantly associated with higher bone turnover and a higher prevalence of OF. These results indicated that DPP4 may be associated with OF by mediating bone turnover rate. INTRODUCTION: Evidence indicates that dipeptidyl-peptidase 4 (DPP4) plays a distinct role in bone metabolism. However, there has been no report on the association, if any, between circulating DPP4 levels and osteoporosis-related phenotypes, including osteoporotic fracture (OF)...
November 19, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27864682/posterior-implant-removal-in-patients-with-thoracolumbar-spine-fractures-long-term-results
#10
A J Smits, L den Ouden, A Jonkergouw, J Deunk, F W Bloemers
PURPOSE: Debate remains whether posterior implants after thoracolumbar spine fracture stabilization should be removed routinely or only in symptomatic cases. Implant related problems might be resolved or even prevented but removal includes secondary risks. The aim of this study was to evaluate safety, patient satisfaction and quality of life after implant removal. METHODS: A retrospective cohort study was performed concerning 102 patients that underwent posterior implant removal after stabilization of a traumatic thoracolumbar fracture between 2003 and 2015...
November 18, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27856380/t9-versus-t10-as-the-upper-instrumented-vertebra-for-correction-of-adult-deformity-rationale-and-recommendations
#11
Hwee Weng Dennis Hey, Kimberly-Anne Tan, Christabel Shao-En Neo, Eugene Tze-Chun Lau, Denise Ai-Wen Choong, Leok-Lim Lau, Gabriel Ka-Po Liu, Hee-Kit Wong
BACKGROUND CONTEXT: Adult spinal deformity correction sometimes involves long posterior pedicle screw constructs extending from the lumbosacral spine to the thoracic vertebra. As fusion obliterates motion and places supraphysiological stress on adjacent spinal segments, it is crucial to ascertain the ideal upper instrumented vertebra (UIV) to minimize risk of proximal junctional failure (PJF). The T10 vertebra is often chosen to allow bridging of the thoracolumbar junction into the immobile thoracic vertebrae on the basis that it is the lowest immobile thoracic vertebra strut by the rib cage...
November 14, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27844231/a-new-method-to-precisely-control-the-depth-of-percutaneous-screws-into-the-pedicle-by-counting-the-rotation-number-of-the-screw-with-low-radiation-exposure-technical-note
#12
Xu Li, Feng Zhang, Wenzhi Zhang, Xifu Shang, Jintao Han, Pengfei Liu
STUDY DESIGN: Technique note. OBJECTIVES: To report a new method for precisely controlling the depth of percutaneous pedicle screws (PPS)-without radiation exposure to surgeons and less fluoroscopy exposure to patients than with conventional methods. PPS is widely used in minimal invasive spine surgery; the advantages include reduced muscle damage, pain, and hospital stays. However, placement of PPS demands repeated checking with fluoroscopy. Thus, radiation exposure is considerable for both surgeons and patients...
November 14, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27831489/increased-sagittal-vertical-axis-is-associated-with-less-effective-control-of-acute-pain-following-vertebroplasty
#13
Y-C Kim, D H Bok, H-G Chang, S W Kim, M S Park, J K Oh, J Kim, T-H Kim
OBJECTIVES: Although vertebroplasty is very effective for relieving acute pain from an osteoporotic vertebral compression fracture, not all patients who undergo vertebroplasty receive the same degree of benefit from the procedure. In order to identify the ideal candidate for vertebroplasty, pre-operative prognostic demographic or clinico-radiological factors need to be identified. The objective of this study was to identify the pre-operative prognostic factors related to the effect of vertebroplasty on acute pain control using a cohort of surgically and non-surgically managed patients...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/27828664/surgical-treatment-of-denis-type-b-thoracolumbar-burst-fracture-with-neurological-deficiency-by-paraspinal-approach
#14
H Wu, D-X Zhao, R Jiang, X-Y Zhou
We aimed to describe the surgical technique and clinical outcomes of paraspinal-approach reduction and fixation (PARF) in a group of patients with Denis type B thoracolumbar burst fracture (TLBF) with neurological deficiencies. A total of 62 patients with Denis B TLBF with neurological deficiencies were included in this study between January 2009 and December 2011. Clinical evaluations including the Frankel scale, pain visual analog scale (VAS) and radiological assessment (CT scans for fragment reduction and X-ray for the Cobb angle, adjacent superior and inferior intervertebral disc height, and vertebral canal diameter) were performed preoperatively and at 3 days, 6 months, and 1 and 2 years postoperatively...
2016: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/27825352/treatment-of-kyphosis-in-ankylosing-spondylitis-by-osteotomy-through-the-gap-of-a-pathological-fracture-a-retrospective-study
#15
Hongqi Zhang, Zhenhai Zhou, Chaofeng Guo, Yuxiang Wang, Honggui Yu, Longjie Wang
BACKGROUND: Surgical interventions are commonly advocated for correcting kyphotic deformities and relieving severe back pain in ankylosing spondylitis (AS) patients. The aim of this study was to evaluate the clinical outcome of osteotomy performed through the gap of a pathological fracture for the treatment of kyphosis in ankylosing spondylitis and to introduce the key points of this novel surgical approach. METHODS: From January 1, 2010, to December 31, 2014, 13 consecutive AS patients who were treated with osteotomy through the fracture gap were retrospectively reviewed...
November 8, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27816708/minimally-invasive-pedicle-screw-fixation-combined-with-percutaneous-vertebroplasty-for-the-treatment-of-thoracolumbar-burst-fracture
#16
Chunbo Li, Jianfeng Pan, Yutong Gu, Jian Dong
INTRODUCTION: To evaluate the feasibility, efficacy and safety of minimally invasive pedicle screw fixation (MIPS) combined with percutaneous vertebroplasty (PVP) using calcium phosphate for the treatment of thoracolumbar burst fracture without neurologic deficits. METHODS: Between September 2011 and April 2013, a total of thirty-seven patients with a mean age of 50.73 years (range 40-63 years), who suffered from thoracic or lumbar burst fracture without neurologic deficits underwent the procedure of MIPS combined with PVP using calcium phosphate...
November 3, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27807770/modified-one-stage-posterior-anterior-combined-surgery-with-posterior-pedicle-instrumentation-and-anterior-monosegmental-reconstruction-for-unstable-denis-type-b-thoracolumbar-burst-fracture
#17
Oujie Lai, Yong Hu, Zhenshan Yuan, Xiaoyang Sun, Weixin Dong, Jiao Zhang, Binke Zhu
PURPOSE: This study aimed to evaluate the clinical and radiological results in patients with unstable Denis type B thoracolumbar burst fractures treated by modified one-stage posterior/anterior combined surgery. METHODS: Thirty-one patients with unstable Denis type B thoracolumbar burst fractures were enrolled in this study. The patients underwent one-stage posterior/anterior combined surgery with posterior instrumentation using pedicle screws and anterior monosegmental reconstruction utilizing titanium mesh cages...
November 2, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27796404/-x%C3%A2-ray-of-the-thoracic-and-lumbar-spine-in-injured-children-and-adolescents-incidence-fracture-rates-and-therapeutic-consequences
#18
T Ruffing, M Wiehmann, H Winkler, M Muhm
INTRODUCTION: Usually, conventional radiographs are appropriate for injuries in the region of the thoracic and lumbar spine (TLS) in children and adolescents. The aim of our study was to determine the incidence of trauma-associated radiographic findings in this anatomical region and to present the therapeutic consequences. MATERIAL AND METHODS: In a retrospective cohort study (2007-2015) of a level 1 trauma center all children and adolescents (0-17 years) with a TLS-trauma, in which conventional radiographs were performed anteroposterior and lateral as the initial imaging modality, were included...
October 28, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27788683/analysis-of-the-independent-risk-factors-of-neurologic-deficit-after-thoracolumbar-burst-fracture
#19
Peifu Tang, Anhua Long, Tao Shi, Licheng Zhang, Lihai Zhang
BACKGROUND: The objective of this study is to identify the independent risk factors of neurologic deficit after thoracolumbar burst fracture. Traumatic fractures of the thoracolumbar spine are the most common type of spinal column fractures. Many studies have attempted to determine whether neurologic deficit in such fractures is related to spinal canal stenosis or other parameters observed on axial computed tomography. However, this relationship remains controversial. METHODS: A review of the clinical data and axial computed tomography (CT) for 105 patients was performed...
October 24, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27757682/percutaneous-versus-traditional-and-paraspinal-posterior-open-approaches-for-treatment-of-thoracolumbar-fractures-without-neurologic-deficit-a-meta-analysis
#20
Xiang-Yao Sun, Xi-Nuo Zhang, Yong Hai
PURPOSE: This study evaluated differences in outcome variables between percutaneous, traditional, and paraspinal posterior open approaches for traumatic thoracolumbar fractures without neurologic deficit. METHODS: A systematic review of PubMed, Cochrane, and Embase was performed. In this meta-analysis, we conducted online searches of PubMed, Cochrane, Embase using the search terms "thoracolumbar fractures", "lumbar fractures", ''percutaneous'', "minimally invasive", ''open", "traditional", "posterior", "conventional", "pedicle screw", "sextant", and "clinical trial"...
October 18, 2016: European Spine Journal
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