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Burst fracture

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https://www.readbyqxmd.com/read/30403681/an-improved-geomechanical-model-for-the-prediction-of-fracture-generation-and-distribution-in-brittle-reservoirs
#1
Jianwei Feng, Li Li, Jianli Jin, Junsheng Dai, Peng Luo
It is generally difficult to predict fractures of low-permeability reservoirs under high confining pressures by data statistical method and simplified strain energy density method. In order to establish a series of geomechanical models for the prediction of multi-scale fractures in brittle tight sandstones, firstly, through a series of rock mechanics experiments and CT scanning, we determined 0.85 σc as the key thresholds for mass release of elastic strain energy and bursting of micro-fractures. A correlation between fracture volume density and strain energy density under uniaxial stress state was developed based on the Theory of Geomechanics...
2018: PloS One
https://www.readbyqxmd.com/read/30299485/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guidelines-on-the-evaluation-and-treatment-of-patients-with-thoracolumbar-spine-trauma-novel-surgical-strategies
#2
John H Chi, Kurt M Eichholz, Paul A Anderson, Paul M Arnold, Andrew T Dailey, Sanjay S Dhall, James S Harrop, Daniel J Hoh, Sheeraz Qureshi, Craig H Rabb, P B Raksin, Michael G Kaiser, John E O'Toole
BACKGROUND: Treatment of thoracolumbar burst fractures has traditionally involved spinal instrumentation with fusion performed with standard open surgical techniques. Novel surgical strategies, including instrumentation without fusion and percutaneous instrumentation alone, have been considered less invasive and more efficient treatments. OBJECTIVE: To review the current literature and determine the role of fusion in instrumented fixation, as well as the role of percutaneous instrumentation, in the treatment of patients with thoracolumbar burst fractures...
October 8, 2018: Neurosurgery
https://www.readbyqxmd.com/read/30280076/a-comparison-of-three-different-methods-of-fixation-in-the-management-of-thoracolumbar-fractures
#3
Pavlos Panteliadis, Omar Musbahi, Senthil Muthian, Shivam Goyal, Alexander Sheriff Montgomery, Arun Ranganathan
Background: Management of thoracolumbar fractures remains controversial in the literature. The primary aims of this study were to assess different levels of fixation with respect to radiological outcomes in terms of fracture reduction and future loss of correction. Methods: This is a single center, retrospective study. Fifty-five patients presenting with thoracolumbar fractures between January 2012 and December 2015 were analyzed in the study. The levels of fixation were divided in 3 groups: 1 vertebra above and 1 below the fracture (1/1), 2 above and 2 below (2/2), and 2 above and 1 below (2/1)...
January 2018: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/30264034/surgical-reduction-technique-transpedicle-for-unstable-thoracolumbar-burst-fractures-with-retropulsion-resulting-in-severe-spinal-canal-stenosis-a-preliminary-case-report
#4
Ch'ng Hwei Choo, Mun Keong Kwan, Yin Wei Chris Chan
Thoracolumbar burst fractures are common entity in polytraumatized patients. The retropulsed burst vertebral fracture may result in spinal canal invasion with or without neurological deficit. In this situation, early surgical stabilization with decompression is vital to restore neurological function. We employed a posterior approach with a unique transpedicular reduction technique at the level of fracture for decompression and stabilisation.
2018: AME case reports
https://www.readbyqxmd.com/read/30253466/time-dependent-fracture-under-unloading-in-a-fiber-bundle-model
#5
Réka Körei, Ferenc Kun
We investigate the fracture of heterogeneous materials occurring under unloading from an initial load. Based on a fiber bundle model of time-dependent fracture, we show that depending on the unloading rate the system has two phases: for rapid unloading the system suffers only partial failure and it has an infinite lifetime, while at slow unloading macroscopic failure occurs in a finite time. The transition between the two phases proved to be analogous to continuous phase transitions. Computer simulations revealed that during unloading the fracture proceeds in bursts of local breakings triggered by slowly accumulating damage...
August 2018: Physical Review. E
https://www.readbyqxmd.com/read/30185002/-case-control-study-of-pedicle-screw-fixation-combined-with-vertebroplasty-and-injured-vertebra-pedicle-fixation-in-treatment-of-osteoporotic-thoracolumbar-burst-fractures
#6
Wei-Yu Jiang, Wei-Hu Ma, Hua-Guo Zhao, Xu-Dong Hu, Yun-Ling Chen, Nan-Jian Xu, Chao-Yue Ruan
OBJECTIVE: To compare the curative effect of short-segment pedicle screw fixation combined with vertebroplasty and injured vertebra pedicle fixation in treating osteoporotic thoracolumbar burst fractures. METHODS: A retrospective study was performed for 52 patients with thoracolumbar burst fractures from August 2010 to August 2015. Among them, 27 patients(group A) were treated with short-segment pedicle screw fixation combined with vertebroplasty, including 17 males and 10 females, aged from 54 to 68 years old with an average of(61...
August 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/30185001/-treatment-of-thoracolumbar-burst-fractures-with-intelligent-inflated-reduction-combined-with-percutaneous-pedicle-screw-fixation
#7
Rong-Xue Shao, Bao-Ying Chen, Hui Zhou, Hao Pan, Jun Yue, Hui-Guo Chen, He-Jie Yang, Qing-Feng Hu, Ren-Fu Quan
OBJECTIVE: To evaluate the clinical outcome of intelligent inflated reduction combined with percutaneous pedicle screw fixation in treating thoracolumbar burst fractures. METHODS: The clinical data of 22 patients with thoracolumbar burst fractures of single segment treated from January 2013 to December 2015 were retrospectively analyzed. There were 12 males and 10 females, aged from 32 to 56 years old with an average of (42.4±8.6) years. Self-made intelligent pneumatic reset instrument was applied to 22 cases under anaesthesia reduction, and then percutaneous pedicle screw fixation was performed...
August 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/30171021/treatment-of-thoracolumbar-burst-fractures-using-orthosis-versus-no-orthosis
#8
Michael Hughes, Rami Ashour, Janardhan Rao
No abstract text is available yet for this article.
August 31, 2018: BMJ evidence-based medicine
https://www.readbyqxmd.com/read/30167741/percutaneous-versus-open-pedicle-screw-fixation-for-treatment-of-type-a-thoracolumbar-fractures
#9
Jan Kocis, Martin Kelbl, Tomas Kocis, Tomas Návrat
BACKGROUND: The purpose of this study was to evaluate the effectiveness between percutaneous and open pedicle screw fixation without fusion for treating type A3 and A4 thoracolumbar fractures. Traumatic thoracolumbar burst fracture is a common pathology without a consensus on the best treatment approach. Percutaneous pedicle screw fixation (PPSF) systems have been recently introduced in the treatment of spinal fractures to reduce the adverse effects associated with the conventional open approaches, such as iatrogenic muscle denervation and pain...
August 23, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/30152769/early-clinical-results-of-short-same-segment-posterior-fixation-in-thoracolumbar-burst-fractures
#10
Misbah Mehraj, Farid H Malik
BACKGROUND: We did a prospective study to study the efficiency of Short Segment Posterior Instrumentation using a Universal Spine System with incorporation of the fractured vertebra in post-traumatic thoracic and lumbar spine fractures. MATERIAL AND METHODS: 25 cases in the age group of I5-50 years with thoracic and lumbar spine fractures were included in the study. The operative decision was made on the basis of instability of spine fractures with or without neurological deficit...
June 30, 2018: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/30142856/a-finite-element-study-on-posterior-short-segment-fixation-combined-with-unilateral-fixation-using-pedicle-screws-for-stable-thoracolumbar-fracture
#11
Yunshan Su, Xiongfei Wang, Dong Ren, Yueju Liu, Shaoming Liu, Pengcheng Wang
The objective of this study was to use finite element models to investigate the biomechanics of stable thoracolumbar burst fracture repair using unilateral short-segment fixation and 4 alternate pedicle screw systems.Four posterior pedicle screw systems were compared for unilateral short-segment fixation using finite element models: intermediate bilateral short pedicle screw fixation, intermediate bilateral long pedicle screw fixation, intermediate unilateral short pedicle screw fixation, and intermediate unilateral long pedicle screw fixation...
August 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30114542/modified-posterior-short-segment-pedicle-screw-instrumentation-for-lumbar-burst-fractures-with-incomplete-neurological-deficit
#12
Sheng Yang, De-Peng Shang, Jian-Min Lu, Ji-Feng Liu, Da-Peng Fu, Fei Zhou, Yang Cong, Zhong-Zhe Lv
PURPOSE: We have introduced a method of modified posterior short-segment pedicle screw fixation and evaluated its clinical effects in treating lumbar burst fractures with incomplete neurological deficits. METHODS: The data from 22 patients with lumbar burst fracture and incomplete neurological deficits who had undergone modified posterior short-segment instrumentation with Schanz screw fixation from January 2012 to February 2018 in our clinic were evaluated in the present retrospective study...
November 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30113137/metaphyseal-burst-sign-a-secondary-sign-on-mri-of-subchondral-insufficiency-fracture-of-the-knee
#13
Alessandro Vidoni, Rachit Shah, Davina Mak, David Beale, Sioned Beale, Steven James, Rajesh Botchu
INTRODUCTION: To describe a novel secondary sign of subchondral insufficiency fracture of the knee, metaphyseal burst sign (soft tissue oedema in the meta-epiphyseal region of the affected condyle). METHODS: An electronic database research of 7926 knee MRI examinations was performed. Forty-eight scans were included in the study. The diagnosis of subchondral insufficiency fracture (SIF) was confirmed in a consensus review by one fellowship trained musculoskeletal (MSK) radiologist and one radiology fellow...
August 16, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/30076428/three-dimensional-thoracoscopic-vertebral-body-replacement-at-the-thoracolumbar-junction
#14
REVIEW
C Jacobs, M M Plöger, S Scheidt, P P Roessler, S Koob, K Kabir, C Jacobs, D C Wirtz, C Burger, R Pflugmacher, F Trommer
OBJECTIVE: The aim is to stabilize the thoracolumbar spine with a thoracoscopically implanted vertebral body replacement (VBR). To improve intraoperative depth perception and orientation, implantation is performed under three-dimensional (3D) thoracoscopic vision. INDICATIONS: Vertebral burst fractures at the thoracolumbar junction (A4 AOSpine classification), pseudarthrosis, and posttraumatic instability with increasing kyphosis. CONTRAINDICATIONS: Severe pulmonary dysfunctions, pulmonary or thoracic infections, previous thoracic surgery, and pulmonary adhesions...
October 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/30064028/decompression-with-lateral-pediculectomy-and-circumferential-reconstruction-for-unstable-thoracolumbar-burst-fractures-surgical-techniques-and-results-in-18-patients
#15
Woo-Keun Kwon, Woong-Bae Park, Gun-Young Lee, Joo Han Kim, Youn-Kwan Park, Hong Joo Moon
OBJECTIVE: We introduce our technique and results of retro-pleural/peritoneal "lateral pediculectomy" for the decompression of thoracolumbar fractures and reconstruction using expandable titanium cage, and circumferential fixation at a single stage. METHODS: 18 patients who had single unstable, burst thoracolumbar fracture were treated by this technique between January 2014 and December 2016 (T12: 9 cases, L1: 7 cases, L2: 2 cases). They were reviewed retrospectively in terms of radiologic (CT scan and X-ray), clinical outcomes and complications...
July 28, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30060372/spinal-gunshot-wounds-pattern-and-associated-lesions-in-civilians
#16
Jorge Arturo Cabrera Escamilla, Jorge Álvaro González Ross, José Manuel Pérez Atanasio, Gustavo Casas Martínez, Arelhi González Cisneros, Jose Jimenez Avila
STUDY DESIGN: Retrospective, descriptive case series study. PURPOSE: To investigate the frequency, bone pattern, and associated lesions to the spine of gunshot wounds. OVERVIEW OF LITERATURE: Gunshot wounds are penetrating in nature and are caused by a bullet or projectile. These are becoming more common and are associated with significant sequelae, requiring long and costly multidisciplinary treatment. Associated spinal cord injuries (SCIs) in the civilian population represent 13%-17% of all spinal traumas...
August 2018: Asian Spine Journal
https://www.readbyqxmd.com/read/30047857/burst-lacerations-a-new-term-for-a-common-injury-to-the-foot
#17
Eoin Fahey, Andrew Hughes, Ciara Egan, Colin G Murphy
OBJECTIVE: This case series describes four cases with a similar mechanism of injury: crush injuries to the foot from hydraulic presses/trailers. The aim of the study was to review a specific cohort of pneumatic compression injuries of the foot in terms of their soft-tissue component, and in particular relating to the burst lacerations. METHOD: The mechanism and patterns of injury were reviewed to identify common features in a case series of four crush injuries to the foot which presented to the Emergency Department of University Hospital Galway over a period of 6 months between January and July 2017...
2018: Journal of Agromedicine
https://www.readbyqxmd.com/read/30008109/comparison-of-combined-posterior-and-anterior-spondylodesis-versus-hybrid-stabilization-in-unstable-burst-fractures-at-the-thoracolumbar-spine-in-patients-between-60-and-70-years-of-age
#18
Ulrich J Spiegl, Brian M Devitt, Ihor Kasivskiy, Jan-Sven Jarvers, Christoph Josten, Christoph-Eckhard Heyde, Hannes M Fakler
INTRODUCTION: Surgical treatment of unstable burst fractures of the thoracolumbar spine in the elderly population is highly variable with combined posterior and anterior stabilization (CPAS) and posterior augmented stabilization with cementation of the vertebral body (hybrid) being two commonly used techniques. The aim of this study was to compare the clinical and radiographic outcomes of CPAS versus hybrid stabilization for the treatment of unstable burst fractures of the thoracolumbar spine in patients aged between 60 and 70 years...
July 14, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29952989/extent-and-location-of-fixation-affects-the-biomechanical-stability-of-short-or-long-segment-pedicle-screw-technique-with-screwing-of-fractured-vertebra-for-the-treatment-of-thoracolumbar-burst-fractures-an-observational-study-using-finite-element-analysis
#19
Hongwei Wang, Zhongjun Mo, Jianda Han, Jun Liu, Changqing Li, Yue Zhou, Liangbi Xiang, Lei Yang
Intermediate screw fixation at the fracture level has been widely accepted to treat thoracolumbar burst fractures, but no study has shown the effect of the extent and location of fixation. The effect of the extent and location of fixation on short- or long-segment pedicle screw fixation through intermediate screw fixation at the fracture level in the treatment of thoracolumbar burst fractures is discussed.Posterior intermediate screw fixation techniques in treating T12 vertebral fracture models were simulated and compared using finite element methods; the fixation techniques included M3-L1 (bilateral 3 monoaxial pedicle screw fixation from L1 to T11), M3-L2, M4-L1 (bilateral 4 monoaxial pedicle screw fixation from L1 to T10), M4-L2, M4-L3, and M5-L2 (bilateral 5 monoaxial pedicle screw fixation from L2 to T10)...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29945008/correlation-of-interpedicular-distance-with-radiographic-parameters-neurologic-deficit-and-posterior-structures-injury-in-thoracolumbar-burst-fractures
#20
Yao Li, Mingyu Huang, Jie Xiang, Yan Lin, Yaosen Wu, Xiangyang Wang
OBJECTIVE: To correlate interpedicular distance (IPD) with radiographic parameters, neurologic deficit, and posterior structures injury in patients with thoracolumbar burst fractures. METHODS: A total of 103 patients with a thoracolumbar burst fracture retrospectively reviewed. IPD was measured from the medial sclerotic areas of the pedicles on anteroposterior plain radiographs. Data on local kyphosis (LK), the ratio of anterior to posterior vertebral height (A/P ratio), loss of vertebral body height (LOVBH), spinal canal stenosis (SCS), neurologic status, and injuries to posterior structures (lamina, posterior ligamentous complex, and facet joint) were correlated with IPD using correlation analysis...
October 2018: World Neurosurgery
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