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Odontoid fracture

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https://www.readbyqxmd.com/read/29310670/the-comparison-of-clinical-outcome-of-fresh-type-ii-odontoid-fracture-treatment-between-anterior-cannulated-screws-fixation-and-posterior-instrumentation-of-c1-2-without-fusion-a-retrospective-cohort-study
#1
Suomao Yuan, Bin Wei, Yonghao Tian, Jun Yan, Wanlong Xu, Lianlei Wang, Xinyu Liu
BACKGROUND: Recently, the excellent outcomes of temporary fixation of C1-2 without fusion in the treatment of odontoid fracture had been reported. It is still unclear if this technique could achieve the equivalent outcomes as the golden standard technique of anterior screw fixation. The objective of this study is to compare the clinical outcome of two treatments of fresh type II odontoid fracture: anterior cannulated screws fixation (ACSF) versus posterior instrumentation of C1-2 without fusion (PIWF)...
January 8, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29284890/a-safe-regional-technique-in-a-high-risk-patient-cervical-plexus-blockage
#2
Ayhan Kaydu, Ebru Tarıkçı Kılıç, Erhan Gökçek, Mehmet Salim Akdemir
Regional anesthesia in the form of combined cervical plexus block is gaining popularity as a technique of choice for cervical spine surgeries, especially for urgent ones. An important advantage is that it allows continuous monitoring of patient's neurological status. The success of the block often depends on accurate placement of the local anesthetic. Landmarks for the block are therefore of great importance. In this case, we aimed to present a 74-year-old man with C4-5 odontoid fracture. We planned to perform a unilateral combined cervical plexus block for anterior cervical instrumentation and fusion (ACIF) operation because of his associated high-risk comorbid disorders...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29247396/the-mechanism-in-junctional-failure-of-thoraco-lumbar-fusions-part-ii-analysis-of-a-series-of-pjk-after-thoraco-lumbar-fusion-to-determine-parameters-allowing-to-predict-the-risk-of-junctional-breakdown
#3
Antonio A Faundez, Jonathon Richards, Philippe Maxy, Rachel Price, Amélie Léglise, Jean-Charles Le Huec
PURPOSE: To identify risk factors, in 12 patients with junctional breakdown (JBD) after thoraco-sacral fusions and to test a software locating maximal bending moment on full spine EOS images. METHODS: Twelve patients underwent long fusions for lumbar degenerative pathologies. Preop EOS images were compared to first postop EOS showing JBD. Parameters analyzed were: spinopelvic parameters [pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), sagittal vertical axis (SVA), spinosacral angle (SSA), lordosis, and kyphosis], proximal junctional angle (PJA), odontoid-hip axis angle (ODHA), and CIA...
December 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29242977/the-mechanism-in-junctional-failure-of-thoraco-lumbar-fusions-part-i-biomechanical-analysis-of-mechanisms-responsible-of-vertebral-overstress-and-description-of-the-cervical-inclination-angle-cia
#4
Jean-Charles Le Huec, Jonathon Richards, Andreas Tsoupras, Rachel Price, Amélie Léglise, Antonio A Faundez
PURPOSE: The purpose of the study is to describe the biomechanical theory explaining junctional breakdowns in thoraco-lumbar fusions, by taking the example of vertebral compression fractures. Also, a new angle, the cervical inclination angle (CIA), describing the relative position of the head at each vertebral level, is presented. METHODS: For the CIA, the data were collected from 137 asymptomatic subjects of a prospective database, containing clinical and radiologic informations...
December 14, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29179604/anterior-screw-fixation-in-type-ii-odontoid-fracture-in-an-18-month-old-girl-a-case-report-and-review-of-the-literature
#5
Majid Reza Farrokhi, Hamid Rezaei, Farnaz Farrokhi
Odontoid fractures are among the rare cervical spine injuries in pediatric population and thus the optimal management of these injuries is controversial. The increasing trend in road traffic accidents and improvement in diagnostic modalities has led to an increased detection of odontoid fractures in pediatric population. We herein report type II odontoid fracture in an 18-month-old girl after falling off the motorcycle leading to hyperextension and flexion injury. She was successfully treated with anterior odontoid screw fixation followed by immobilization with hard collar for 2 months...
November 28, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29165688/management-of-odontoid-fractures-in-the-elderly-a-review-of-the-literature-and-an-evidence-based-treatment-algorithm
#6
Sravisht Iyer, R John Hurlbert, Todd J Albert
Odontoid fractures are the most common fracture of the axis and the most common cervical spine fracture in patients over 65. Despite their frequency, there is considerable ambiguity regarding optimal management strategies for these fractures in the elderly. Poor bone health and medical comorbidities contribute to increased surgical risk in this population; however, nonoperative management is associated with a risk of nonunion or fibrous union. We provide a review of the existing literature and discuss the classification and evaluation of odontoid fractures...
November 18, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29155062/fusion-failure-fatality-long-term-outcomes-after-surgical-versus-nonoperative-management-of-type-ii-odontoid-fracture-in-octogenarians
#7
Avital Perry, Christopher S Graffeo, Lucas P Carlstrom, Wendy Chang, Grant W Mallory, Ross C Puffer, Michelle J Clarke
INTRODUCTION: Type II odontoid fracture is a highly morbid injury among octogenarians, with 41% one-year mortality. Our objective was to assess long-term fusion, complication, and survival rates. METHODS: Retrospective review of prospective trauma registry. Blinded review of follow-up radiographs. RESULTS: Follow-up cohort included 94 nonoperative and 17 operative patients (median 52 and 79 months). Operative group had significantly higher rates of repeat surgery for primary treatment failure or complication (1% vs...
November 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29154124/the-effectiveness-and-clinical-outcomes-of-the-minerva-cervical-thoracic-jacket-in-patients-with-type-ii-odontoid-fractures
#8
Sait Öztürk, Fatih Serhat Erol, Bekir Akgün, Metin Kaplan
Background/aim: The objective of this study was to carry out a detailed analysis and assess the outcomes for the Minerva cervical thoracic jacket (CTJ) in patients with type II odontoid fractures who could not be surgically treated. Materials and methods: Twenty-six patients for whom the Minerva CTJ was used rather than surgery for different reasons were included in the study. All patients were fitted with the Minerva CTJ within the first 24 h following diagnosis. The patients were followed 4 weeks after hospital discharge and then at 2-week intervals...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29145253/anterior-endoscopically-assisted-bone-grafting-for-iatrogenic-distraction-of-odontoid-fracture-after-percutaneous-anterior-screw-fixation-a-case-report
#9
Ze-Xin Chen, Hui Zhang, Nai-Feng Tian, Xiang-Yang Wang, Yan Lin, Yao-Sen Wu
RATIONALE: The complication of iatrogenic distraction of odontoid fracture after anterior screw fixation has not been reported in the literature. We treated the patient with endoscopically assisted bone grafting with good results. The new technique was not reported in the management of odontoid fracture or nonunion before. PATIENT CONCERNS: A 22-year-old man presented with neck pain after a motorcycle crash. The cervical spine radiograph and computed tomographic scan demonstrated the base of dens displaced 2 mm anteriorly...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29095313/treatment-of-type-ii-odontoid-fracture-with-a-novel-technique-titanium-cable-dragged-reduction-and-cantilever-beam-internal-fixation
#10
Ce Zhu, Lei Wang, Hao Liu, Yueming Song, Limin Liu, Tao Li, Quan Gong
Surgical methods for type II odontoid fracture can be classified into 2 main groups: anterior or posterior approach. A more effective way to achieve bone fusion with the lowest possible surgical risk is needed. Therefore, the aim of our study was to describe and evaluate a novel technique, cable-dragged reduction/cantilever beam internal fixation for the treatment of type II odontoid fracture.This was a retrospective study enrolled 34 patients underwent posterior cable-dragged reduction/cantilever-beam internal fixation surgery...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29063167/-management-and-outcome-of-type-ii-fractures-of-the-odontoid-process
#11
Carolin Meyer, Johannes Oppermann, Ingo Meermeyer, Peer Eysel, Lars Peter Müller, Gregor Stein
BACKGROUND: The most effective treatment of type II dens fractures according to Anderson and D'Alonzo remains controversial as there is no guidance on the choice of conservative or surgical therapy and if the anterior or the posterior approach is more advantageous. In 1993 Eysel and Roosen showed that the consolidation rate of type II odontoid fractures mostly depends on the morphology of the fracture and established a classification with corresponding treatment recommendations. OBJECTIVE: The investigation aimed at clarifying the outcome of type II dens fractures treated according to the recommendations of Eysel and Roosen...
October 23, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29053084/intubation-biomechanics-validation-of-a-finite-element-model-of-cervical-spine-motion-during-endotracheal-intubation-in-intact-and-injured-conditions
#12
Benjamin C Gadomski, Snehal S Shetye, Bradley J Hindman, Franklin Dexter, Brandon G Santoni, Michael M Todd, Vincent C Traynelis, Robert P From, Ricardo B Fontes, Christian M Puttlitz
OBJECTIVE Because of limitations inherent to cadaver models of endotracheal intubation, the authors' group developed a finite element (FE) model of the human cervical spine and spinal cord. Their aims were to 1) compare FE model predictions of intervertebral motion during intubation with intervertebral motion measured in patients with intact cervical spines and in cadavers with spine injuries at C-2 and C3-4 and 2) estimate spinal cord strains during intubation under these conditions. METHODS The FE model was designed to replicate the properties of an intact (stable) spine in patients, C-2 injury (Type II odontoid fracture), and a severe C3-4 distractive-flexion injury from prior cadaver studies...
October 20, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29040717/letter-reconsidering-bone-morphogenetic-protein-in-the-cervical-spine-selective-use-for-managing-type-ii-odontoid-fractures-in-the-elderly
#13
Francis J Jareczek, Kingsley O Abode-Iyamah, Efrem M Cox, Nader S Dahdaleh, Patrick W Hitchon, Matthew A Howard
No abstract text is available yet for this article.
October 11, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29021682/spontaneous-regression-of-retro-odontoid-post-traumatic-cicatrix-following-occipitocervical-fixation
#14
Priyank Sinha, Ming-Te Lee, Sasan Panbehchi, Ankur Saxena, Debasish Pal
This case report describes a patient who presented with myelopathy secondary to a large retro-odontoid post traumatic cicatrix. The objective of this study was to discuss the clinical presentation, pathogenesis, imaging, and surgical management of pseudoarthrosis tissue mass associated with odontoid nonunion. Atlantoaxial subluxation (AAS) has been widely reported in patients with rheumatoid arthritis. AAS leads to repeated cycles of partial tear and repair of ligaments around the altantoaxial complex, resulting in the formation of periodontoid mass (pseudotumor)...
July 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29017980/predisposing-factors-of-fracture-nonunion-after-posterior-c1-lateral-mass-screws-combined-with-c2-pedicle-laminar-screw-fixation-for-type-ii-odontoid-fracture
#15
Hui Wang, Qian Wang, Lei Ma, Dalong Yang, Wenyuan Ding
INTRODUCTION: The aim of this study was to explore the predisposing factors for fracture nonunion after a lateral screw was combined with C2 pedicle/laminar screw for a type II odontoid fracture and hopefully provide references in decision making and surgical planning for spinal surgeons. METHODS: This is a retrospective study. By retrieving the medical records from January 2010 to July 2015 in our hospital, 117 type II odontoid fracture patients were reviewed. According to the occurrence of fracture union at the final follow-up, patients were divided into 2 groups: union and nonunion...
October 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28962628/percutaneous-anterior-c1-2-transarticular-screw-fixation-salvage-of-failed-percutaneous-odontoid-screw-fixation-for-odontoid-fracture
#16
Ai-Min Wu, Hai-Ming Jin, Zhong-Ke Lin, Yong-Long Chi, Xiang-Yang Wang
BACKGROUND: The objective of this study is to investigate the outcomes and safety of using percutaneous anterior C1/2 transarticular screw fixation as a salvage technique for odontoid fracture if percutaneous odontoid screw fixation fails. METHODS: Fifteen in 108 odontoid fracture patients (planned to be treated by percutaneous anterior odontoid screw fixation) were failed to introduce satisfactory odontoid screw trajectory. To salvage this problem, we chose the percutaneous anterior C1/2 transarticular screw fixation technique in treatment of these patients...
September 29, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28922277/percutaneous-posterior-trans-articular-atlantoaxial-fixation-for-the-treatment-of-odontoid-fractures-in-the-elderly-a-prospective-study
#17
Mohamed Alhashash, Mootaz Shousha, Hany Gendy, Ahmed Samir Barakat, Heinrich Boehm
STUDY DESIGN: A prospective study of 20 multimorbid patients older than 65 years undergoing minimally invasive surgical treatment for odontoid fracture. OBJECTIVES: To analyze the results of percutaneous transarticular atlantoaxial screw fixation as a new minimally invasive treatment modality in this high risk group of patients. SUMMARY OF BACKGROUND DATA: Odontoid fractures are a common injury pattern in the elderly. These fractures typically present significant challenges as geriatric patients often have multiple comorbidities that may adversely affect fracture management...
September 15, 2017: Spine
https://www.readbyqxmd.com/read/28902102/post-traumatic-spinal-hygroma-causing-cord-compression-in-type-iii-odontoid-fracture-with-vertical-atlantoaxial-instability
#18
Salvatore Russo, Antonio Belli, Andy Eynon, Ali Nader-Sepahi
STUDY DESIGN: Case report. OBJECTIVE: To report the first case in the literature of a traumatic cervical spine subdural cerebrospinal fluid (CSF) collection (hygroma) under tension causing cord compression. We suggest etiopathogenesis and modality of treatment. SUMMARY OF BACKGROUND DATA: Hygromas are subdural cranial CSF collection. A literature review showed no previous published case of post-traumatic spinal hygroma. This was a potential life-threatening sequelae of a high cervical injury that warranted early diagnosis and emergency treatment...
September 15, 2017: Spine
https://www.readbyqxmd.com/read/28881111/biomechanical-comparison-of-inter-fragmentary-compression-pressures-lag-screw-versus-herbert-screw-for-anterior-odontoid-screw-fixation
#19
Jin-Woo Park, Kyoung-Tae Kim, Joo-Kyung Sung, Seong-Hyun Park, Ki-Woong Seong, Dae-Chul Cho
OBJECTIVE: The purpose of the present study was to compare inter-fragmentary compression pressures after fixation of a simulated type II odontoid fracture with the headless compression Herbert screw and a half threaded cannulated lag screw. METHODS: We compared inter-fragmentary compression pressures between 40- and 45-mm long 4.5-mm Herbert screws (n=8 and n=9, respectively) and 40- and 45-mm long 4.0-mm cannulated lag screws (n=7 and n=10, respectively) after insertion into rigid polyurethane foam test blocks (Sawbones, Vashon, WA, USA)...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28864483/cadaveric-study-of-movement-in-the-unstable-upper-cervical-spine-during-emergency-management-tracheal-intubation-and-cervical-spine-immobilisation-a-study-protocol-for-a-prospective-randomised-crossover-trial
#20
Shiyao Liao, Erik Popp, Petra Hüttlin, Frank Weilbacher, Matthias Münzberg, Niko Schneider, Michael Kreinest
INTRODUCTION: Emergency management of upper cervical spine injuries often requires cervical spine immobilisation and some critical patients also require airway management. The movement of cervical spine created by tracheal intubation and cervical spine immobilisation can potentially exacerbate cervical spinal cord injury. However, the evidence that previous studies have provided remains unclear, due to lack of a direct measurement technique for dural sac's space during dynamic processes...
September 1, 2017: BMJ Open
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