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Odontoid fracture

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https://www.readbyqxmd.com/read/28739203/-odontoid-fracture-in-an-elderly-patient-a-case-report
#1
Amaia Arrieta Salinas, Vincenzo Malafarina, Luis Miranda Orella, Nicolás Martínez Velilla
No abstract text is available yet for this article.
July 21, 2017: Revista Española de Geriatría y Gerontología
https://www.readbyqxmd.com/read/28736355/c2-bone-erosion-secondary-to-iatrogenic-pseudomeningocele-a-case-report-and-description-of-a-novel-surgical-technique
#2
Stephan N Salzmann, Lukas P Lampe, Brian Fernholz, Roger Härtl, Athos Patsalides, Alexander P Hughes
BACKGROUND: Pseudomeningoceles are a rare cause of bone erosions. Development of such erosions in the C2 vertebral body and the odontoid process can lead to life-threatening instability. Treatment options to regain stability include atlantoaxial and occipitocervical fusion. For patients with a history of Chiari decompression and large C2 lesions, common fusion techniques are not always feasible. Additionally fusion surgery sacrifices physiologic motion and is therefore a disabling procedure, especially for young and active patients...
July 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28720985/conservative-management-of-odontoid-peg-fractures-long-term-follow-up
#3
REVIEW
Aheed Osman, Nabil A Alageli, D J Short, W S El Masri
OBJECTIVE: The aim of the study was to look at the long-term effects of conservative management of odontoid peg fractures. METHODS: We reviewed 48 consecutive patients with type II (32) and 16 type III, odontoid peg fractures. The clinical & radiological outcomes were assessed over an average period of follow up of 8 years. Union rate was determined and we discussed several factors that may affect it. Patients were treated conservatively with an average period of bed rest of 4 weeks followed by bracing for an average of 9 weeks...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28704908/clinical-results-of-odontoid-fractures-according-to-a-modified-treatment-oriented-classification
#4
Eui-Jin Cho, Se-Hoon Kim, Won-Hyung Kim, Sung-Won Jin, Seung-Hwan Lee, Bum-Joon Kim, Sung-Gon Ha, Sang-Dae Kim, Dong-Jun Lim
OBJECTIVE: Odontoid fracture is common in cervical injury, representing about 20% of total cervical fractures. Classic odontoid fracture classification focused on anatomy of fracture site has no treatment recommendation and a modified treatment-oriented classification of odontoid fracture was suggested in 2005. We reviewed our odontoid fracture patients to assess the feasibility and efficacy of Grauer's classification. METHODS: Between October 2000 and September 2015, we collected data from patients who came to our institute for odontoid fracture...
June 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28694601/spastic-quadriparesis-due-to-pathological-fracture-of-odontoid-secondary-to-carcinoma-prostate-a-rare-presentation
#5
Maneet Gill, M N Swamy, Vikas Maheshwari, T S Lingaraju, Aishik Mukherjee
Prostate carcinoma presenting as symptomatic metastases to atlantoaxial spine is extremely rare. Spastic quadriparesis due to pathological fracture of odontoid as the only initial manifestation without symptoms of primary malignancy is rarer still. We report a 64-year-old male who presented with progressive spastic quadriparesis along with urinary retention of 3 weeks duration. Computed tomography and magnetic resonance imaging cervical spine and craniovertebral junction showed type III pathological fracture of odontoid with anterior translation of C1 with spinal cord compression...
April 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28693540/gallie-technique-versus-atlantoaxial-screw-rod-constructs-in-the-treatment-of-atlantoaxial-sagittal-instability-a-retrospective-study-of-49-patients
#6
Bo Yuan, Shengyuan Zhou, Xiongsheng Chen, Zhiwei Wang, Weicong Liu, Lianshun Jia
BACKGROUND: The objectives of this study are to investigate the clinical curative effect of Gallie technique and atlantoaxial screw-rod constructs (SRC) on atlantoaxial sagittal instability and determine the indication of Gallie technique. METHODS: Data of 49 patients with atlantoaxial sagittal instability from February 2008 to May 2015 were analyzed retrospectively. The visual analog scale (VAS) score and the neck disability index (NDI) were used to evaluate the curative effect...
July 11, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28683497/-influence-of-osseous-and-ligamentous-injuries-on-the-stability-of-the-atlantoaxial-complex
#7
Carolin Meyer, Jan Bredow, Elisa Heising, Peer Eysel, Lars Müller, Gregor Stein
Background The odontoid process and the transverse ligament are the most important structures stabilising the atlantoaxial complex. It has not been fully elucidated how injuries of these structures contribute towards instability and a potential narrowing of the spinal canal. Therefore, our investigation aimed to perform a biomechanical analysis of spinal width and dislocation of the odontoid process depending on injuries of the aforementioned structures. Methods In 10 fresh human cadaveric specimens, physiologic flexion and extension were simulated under fluoroscopy in intact specimens and after application of an odontoid process fracture and transverse ligament rupture in a crossover design...
June 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28673824/incorporating-ligament-laxity-in-a-finite-element-model-for-the-upper-cervical-spine
#8
Timothy L Lasswell, Duane S Cronin, John B Medley, Parham Rasoulinejad
BACKGROUND CONTEXT: Predicting physiological range of motion (ROM) using a finite element (FE) model of the upper cervical spine requires the incorporation of ligament laxity. The effect of ligament laxity can only be observed on a macro level of joint motion and is lost once ligaments have been dissected and preconditioned for experimental testing. As a result, although ligament laxity values are recognized to exist, specific values are not directly available in the literature for use in FE models...
June 30, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28647658/is-it-feasible-to-treat-odontoid-fractures-via-primary-posterior-reduction-and-fixation-without-fusion
#9
Dejun Zhong, Guangzhou Lee, Yehui Liao, Qing Wang
No abstract text is available yet for this article.
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28628156/-atlantoaxial-reduction-and-fixation-guided-by-the-intraoperative-ct
#10
(no author information available yet)
OBJECTIVE: To evaluate the clinical result of atlantoaxial reduction and fixation guided by the intraoperative CT. METHODS: Sixteen cases were retrospectively studied, including seven males and nine females, with the mean age of 49.9 years. Twelve cases were diagnosed as chronic atlantoaxial instability or dislocation, while four cases as acute odontoid fracture and dislocation. Among the sixteen cases, fourteen underwent atlantoaxial fusion, while two underwent temporary atlantoaxial fixation without fusion...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28627291/early-complications-morbidity-and-mortality-in-octo-and-nonagenarians-undergoing-posterior-intraoperative-spinal-navigation-based-c1-2-fusion-for-type-ii-odontoid-process-fractures
#11
Basem Ishak, Till Schneider, Valerie Gimmy, Andreas W Unterberg, Karl L Kiening
Type II odontoid fractures represent the most common cervical spine injury in the elderly. The decision for surgical treatment is still controversial, particularly with regard to the elevated perioperative risk attributed to frequent comorbidities and poor bone quality. Purpose of this study was to assess both short-term mortality and mid-term clinical and radiological outcome in the elderly. Between January 2007 and December 2015, 35 patients with type II odontoid process fractures who underwent posterior atlanto-axial instrumentation using a modified Goel-Harms technique were retrospectively analyzed and prospectively examined clinically and radiologically...
June 18, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28608179/anterior-submandibular-retropharyngeal-odontoid-osteotomy-and-posterior-atlantoaxial-fusion-for-irreducible-atlantoaxial-dislocation-associated-with-odontoid-fracture-malunion
#12
Cheng Li, Jingzhu Duan, Lei Li
PURPOSE: To report a case of complex odontoid fracture malunion accompanied by atlantoaxial dislocation which was treated with a new surgical approach. METHODS: A 53-year-old female was admitted due to progressive symptoms with a stiff limp and unsteady gait. Preoperative examination, diagnostic radiography, computed tomography, and magnetic resonance imaging were performed following admission. The examinations showed odontoid fracture malunion, an old right axial zygapophyseal fracture, atlantoaxial dislocation, and spinal cord injury...
June 12, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28525479/outcome-of-bilateral-c1-laminar-hooks-combined-with-c2-pedicle-screw-fixation-for-the-treatment-of-c1-c2-instability-a-report-of-18-cases-from-a-single-chinese-center
#13
Lifeng Lao, Guibin Zhong, Qianyi Li, Xinfeng Li, Bin Chen, Lie Qian, Zude Liu
STUDY DESIGN: A retrospective technical report. OBJECTIVE: To assess the effect of bilateral C1 laminar hooks combined with C2 pedicle screw fixation for the treatment of C1-C2 instability. SUMMARY OF BACKGROUND DATA: Various posterior atlantoaxial fixations for C1-C2 instability have been developed. However, due to anatomic anomalies of the vertebral artery, the smallness of the pedicle, trajectories of broken screws, or a lack of surgical experience, a simple atlantoaxial fixation technique with good safety and effectiveness is urgently needed...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28522382/brain-abscess-after-halo-fixation-for-the-cervical-spine
#14
Arthur Lopes, Almir Andrade, Igor Silva, Wellingson Paiva, Roger Brock, Manoel Teixeira
BACKGROUND: Halo fixation is one of the possible treatments for cervical spine fractures. However, improper use of these devices may lead to many complications, such as pin loosening, halo dislocation, pin site infection, and intradural penetration. CASE DESCRIPTION: We report the case of a 43-year-old man who first presented with a seizure and an altered level of consciousness 5 months after halo-vest placement for an odontoid fracture. Brain imaging showed a brain abscess, under the previous left parietal pin...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28512042/the-corona-dentis-description-of-an-anatomic-variant-with-technical-implications-for-anterior-odontoid-screw-placement
#15
Fernando Alonso, Joe Iwanaga, Jens R Chapman, Rod J Oskouian, R Shane Tubbs
BACKGROUND: Type 2 odontoid fractures are the most common cervical fractures among the elderly. Neurologic deficit is usually caused by myelopathy as a result of posterior dens migration. Direct anterior screw placement provides stabilization and can preserve C1-C2 movement. The presence of a bony excrescence on the anterior superior tip of the dens may lead to placement of a screw of incorrect length. METHODS: Twenty C2 dry specimens were examined for the presence of a corona dentis, which is a bony excrescence in the coronal plane near the apex of the dens...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28498058/endoscopic-endonasal-resection-of-the-odontoid-process-clinical-outcomes-in-34-adults
#16
Nathan T Zwagerman, Matthew J Tormenti, Zachary J Tempel, Eric W Wang, Carl H Snyderman, Juan C Fernandez-Miranda, Paul A Gardner
OBJECTIVE Treatment of odontoid disease from a ventral corridor has consisted of a transoral approach. More recently, the endoscopic endonasal approach (EEA) has been used to access odontoid pathology. METHODS A retrospective review was conducted of patients who underwent an EEA for odontoid pathology from 2004 to 2013. During our analysis, the mean follow-up duration was 42.6 months (range 1-80 months). Patient outcomes, complications, and postoperative swallowing function were assessed either by clinic visit or phone contact...
May 12, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28459776/postoperative-regression-of-retro-odontoid-pseudotumor-after-atlantoaxial-posterior-fixation-11-years-of-experience-in-patients-with-atlantoaxial-instability
#17
Jung Hyun Park, Eugene Lee, Joon Woo Lee, Yusuhn Kang, Joong Mo Ahn, Jin S Yeom, Heung Sik Kang
STUDY DESIGN: Case series study. OBJECTIVE: The aim was to investigate the incidence of retro-odontoid pseudotumor in patients with atlantoaxial instability (AAI) and evaluate pseudotumor regression after posterior fixation. SUMMARY OF BACKGROUND DATA: The incidence of retro-odontoid pseudotumor in atlantoaxial instability patients remains uncertain. Moreover, the regression of retro-odontoid pseudotumor after posterior fixation in patients with various underlying diseases needs to be further investigated...
April 28, 2017: Spine
https://www.readbyqxmd.com/read/28422889/an-in-vitro-biomechanical-evaluation-of-an-expansive-double-threaded-bi-directional-compression-screw-for-fixation-of-type-ii-odontoid-process-fractures-a-squire-compliant-article
#18
Ning Liu, Li Tian, Rong-Xian Jiang, Chao Xu, Lei Shi, Wei Lei, Yang Zhang
Odontoid process fracture accounts for 5% to 15% of all cervical spine injuries, and the rate is higher among elderly people. The anterior cannulated screw fixation has been widely used in odontoid process fracture, but the fixation strength may still be limited under some circumstances. This study aims to investigate the biomechanical fixation strength of expansive double-threaded bi-directional compression screw (EDBCS) compared with cannulated lag screw (CLS) and improved Herbert screw (IHS) for fixation of type II odontoid process fracture...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28409288/temporary-fusionless-posterior-occipitocervical-fixation-for-a-proximal-junctional-type-ii-odontoid-fracture-after-previous-c2-pelvis-fusion-case-report-description-of-a-new-surgical-technique-and-review-of-the-literature
#19
Alexander A Theologis, Vedat Deviren, Bobby Tay
PURPOSE: Axial fractures in patients with a previous C2-pelvis posterior instrumented fusion are rare and may be challenging to manage. Motion preservation in the axial spine for these patients is important, as the C1-2 and Occipit-C1 joints are their only remaining mobile spinal segments. In this unique report, we present for the first time the use of a fusionless occipitocervical operation for the treatment of a type II odontoid fracture and unilateral C2 pars fracture adjacent to a previous C2-pelvis posterior instrumented fusion...
May 2017: European Spine Journal
https://www.readbyqxmd.com/read/28403693/anterior-retropharyngeal-plate-screw-fixation-with-bilateral-anterior-transarticular-screws-for-odontoid-fractures-a-new-comprehensive-technique
#20
Sushil Patkar
INTRODUCTION: A certain group of odontoid fractures (Anderson and D' Alonzo Type-2) are usually offered surgical treatment. Common surgical option is an anterior odontoid screw. Some of the fractures are not suitable for anterior odontoid screw (anterior oblique, displaced distal fragments and those with atlantoaxial instability) and these are usually offered posterior transarticular screws (Magerl's) or posterior atlantoaxial screw rod/plate fixation (Goel-Harms technique). Posterior surgery involves atlantoaxial fixation with an indirect attempt to reduce and fuse the fracture ...
April 13, 2017: Neurological Research
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