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Odontoid fracture

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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
#1
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
#2
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...
April 13, 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
#3
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
https://www.readbyqxmd.com/read/28399555/management-of-unusual-atlantoaxial-dislocation
#4
Ruipeng Song, Daoyang Fan, Han Wu, Zhen Zhang, Liang Zhao, Yilin Liu, Wensheng Liao, Hongyu Tan, Limin Wang, Weidong Wang
STUDY DESIGN: A case report and review of the literature. OBJECTIVE: The aim of this study was to describe the successful treatment of one posterior atlantoaxial dislocation without fracture and to review the relevant literature. SUMMARY OF BACKGROUND DATA: Posterior atlantoaxial dislocation without fracture of the odontoid process is extremely rare. Management of these patients is still unknown. METHODS: A posterior atlantoaxial dislocation without fracture in a 58-year-old man with incomplete quadriplegia was treated surgically with posterior atlantoaxial pedicle screws internal fixation and fusion after closed reduction...
April 15, 2017: Spine
https://www.readbyqxmd.com/read/28345069/an-uncommon-case-mimicking-cervical-trauma-os-odontoideum
#5
Idiris Altun, Kasim Zafer Yuksel
Os odontoideum is a separate odontoid process from the body of the axis. It is the most common anomaly of the odontoid process. Patients with this condition can be asymptomatic or present with a wide range of neurological dysfunctions. It may cause cervical instability, atlantoaxial dislocation and myelopathy. This anomaly can mimic Type I and II odontoid fractures. There is a role for conservative treatment of an asymptomatic incidentally found, radiologically stable and non-compressive os odontoideum. However, surgical treatment has a definitive role in symptomatic cases...
March 2017: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28256741/osteoporosis-is-the-most-important-risk-factor-for-odontoid-fractures-in-the-elderly
#6
Johannes Kaesmacher, Claudia Schweizer, Alexander Valentinitsch, Thomas Baum, Anna Rienmüller, Bernhard Meyer, Jan S Kirschke, Yu-Mi Ryang
Traumatic odontoid fractures (TOFs) have been described as the most common injury affecting the C-spine in the elderly. Previous studies have identified degenerative changes and bone loss as important predisposing factors. However, their interaction and respective age-adjusted impact needs further clarification. We conducted a retrospective analysis of 5303 patients (aged ≥60 years) admitted to a level I trauma center between January 2008 and January 2016 who underwent CT imaging of the C-spine. Ninety-two patients with TOF and 80 patients with other cervical spine fractures (OCSF) were identified and a respective 3:1 age- and sex-matched control group without fractures after trauma was built...
March 3, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28255505/odontoid-fracture-in-a-patient-with-diffuse-idiopathic-skeletal-hyperostosis
#7
Adan Omar, Addisu Mesfin
Nonoperative management of fractures in the setting of diffuse idiopathic skeletal hyperostosis (DISH) or ankylosing spondylitis is often unsuccessful. The subaxial spine is a common site of hyperextension fractures in the setting of DISH. Fractures of the upper cervical spine are uncommon in DISH. We report, to our knowledge, the first case describing successful nonoperative management of a type 2 odontoid fracture in a patient with DISH. We discuss the patient's initial presentation, physical examination, imaging findings, and management...
March 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/28253944/-management-of-odontoid-fractures-with-compression-screw-and-anterior-transarticular-screw-fixation-in-elderly-patients
#8
J Kočiš, M Kelbl, R Veselý, T Kočiš
PURPOSE OF THE STUDY In the management of dens axis fractures in patients older than 65 years of age the posterior approach is preferred due to osteoporosis and the risk of a failure of anterior osteosynthesis. The posterior approach, however, is associated with a higher incidence of complications. A combination of anterior transarticular fixation of C1/2 (ATS) with compression osteosynthesis of dens axis significantly increases the stability of osteosynthesis. MATERIAL AND METHODS In the period from 2009 to 2015 our hospital admitted 13 patients older than 65 years of age with a diagnosed type III dens axis fracture based on AO classification...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28250639/patient-reported-outcome-following-nonsurgical-management-of-type-ii-odontoid-process-fractures-in-adults
#9
Maged D Fam, Hussein A Zeineddine, Rafiq Muhammed Nassir, Pragnesh Bhatt, Mahmoud H Kamel
BACKGROUND: Transverse (type II) odontoid process fracture is among the most commonly encountered cervical spine fractures. Nonsurgical management through external immobilization is occasionally preferred to surgical management but is criticized for its higher rates of failure and lower patient satisfaction. Our aim is to analyze patient-reported outcomes in patients who underwent nonsurgical treatment for type II odontoid fractures. METHODS: We identified patients >18-year-old who underwent external immobilization as a treatment for isolated type II odontoid fracture between 2007 and 2012...
January 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28250633/top-50-most-cited-articles-on-craniovertebral-junction-surgery
#10
Nima Alan, Jonathan Andrew Cohen, James Zhou, Matthew Pease, Adam S Kanter, David O Okonkwo, David Kojo Hamilton
BACKGROUND: Craniovertebral junction is a complex anatomical location posing unique challenges to the surgical management of its pathologies. We aimed to identify the fifty most-cited articles that are dedicated to this field. METHODS: A keyword search using the Thomson Reuters Web of Knowledge was conducted to identify articles relevant to the field of craniovertebral junction surgery. The articles were reviewed based on title, abstract, and methods, if necessary, and then ranked based on the total number of citations to identify the fifty most-cited articles...
January 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28243364/biomechanical-assessment-of-stabilization-of-simulated-type-ii-odontoid-fracture-with-case-study
#11
Roy T Daniel, Mir M Hussain, Noelle Klocke, Soumya S Yandamuri, Lukas Bobinski, John M Duff, Brandon S Bucklen
STUDY DESIGN: Researchers created a proper type II dens fracture (DF) and quantified a novel current posterior fixation technique with spacers at C1-C2. A clinical case study supplements this biomechanical analysis. PURPOSE: Researchers explored their hypothesis that spacers combined with posterior instrumentation (PI) reduce range of motion significantly, possibly leading to better fusion outcomes. OVERVIEW OF LITERATURE: Literature shows that the atlantoaxial joint is unique in allowing segmental rotary motion, enabling head turning...
February 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28229224/factors-affecting-survival-of-patients-in-the-acute-phase-of-upper-cervical-spine-injuries
#12
Tomonori Morita, Tsuneo Takebayashi, Hideto Irifune, Hirofumi Ohnishi, Suguru Hirayama, Toshihiko Yamashita
INTRODUCTION: In recent years, on the one hand, the mortality rates of upper cervical spine injuries, such as odontoid fractures, were suggested to be not so high, but on the other hand reported to be significantly high. Furthermore, it has not been well documented the relationship between survival rates and various clinical features in those patients during the acute phase of injury because of few reports. This study aimed to evaluate survival rates and acute-phase clinical features of upper cervical spine injuries...
February 22, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28217386/true-oblique-axis-fracture-associated-with-congenital-anomalies-of-the-upper-cervical-spine-case-report-of-an-unusual-fracture-pattern
#13
Luis A Robles
BACKGROUND: Acute traumatic axis fractures are common cervical spine injuries often caused by road accidents or falls. They are usually classified into three different types, namely, odontoid fractures, Hangman's fractures, and miscellaneous fractures. Congenital malformations of the craniovertebral junction (CVJ), although typically asymptomatic, may result in neural compression or instability, especially following trauma. Here, the authors present an unusual oblique axis fracture occurring in conjunction with several malformations of the upper cervical spine...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28194180/passage-of-an-anterior-odontoid-screw-through-gastrointestinal-tract
#14
L Leitner, C I Brückmann, M M Gilg, G Bratschitsch, P Sadoghi, A Leithner, R Radl
Purpose. Anterior screw fixation has become a popular surgical treatment method for instable odontoid fractures. Screw loosening and migration are a rare, severe complication following anterior odontoid fixation, which can lead to esophagus perforation and requires revision operation. Methods. We report a case of screw loosening and migration after anterior odontoid fixation, which perforated the esophagus and was excreted without complications in a 78-year-old male patient. Results. A ventral dislocated anterior screw perforated through the esophagus after eight years after implantation and was excreted through the gastrointestinal (GI) tract...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28182084/c2-fracture-subtypes-incidence-and-treatment-allocation-change-with-age-a-retrospective-cohort-study-of-233-consecutive-cases
#15
Anna-Lena Robinson, Anders Möller, Yohan Robinson, Claes Olerud
The currently available data on the distribution of C2 fracture subtypes is sparse. This study was designed to identify the proportions of the second cervical vertebra (C2) fracture subtypes and to present age and gender specific incidences of subgroups. A dataset of all patients treated between 2002 and 2014 for C2 fractures was extracted from the regional hospital information system. C2 fractures were classified into odontoid fractures types 1, 2, and 3, Hangman's fractures types 1, 2, and 3, and atypical C2 fractures...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28175376/odontoid-fractures-and-the-silver-tsunami-evidence-and-practice-in-the-very-elderly
#16
Christopher S Graffeo, Avital Perry, Ross C Puffer, Lucas P Carlstrom, Wendy Chang, Grant W Mallory, Michelle J Clarke
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28144584/teriparatide-anabolic-therapy-as-potential-treatment-of-type-ii-dens-non-union-fractures
#17
Enrico Pola, Virginia Pambianco, Debora Colangelo, Virginia M Formica, Giovanni Autore, Luigi A Nasto
Odontoid fractures account for 5% to 15% of all cervical spine injuries and 1% to 2% of all spine fractures. Type II fractures are the most common fracture pattern in elderly patients. Treatment (rigid and non-rigid immobilization, anterior screw fixation of the odontoid and posterior C1-C2 fusion) remains controversial and represents a unique challenge for the treating surgeon. The aims of treatment in the elderly is to quickly restore pre-injury function while decreasing morbidity and mortality associated with inactivity, immobilization with rigid collar and prolonged hospitalization...
January 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28125522/post-traumatic-spinal-hygroma-causing-cord-compression-in-type-iii-odontoid-fracture-with-vertical-atlanto-axial-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 etio-pathogenesis 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...
January 25, 2017: Spine
https://www.readbyqxmd.com/read/28124724/number-of-positive-radiographic-findings-in-pediatric-trauma-patients
#19
Thomas Ruffing, Tim Danko, Thomas Henzler, Christel Weiss, Alexander Hofmann, Markus Muhm
PURPOSE: Conventional radiography is frequently performed in pediatric patients in whom fractures and dislocations are suspected. However, until now, the rate of positive findings of the most commonly performed radiographic examinations in pediatric patients is unknown. The aim of this study was to evaluate the number of positive findings in the 20 most frequently requested standard radiographic examinations in pediatric patients in a level 1 trauma center systematically. METHODS: A transversal cohort study was conducted at a level 1 trauma center in Germany (2008-2014)...
January 26, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28111622/cruciate-paralysis-in-a-20-year-old-male-with-an-undisplaced-type-iii-odontoid-fracture
#20
Mansukhani Sameer A, Tuteja Sanesh V, Dhar Sanjay B
INTRODUCTION: Cruciate Paralysis is a rare incomplete spinal cord syndrome presenting as brachial diplegia with minimal or no involvement of the lower extremities. It occurs as a result of trauma to the cervical spine and is associated with fractures of the axis and/or atlas. Diagnosis is confirmed on MRI and is managed by treatment of the underlying pathology. Prognosis depends on the extent of spinal cord injury and the exact cause. CASE PRESENTATION: A 20-year-old male presented to the casualty with a history of an injury to the back of the head as a result of a fall...
April 2016: Journal of Orthopaedic Case Reports
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