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Odontoid fracture

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https://www.readbyqxmd.com/read/29783086/biomechanical-comparison-of-cemented-vs-non-cemented-anterior-screw-fixation-in-type-ii-odontoid-fractures-in-the-elderly-a-cadaveric-study
#1
Petr Rehousek, Edward Jenner, James Holton, Marcin Czyz, Lukas Capek, Petr Henys, Marketa Kulvajtova, Martin Krbec, Jiri Skala-Rosenbaum
Background Context Odontoid process fractures are the most common injuries of the cervical spine in the elderly. Anterior screw stabilisation of type 2 odontoid process fractures improves survival and function in these patients but may be complicated by failure of fixation. Purpose To determine whether cement augmentation of a standard anterior screw provides biomechanically superior fixation of type II odontoid fractures in comparison to a non-cemented standard screw. Study design Twenty human cadaveric C2 vertebrae from elderly donors (mean age 83 years) were obtained...
May 18, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29779053/non-union-rate-of-type-ii-and-iii-odontoid-fractures-in-cppd-versus-a-control-population
#2
Aaron Wold, Jonelle Petscavage-Thomas, Eric A Walker
OBJECTIVE: The objective was to determine if there is a significant difference between rates of non-union of type II and III odontoid fractures in patients with calcium pyrophosphate dihydrate deposition (CPPD) compared with a control population. MATERIALS AND METHODS: A 10-year retrospective picture archive and communications system review was performed of 31 CPPD patients and 31 control patients. Imaging studies were reviewed for radiographic or CT evidence of osseous union and complications...
May 19, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29777896/surgical-treatment-for-odontoid-fractures-in-patients-with-long-standing-ankylosing-spondylitis
#3
Jinhao Miao, Yu Chen, Bangke Zhang, Tiefeng Li, Yibing Luo, Lei Shi, Jiangang Shi, Deyu Chen
No abstract text is available yet for this article.
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29755239/type-iii-odontoid-fractures-a-subgroup-analysis-of-complex-high-energy-fractures-treated-with-external-immobilization
#4
Thomas E Niemeier, Adam R Dyas, Sakthivel R Manoharan, Steven M Theiss
Study Design: Retrospective cohort study. Objective: Type III odontoid fractures are classically treated nonoperatively, yet, the current literature on Type III odontoid fractures includes fractures of multiple etiologies and fracture morphologies. We hypothesize that a subgroup of complex, Type III fractures caused by high-energy mechanisms are more likely to fail nonoperative treatment. Materials and Methods: Acute Type III odontoid fractures were identified at a single institution from 2008 to 2015...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29740505/incidence-of-dysphagia-after-odontoid-screw-fixation-of-type-ii-odontoid-fracture-in-the-elderly
#5
Rudy D Marciano, Brian Seaman, Saurabh Sharma, Teresa Wood, Chris Karas, Kailash Narayan
Background: Although surgery may reduce mortality rates from type II odontoid fractures in the elderly population, post-operative dysphagia resulting from screw fixation remains a serious complication. Methods: We retrospectively performed a chart review of patients over 65 years of age who underwent odontoid screw placement for type II odontoid fractures (2009-2014) and sustained post-operative dysphagia. The severity of dysphagia was determined based on the requirements for modified diets, PEG tubes, and prolonged length of stay (LOS), while costs were based upon discharge disposition (e...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29729457/feasibility-of-modified-anterior-odontoid-screw-fixation-analysis-of-a-new-trajectory-using-three-dimensional-simulation-software
#6
Li-Lian Zhang, Qi Chen, Hao-Li Wang, Hua-Zi Xu, Nai-Feng Tian
BACKGROUND: Anterior odontoid screw fixation (AOSF) has been suggested as the optimal treatment for type II and some shallow type III odontoid fractures. However, only the classical surgical trajectory is available; no newer entry points or trajectories have been reported. METHODS: We evaluated the anatomical feasibility of a new trajectory for AOSF using three-dimensional (3-D) screw insertion simulation software (Mimics). Computed tomography (CT) scans of patients (65 males and 59 females) with normal cervical structures were consecutively obtained, and the axes were reconstructed in 3-D by Mimics software...
May 2, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29712534/a-scoping-review-on-health-economics-in-neurosurgery-for-acute-spine-trauma
#7
Brian C F Chan, B Catharine Craven, Julio C Furlan
OBJECTIVE Acute spine trauma (AST) has a relatively low incidence, but it often results in substantial individual impairments and societal economic burden resulting from the associated disability. Given the key role of neurosurgeons in the decision-making regarding operative management of individuals with AST, the authors performed a systematic search with scoping synthesis of relevant literature to review current knowledge regarding the economic burden of AST. METHODS This systematic review with scoping synthesis included original articles reporting cost-effectiveness, cost-utility, cost-benefit, cost-minimization, cost-comparison, and economic analyses related to surgical management of AST, whereby AST is defined as trauma to the spine that may result in spinal cord injury with motor, sensory, and/or autonomic impairment...
May 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29691052/assessment-of-cervical-range-of-motion-in-patients-after-axis-fracture
#8
Andżelina Wolan-Nieroda, Andrzej Maciejczak, Grzegorz Przysada, Adrian Kużdżał, Grzegorz Magoń, Michlina Czarnota, Mariusz Drużbicki, Agnieszka Guzik
BACKGROUND: Surgical treatment of odontoid fractures with posterior C1/C2 fusion always leads to severe limitations in mobility of the cervical spine and head. PURPOSE: To assess the mobility of the cervical spine in patients treated with various surgical methods after an axis body fracture. MATERIAL AND METHODS: A group of 61 subjects receiving surgical treatment in a group of 214 subjects treated for odontoid fractures at one ward of neurosurgery at a regional hospital...
December 6, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29657134/early-mortality-and-morbidity-following-a-type-ii-odontoid-fracture-in-the-elderly
#9
Hassaan Q Sheikh, Michael Athanassacopoulos, Arpan B Doshi, Lee Breakwell, Ashley Cole, Antony Louis Rex Michael, Neil Chiverton
BACKGROUND: We aimed to analyse the rates of early and causes of death in patients aged over 65 years with a type II odontoid fracture. METHODS: A consecutive series of 93 patients with a type II fracture of the odontoid process was retrospectively identified. Data collected included patient demographics, co-morbidities, associated injuries, neurological injury, date of death and cause of death. Mean patient age was 81. Five patients (5%) were treated operatively while the rest were treated in a hard cervical collar...
April 12, 2018: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/29627641/occiput-axis-crossing-translaminar-screw-fixation-technique-using-offset-connectors-an-in-vitro-biomechanical-study
#10
Jiyong Gu, Weiwei Lei, Zong Xin, Yi Wu, Lin Peng, Zhibin Li, Zize Feng, Minchan Zhao, Songtao Qi, Yuntao Lu
OBJECTIVE: Fixation with the axis vertebra (C2) using pedicle screws is commonly used to treat an unstable occipitocervical junction; however, it is accompanied by a risk of vertebral artery injury. The occiput-C2 (OC2) crossing translaminar screw fixation technique may avoid this risk, but rod implantation is difficult. Offset connectors can help facilitate this construct. This study aimed to evaluate the stability of a technique for OC2 crossing translaminar screw fixation using offset connectors (C2LAM + OF) in comparison with other methods...
June 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29626690/traumatic-postero-lateral-c1-c2-dislocation-complicated-with-locked-lateral-mass-and-type-ii-odontoid-fracture-a-5-year-follow-up-a-case-report
#11
Zhu Minyu, Wu Shiyang, Chandoo Suraj, Huang Kelun, Lin Chaowei, Teng Honglin
STUDY DESIGN: case report: Objective: To document our experience in managing a rare complex of traumatic postero-lateral atlantoaxial dislocation combined with locked lateral mass and type II odontoid fracture. SUMMARY OF BACKGROUND DATA: METHOD: A 30 years-old male patient was referred to the author's department. He complained of a decrease in neck range of motion following a traffic accident. Neurological examination was normal. Computed tomography (CT) and open mouth X-ray showed a type II odontoid fracture and a postero-lateral dislocation with laterally locked left lateral mass at the C1-C2 level...
April 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29616823/odontoid-fracture-depicted-on-a-panoramic-radiograph
#12
Galal Omami, Craig S Miller
A traumatic odontoid fracture was depicted incidentally on a panoramic radiograph of a 73-year-old male patient. This brief note sheds light on the importance of following a systematic visual interrogation of panoramic radiographs, ensuring all anatomic structures are carefully assessed and incidental findings are not overlooked.
April 11, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29597016/a-cohort-study-of-the-natural-history-of-odontoid-pseudoarthrosis-managed-non-operatively-in-the-elderly
#13
Jennifer Hong, Rifat Zaman, Shannon Coy, David Pastel, Nathan Simmons, Perry Ball, Sohail Mirza, William Abdu, Adam Pearson, Stuart Lollis
OBJECTIVE: While the primary goal of treatment of type II odontoid fracture is bony union, some advocate continued non-surgical management of minimally symptomatic older patients who have fibrous union or minimal fracture motion. The risk of this strategy is unknown. We reviewed our long-term outcomes following dens nonunion in order to define the natural history of type II odontoid fractures in the elderly managed non-operatively. METHODS: Retrospective chart review of 50 consecutive adults aged 65 or older with type II odontoid fracture initially managed non-surgically from 1998-2012 at a single tertiary care institution was conducted...
March 26, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29543213/-ventral-decompression-techniques-in-patients-with-traumatic-and-non-traumatic-atlanto-axial-dislocations
#14
I S Lvov, A A Grin', M A Nekrasov, A Yu Kordonskiy, A V Sytnik
Compression of the caudal medulla oblongata and ventral portions of the spinal cord is the most dangerous complication of atlanto-axial dislocation (AAD). AIM: The study objective was to improve surgical management of patients with ventral compression of the spinal cord in the setting of AAD of various genesis. MATERIAL AND METHODS: We analyzed treatment outcomes in 250 patients with C1 and C2 injuries and diseases for the period between 2002 and 2016. Persistent ventral compression of the neural structures in the setting of AAD was detected in 34 (13...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29538245/mortality-rates-following-posterior-c1-2-fusion-for-displaced-type-ii-odontoid-fractures-in-octogenarians
#15
Stephen Clark, Alysa Nash, Mark Shasti, Luke Brown, Julio J Jauregui, Katherine Mistretta, Eugene Koh, Kelley Banagan, Steven Ludwig, Daniel Gelb
STUDY DESIGN: Retrospective cohort study OBJECTIVE.: To assess 30-day and one-year mortality rates as well as the most common complications associated with posterior C1-2 fusion in an octogenarian cohort. SUMMARY OF BACKGROUND DATA: Treatment of unstable type II odontoid fractures in elderly patients can present challenges. Recent evidence indicates in patients older than 80 years, posterior C1-2 fusion results in improved survival as compared to other modes of treatment...
March 13, 2018: Spine
https://www.readbyqxmd.com/read/29534386/-surgical-treatment-of-intractable-odontoid-fracture-with-atlantoaxial-dislocation-in-children-with-spinal-cord-injury
#16
W D Liang, Z L Ren, J Sheng, J Wang, Abulizi Yakefu, W B Sheng
Objective: To discuss the surgical treatment and its effectiveness of odontoid fracture complicated with atlantoaxial dislocation in children with spinal cord injury. Methods: From January 2010 to December 2014, 10 cases of children under 14 years old, with intractable odontoid fracture with atlantoaxial dislocation were enrolled. The mean duration between injury and admission was 8.5 d (range 1-30 d). The surgery was performed using posterior reduction and internal fixation or anterior release combined with posterior fixation...
February 27, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29489401/cervical-spine-injury-from-unrecognized-craniocervical-instability-in-severe-pierre-robin-sequence-associated-with-skeletal-dysplasia
#17
Xiao Zhu, Kelly N Evans, Areeg El-Gharbawy, Jonathan Y Lee, Jack E Brooker, Noel Jabbour, Elizabeth C Tyler-Kabara, Suneeta Madan-Khertarpal, Joseph E Losee, Jesse A Goldstein
Pierre Robin Sequence (PRS) can be associated with skeletal dysplasias, presenting with craniocervical instability and devastating spinal injury if unrecognized. The authors present the case of an infant with PRS and a type II collagenopathy who underwent multiple airway-securing procedures requiring spinal manipulation before craniocervical instability was identified. This resulted in severe cervical cord compression due to odontoid fracture and occipitoatlantoaxial instability. This case highlights the importance of early cervical spine imaging and cautious manipulation in infants with PRS and suspected skeletal dysplasia...
May 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29465847/dysphagia-in-the-elderly-following-anterior-cervical-surgery-a-multidisciplinary-approach
#18
C N Osuafor, B Smith, N El-Kininy, C Donegan
Dysphagia is a risk factor for adverse health outcomes like aspiration, recurrent chest infections and malnutrition. Here, we describe a case of an 82-year-old lady who presented with a two-month history of dysphagia after an anterior odontoid screw fixation for a type II odontoid process fracture. This case highlights the importance of a multidisciplinary approach to patient care.
December 18, 2017: Irish Medical Journal
https://www.readbyqxmd.com/read/29456915/short-term-complications-of-anterior-fixation-of-odontoid-fractures
#19
Holt S Cutler, Javier Z Guzman, Nathan J Lee, Parth Kothari, Jun S Kim, John I Shin, Dante M Leven, Samuel K Cho
Study Design: Retrospective study. Objective: Anterior fixation of odontoid fracture has been associated with high morbidity and mortality in small, single institution series. Identifying risk factors may improve risk stratification and highlight factors that could be optimized preoperatively. The objective of this study was to determine the 30-day complication rate following anterior fixation of odontoid fractures and to identify associated risk factors among patients in a large national database...
February 2018: Global Spine Journal
https://www.readbyqxmd.com/read/29455493/-classification-of-upper-cervical-fractures-a-review
#20
REVIEW
Peng-Rong Ouyang, Xi-Jing He, Xuan Cai
Upper cervical fracture-dislocations are series of pathological injuries occurred in occipital, atlas and axis caused by traumatic impact, which often results in severe clinical consequences, such as paraplegia, quadriplegia, and even death. In light of the potential severe clinical outcomes, it is important to define the type of upper cervical fracture-dislocations depending on which the clinician can deal with the disease properly. Owing to its specific anatomical structures, the upper cervical fractures occurr to the unique osseous structures or ligamentous connections always present in predictable patterns...
September 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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