keyword
MENU ▼
Read by QxMD icon Read
search

Odontoid

keyword
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
#1
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
#2
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/28186477/bilateral-sagittal-split-mandibular-osteotomies-for-enhanced-exposure-of-the-anterior-cervical-spine-in-children-technical-note
#3
Michael Karsy, Neal Moores, Faizi Siddiqi, Douglas L Brockmeyer, Robert J Bollo
The bilateral sagittal split mandibular osteotomy (BSSMO), a common maxillofacial technique for expanding the oropharynx during treatment of micrognathia, is a rarely employed but useful adjunct to improve surgical access to the ventral cervical spine in children. Specifically, it provides enhanced exposure of the craniocervical junction in the context of midface hypoplasia, and of the subaxial cervical spine in children with severe kyphosis. The authors describe their technique for BSSMO and evaluate long-term outcomes in patients...
February 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28182084/c2-fracture-subtypes-incidence-and-treatment-allocation-change-with-age-a-retrospective-cohort-study-of-233-consecutive-cases
#4
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/28176269/a-new-superficial-landmark-for-the-odontoid-process-a-cadaveric-study
#5
Christian Fisahn, Michael J Montalbano, Joe Iwanaga, Marc Moisi, Marios Loukas, Jens R Chapman, Rod J Oskouian, R Shane Tubbs
When image guidance is not available or when there is a need to confirm the findings of such technology, superficial landmarks can still play a role in providing surgeons with estimations of the position of deeper anatomical structures. To our knowledge, surface landmarks for the position of the odontoid process have not been investigated. We have therefore performed an anatomical study to investigate such a landmark. One-centimeter metallic rods were placed on the philtrum of the upper lip of 20 cadaveric head specimens...
February 7, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/28175376/odontoid-fractures-and-the-silver-tsunami-evidence-and-practice-in-the-very-elderly
#6
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/28163511/use-of-frameless-stereotactic-neuronavigation-and-o-arm-for-transoral-transpalatal-odontoidectomy-to-treat-a-very-high-basilar-invagination
#7
Skanda Moorthy, Amol Raheja, Deepak Agrawal
Frameless stereotactic neuronavigation system has been in wide use since many years for precise localization of cranial tumors and navigation for spinal instrumentation. We present its usage in the localization of odontoid process in a very high basilar invagination for a transoral transpalatal resection of the same. We discuss the technical aspects of assembly of neuronavigation system, O-arm and Mayfield head frame on Allen spine system to achieve precise and accurate localization of high riding odontoid process through an extremely narrow operative corridor...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28151846/osteomyelitis-of-the-odontoid-process-in-children-two-cases-and-review-of-the-literature
#8
Asael Lubotzky, Ruth Cytter Kuint, Eliyahu Raccah, Orli Megged
OBJECTIVE: To report clinical, laboratory, and radiologic manifestations in two infants with osteomyelitis of the odontoid process (dens). BACKGROUND: Vertebral osteomyelitis is uncommon, and osteomyelitis of the dens has rarely been reported in the pediatric population. METHODS: The medical records of two infants diagnosed with dens osteomyelitis were reviewed. RESULTS: Both infants had fever which resolved spontaneously before admission...
January 31, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28144584/teriparatide-anabolic-therapy-as-potential-treatment-of-type-ii-dens-non-union-fractures
#9
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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28107235/an-experimental-biomechanical-study-on-artificial-atlantoodontoid-joint-replacement-in-dogs
#13
Quanjin Zang, Yanming Liu, Dengfeng Wang, Haopeng Li, Pinglin Yang, Dong Wang, Xijing He
STUDY DESIGN: This study tested the biomechanics of artificial atlantoodontoid joint replacement (AAOJR) in a dog model. Dogs were divided into the artificial AAOJR group (n=10), the decompression group (n=10), and the healthy control group (n=10) using a random number table. OBJECTIVE: To evaluate whether the use of AAOJR for repair of atlantoaxial instability retains rotation and restores stability. SUMMARY OF BACKGROUND DATA: Atlantoaxial instability is characterized by excessive movement or laxity at the junction between the atlas (C1) and axis (C2)...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28076601/retrospective-analysis-of-a-case-series-of-patients-with-traumatic-injuries-to-the-craniocervical-junction
#14
Luiz Adriano Esteves, Andrei Fernandes Joaquim, Helder Tedeschi
Objective: To evaluate the correlation between the treatment, the characteristics of the lesions and the clinical outcome of patients with traumatic injuries to the craniocervical junction. Methods: This was a retrospective study of patients treated conservatively or surgically between 2010 and 2013 with complete data sets. Results: We analyzed 37 patients, 73% were men with mean age of 41.7 years. Of these, 32% were submitted to initial surgical treatment and 68% received conservative treatment...
October 2016: Einstein
https://www.readbyqxmd.com/read/28072744/posterior-arthrodesis-of-c1-c3-for-the-stabilization-of-multiple-unstable-upper-cervical-fractures-with-spinal-cord-compromise-a-case-report-and-literature-review
#15
Deting Xue, Qixin Chen, Gang Chen, Wenhai Zhuo, Fangcai Li
BACKGROUND: Multiple fractures of the atlas and axis are rare. The management of multiple fragment axis fractures and unstable atlas fractures is still challenging for the spinal surgeon. There are no published reports of similar fractures with 3-part fracture of axis associated with an unstable atlas fracture. CASE SUMMARY: We present a patient with concurrent axis and atlas fractures, which have not been reported. The patient suffered hyperextension injury with neck pain and numbness of the bilateral upper extremity associated with weakness after a 2-m fall...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28054384/computational-anatomy-of-the-dens-axis-evaluated-by-quantitative-computed-tomography-implications-for-anterior-screw-fixation
#16
Dominic Gehweiler, Dirk Wähnert, Norbert Meier, Maarten Spruit, Michael Johannes Raschke, Robert Geoff Richards, Hansrudi Noser, Lukas Kamer
The surgical fracture fixation of the odontoid process (dens) of the second cervical vertebra (C2/axis) is a challenging procedure, particularly in elderly patients affected by bone loss, and includes screw positioning close to vital structures. The aim of this study was to provide an extended anatomical knowledge of C2, the bone mass distribution and bone loss, and to understand the implications for anterior screw fixation. 120 standard clinical quantitative computed tomography (QCT) scans of the intact cervical spine from 60 female and 60 male European patients, aged 18-90 years, were used to compute a three-dimensional statistical model and an averaged bone mass model of C2...
January 5, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28053266/predictors-of-mortality-following-conservatively-managed-fractures-of-the-odontoid-in-elderly-patients
#17
S Bajada, A Ved, A G Dudhniwala, S Ahuja
AIMS: Rates of mortality as high as 25% to 30% have been described following fractures of the odontoid in the elderly population. The aim of this study was to examine whether easily identifiable variables present on admission are associated with mortality. PATIENTS AND METHODS: A consecutive series of 83 elderly patients with a fracture of the odontoid following a low-impact injury was identified retrospectively. Data that were collected included demographics, past medical history and the results of blood tests on admission...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28050699/the-challenging-fractures-of-the-odontoid-process-a-review-of-the-classification-schemes
#18
REVIEW
Dimitrios S Korres, Dimitrios G Chytas, Konstantinos N Markatos, Nicolaos E Efstathopoulos, Vasileios S Nikolaou
Fractures of the odontoid process seem to have an unclear and not well-understood behavior. This is well demonstrated in the literature as there is a disagreement in many fields, including the patterns of fractures, the percentage of pseudarthrosis or the appropriate treatment that is required. This situation makes the fracture itself a "challenging" one. Indeed, despite the existence of extensive literature, there are still many unresolved problems concerning these fractures. We recognize six main classification schemes of the odontoid process fractures which clearly demonstrate the presence of differences but, also, the disadvantages that these classifications are related to...
January 3, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28048882/su-f-p-25-dosimetric-changes-of-brainstem-caused-by-weight-loss-during-intensity-modulated-radiation-therapy-for-nasopharyngeal-carcinoma
#19
W Hu, C Yu, Y Cai, X Zhou, W Wang, H Yang
PURPOSE: To explore dosimetric effects of brainstem (BS) caused by weight loss during the course of intensity-modulated radiation therapy (IMRT) for nasopharyngeal carcinoma (NPC). METHODS: Seventy-seven patients who were diagnosed with NPC by pathology biopsy have been enrolled. Every patients should receive weight measurement weekly and three times of computed tomography (CT) scans and replanning, at the 15th and 25th fraction during the treatment, respectively...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028444/commentary-on-the-management-of-type-ii-odontoid-process-fractures-in-octogenarians-article-by-graffeo-et-al-and-editorial-by-falavigna-j-neurosurgery-spine-august-19-2016
#20
Nancy E Epstein
BACKGROUND: Establishing a clear treatment paradigm for octogenarians with type II odontoid fractures in hampered by a literature replete with level III articles. METHODS: In the study by Graffeo et al., the authors evaluated 111 patients over the age of 79 (average age: 87) with type II odontoid fractures undergoing nonoperative (94 patients) vs. operative intervention (17 total; 15 posterior and 2 anterior). They studied multiple variables and utilized several scales [abbreviated injury scale (AIS), injury severity score (ISS), and the Glasgow coma scale (GCS)] to determine the outcomes of nonoperative vs...
2016: Surgical Neurology International
keyword
keyword
30778
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"