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https://www.readbyqxmd.com/read/29243997/transdural-approach-to-resection-of-retro-odontoid-cysts-in-elderly-patients-report-of-3-cases
#1
Karthik Madhavan, Lee Onn Chieng, Brandon G Gaynor, Allan D Levi
Retro-odontoid cysts that arise from the tectorial membrane are uncommon lesions that can occur in elderly patients. They arise secondary to degenerative changes, including calcium pyrophosphate deposition within the ligaments. Surgical treatment is indicated when these lesions result in intractable pain, instability, and/or myelopathy. Several surgical techniques to treat this condition exist, but the optimal approach in elderly patients with comorbidities remains controversial. Here, the authors present a case series of 3 patients who underwent successful resection of a retro-odontoid lesion performed through a transdural approach...
December 15, 2017: Journal of Neurosurgery. Spine
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
#2
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/29235091/upward-displacement-of-the-odontoid-process-into-the-foramen-magnum-a-paleopathological-case
#3
Paola Saccheri, Enrico Crivellato, Francesco Toso, Luciana Travan
An upward displacement of the odontoid process into the foramen magnum was observed in the skeletal remains of a young male unearthed from a 14th-17th century cemetery in the north-eastern Italy. Examination of skull bone vestiges and CT-SCAN analysis of the axis exhibited a clear-cut contact zone between the odontoid process and the anterior border of the foramen magnum. In addition, the odontoid process appeared backward deviated. Findings suggest a possible diagnosis of basilar impression/invagination. This anomalous contact may cause compression of neural and vascular structures with a multifaceted series of clinical symptoms...
December 13, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29214092/pyogenic-odontoid-osteomyelitis-with-sinus-thrombosis
#4
Rohit Aiyer, Janice Hwang, Edward H Yu
71/F presented with left sided headaches and neck pain with nuchal rigidity progressively worsening over 3 weeks with no other neurologic symptoms. Odontoid osteomyelitis with epidural abscess was discovered on further workup with neuroimaging. Concurrent jugular vein and transverse sinus venous thrombosis was also found and suspected to be secondary to the pyogenic odontoid osteomyelitis. Patient was treated with intravenous antibiotics for the osteomyelitis as well as intravenous heparin for the venous thrombosis...
2017: Case Reports in Radiology
https://www.readbyqxmd.com/read/29203314/endoscopic-transseptal-approach-with-posterior-nasal-spine-removal-a-wide-surgical-corridor-to-the-craniovertebral-junction-and-odontoid-technical-note-and-case-series
#5
Zefferino Rossini, Davide Milani, Federico Nicolosi, Francesco Costa, Giovanni Battista Lasio, Vincenzo Antonio D'Angelo, Maurizio Fornari, Giovanni Colombo
BACKGROUND: Transnasal approach to lesions involving the craniovertebral junction represents a technical challenge because of limited inferior exposure. The authors describe the endoscopic transseptal approach (ETsA) with posterior nasal spine (PNS) removal; this technique can create a wide exposition of the craniovertebral junction increasing the caudal exposure. METHODS: On patients undergoing anterior craniovertebral junction decompression, we calculated the degree of exposure on the sagittal plan through a paraseptal route, an ETsA without and with PNS removal...
December 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29187946/the-endoscopic-endonasal-approach-to-cranio-cervical-junction-the-complete-panel
#6
REVIEW
Nouman Aldahak, Bertram Richter, Joseph Synèse Bemora, Jeffery Thomas Keller, Sebastien Froelich, Khaled Mohamed Abdel Aziz
We aim to establish a complete summary on the Endoscopic Endonasal Approach (EEA) to Cranio Cervical Junction (CCJ): evolution since first description, criteria to predict the feasibility and limitations, anatomical landmarks, indications and biomechanical evaluation after performing the approach. A comprehensive literature search to identify all available literature published between March 2002 and June 2015, the articles were divided into four categories according to their main purpose: 1- surgical technique, 2- anatomical landmarks and limitations, 3- literature reviews to identify main indications, 4- biomechanical studies...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29181341/odontoideum-bone-revealed-by-c1-c2-dislocation-of-the-cervical-spine-during-a-diving-accident
#7
Lassaad Hassini, Mohamed Ali Khalifa, Zeineb Alaya, Mohamed Laaziz Ben Ayeche, Walid Osman, Mourad Mtaoumi
Introduction: Odontoideum bone or the mobile odontoid process is one of the rarest malformations of the cervico-occipital hinge. It exposes to the atlo-axial instability and to the risk of bulbo-medullary compression threatening then the vital and functional prognosis. We report the case of a 16-year-old patient who was the victim of a raod accident resulting in acervical spine injury. Radiological investigation found an odontoideum bone malformation associated with C1C2 dislocation. Case Report: A 16-year-old patient with no medical history had a road accident...
July 2017: Journal of Orthopaedic Case Reports
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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/29057717/craniovertebral-fixation-%C3%A2-a-new-technique-of-occipital-cervical-fixation
#15
Sushil Patkar
BACKGROUND: Craniovertebral instability following transoral odontoid excision is usually treated by posterior occipital-cervical fixation using occipital plate and cervical lateral mass fixation with screw rod construct. A patient previously operated for basilar invagination had postoperative infection of both the transoral wound and the posterior implant site which needed removal of the posterior implant earlier. CLINICAL PRESENTATION: The patient presented with severe neck pain, myelopathy, and chronic discharging sinus in the posterior lower aspect the previous neck surgery wound...
October 23, 2017: Neurological Research
https://www.readbyqxmd.com/read/29057356/anterior-cervical-spine-surgery-associated-complications-in-a-retrospective-case-control-study
#16
REVIEW
Anastasia Tasiou, Theofanis Giannis, Alexandros G Brotis, Ioannis Siasios, Iordanis Georgiadis, Haralampos Gatos, Eleni Tsianaka, Konstantinos Vagkopoulos, Konstantinos Paterakis, Kostas N Fountas
Anterior cervical spine procedures have been associated with satisfactory outcomes. However, the occurrence of troublesome complications, although uncommon, needs to be taken into consideration. The purpose of our study was to assess the actual incidence of anterior cervical spine procedure-associated complications and identify any predisposing factors. A total of 114 patients undergoing anterior cervical procedures over a 6-year period were included in our retrospective, case-control study. The diagnosis was cervical radiculopathy, and/or myelopathy due to degenerative disc disease, cervical spondylosis, or traumatic cervical spine injury...
September 2017: Journal of Spine Surgery (Hong Kong)
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
#17
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/29052813/exploration-for-reliable-radiographic-assessment-method-for-hinge-like-hypermobility-at-atlanto-occipital-joint
#18
Shinjiro Kaneko, Ken Ishii, Kota Watanabe, Takashi Tsuji, Masaya Nakamura, Morio Matsumoto, Yoshiyuki Yato, Takashi Asazuma
PURPOSE: Hinge-like hyper-mobility is occasionally observed at the atlanto-occipital (O-C1) joint. However, it has not been clear if this kind of hinge-like hyper-mobility at the O-C1 joint should be regarded as "pathologic", or referred to as "instability". To solve this issue, we aimed to establish a reliable radiographic assessment method for this specific type of O-C1 instability and figure out the "standard value" for the range of motion (ROM) of the O-C1 joint. METHODS: To figure out the standard range of the O-C1 angle, we acquired magnetic resonance imaging (MRI) sagittal views of the cervical spine for 157 healthy volunteers [average: 37...
October 20, 2017: European Spine Journal
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
#19
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/29021684/use-of-c2-vertebroplasty-and-stereotactic-radiosurgery-for-treatment-of-lytic-metastasis-of-the-odontoid-process
#20
Casey Alicen Hribar, Deb A Bhowmick
Improvements in cancer therapy have led to increased patient survival times in spite of metastatic spinal disease in many forms of cancer. Conventional treatment methods often employ radiotherapy with or without surgery depending on the neurological status, mechanical instability, and the extent of tumor. Percutaneous vertebroplasty as well as stereotactic radiosurgery (SRS) have arisen as common modalities of treatment of spinal metastasis in which neurological compromise or spinal instability and deformity is not of significant concern...
July 2017: Journal of Craniovertebral Junction and Spine
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