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https://read.qxmd.com/read/30763740/spinal-kyphoscoliosis-associated-with-chiari-formation-and-syringomyelia-recovery-following-atlantoaxial-fixation-a-preliminary-report-and-early-results-based-on-experience-with-11surgically-treated-cases
#1
Atul Goel, Ravikiran Vutha, Abhidha Shah, Pralhad Dharurkar, Neha Jadhav, Dikpal Jadhav
OBJECTIVE: Immediate postoperative and early clinical outcome of treatment of spinal kyphoscoliosis associated with Chiari formation and syringomyelia and treated by atlantoaxial fixation is described. MATERIAL AND METHODS: During the period April 2016 to March 2018, 11patients having spinal kyphosciolosis (SKS) as a major presenting symptom in association with Chiari formation and syringomyelia were surgically treated and are analysed retrospectively. There were 6 males and 5 females and their ages ranged from 11 to 17 years (average 14 years)...
February 11, 2019: World Neurosurgery
https://read.qxmd.com/read/30761421/preclinical-evaluation-of-a-novel-anterior-non-fusion-fixation-device-for-atlantoaxial-instability-an-in-vivo-comparison-study-in-a-canine-model
#2
Xuan Cai, Xiaoqing Yi, Haopeng Li, Xijing He
PURPOSE: The Anterior Atlantoaxial Non-Fusion Fixation System (AANFS) was a novel motion preservation device for atlantoaxial instability to replace traditional fusion techniques. The purpose of this in vivo study was to evaluate the clinical features and biomechanical properties of this new device in a canine model by comparing it with a conventional method. METHODS: Eighteen adult male canines were randomly divided into group 1, which received the AANFS replacement, group 2 which received the Harms rigid fixation procedures, and group 3, which served as the control group...
February 13, 2019: European Spine Journal
https://read.qxmd.com/read/30758747/a-modified-microsurgical-interfacet-release-and-direct-distraction-technique-for-management-of-congenital-atlantoaxial-dislocation-technical-note
#3
GuoSong Shang, Tao Fan, Zhe Hou, Cong Liang, YinQian Wang, XinGang Zhao, Wayne Fan
Various techniques have been used for management of congenital atlantoaxial dislocation. Recently, the reduction of atlantoaxial dislocation through a single posterior approach has attracted more and more attention. Here, we present a modified technique including direct interfacet release and distraction between C1 and C2 by a specially designed distractor, posterior internal fixation and bone graft fusion. The illustrated technique was performed in 15 consecutive patients, and the outcomes were recorded and analyzed...
February 13, 2019: Neurosurgical Review
https://read.qxmd.com/read/30724055/atlantoaxial-instability-management-in-down-syndrome
#4
Alfio Spina, Aleandro Rocca, Nicola Boari, Filippo Gagliardi, Michele Bailo, Pietro Mortini
No abstract text is available yet for this article.
February 4, 2019: Journal of Neurosurgical Sciences
https://read.qxmd.com/read/30714014/anterior-atlantoaxial-subluxation-with-down-syndrome-and-arthritis-case-report
#5
Carlos Andres Ferreira Prada, Maria Gabriela Sanchez Paez, Andreina Martinez Amado
Down syndrome (DS) occurs when an individual has a full or partial extra copy of chromosome 21 and is the most common of all malformation syndromes. Associating with numerous pathologies like anterior atlantoaxial subluxation (AAAS) which is an increase in the space between the anterior arch of the first cervical vertebra (C1) and the odontoid process of the second vertebra (C2), most of the time its asymptomatic, only 1-2% to all the 30% who may have the AAAS and DS develop clinical symptoms. In this occasion, we present the case of a patient with SD and Juvenile chronic arthritis (JCA) who has atlantoaxial subluxation of approximately 11mm, basilar impression and platybasia with severe medullary compression in 2 points, requiring surgical management by the Neurological Surgery Service in Bucaramanga-Colombia...
December 2018: Journal of Spine Surgery (Hong Kong)
https://read.qxmd.com/read/30714004/clinical-and-radiological-outcomes-of-image-guided-posterior-c1-c2-fixation-for-atlantoaxial-osteoarthritis-aaoa
#6
Mitchell Fung, Ellen Frydenberg, Leslie Barnsley, Joga Chaganti, Timothy Steel
Background: Atlantoaxial (C1-C2) osteoarthritis (AAOA) causes severe suboccipital pain exacerbated by lateral rotation. The pain is usually progressive and resistant to conservative therapy. Posterior fusion surgery is performed to stabilise the C1-C2 segment. This is the first Australian study reporting the outcome of posterior atlantoaxial fixation including hybrid fixations performed for AAOA. Methods: All patients who underwent posterior atlantoaxial fixation surgery for AAOA from 2005 to 2015 at our institutions were enrolled (N=23)...
December 2018: Journal of Spine Surgery (Hong Kong)
https://read.qxmd.com/read/30711657/does-additional-bone-grafting-of-atlantoaxial-joint-increase-the-bone-fusion-rate-of-iliac-crest-autograft-in-posterior-occipitocervical-fusion-a-retrospective-controlled-study-with-a-2-year-follow-up
#7
Jun-Song Yang, Hao Chen, Lei Chu, Peng Liu, Liang Yan, Tuan-Jiang Liu, Fang Tian, Jia-Nan Zhang, Ding-Jun Hao
No abstract text is available yet for this article.
January 31, 2019: World Neurosurgery
https://read.qxmd.com/read/30688207/utilization-of-spinal-intra-operative-three-dimensional-navigation-by-canadian-surgeons-and-trainees-a-population-based-time-trend-study
#8
Daipayan Guha, Ali Moghaddamjou, Zaneen H Jiwani, Naif M Alotaibi, Michael G Fehlings, Todd G Mainprize, Albert Yee, Victor X D Yang
BACKGROUND: Computer-assisted navigation (CAN) improves the accuracy of spinal instrumentation in vertebral fractures and degenerative spine disease; however, it is not widely adopted because of lack of training, high capital costs, workflow hindrances, and accuracy concerns. We characterize shifts in the use of spinal CAN over time and across disciplines in a single-payer health system, and assess the impact of intra-operative CAN on trainee proficiency across Canada. METHODS: A prospectively maintained Ontario database of patients undergoing spinal instrumentation from 2005 to 2014 was reviewed retrospectively...
January 2019: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://read.qxmd.com/read/30684938/odontoid-cervical-gout-causing-atlantoaxial-instability-case-report
#9
Justin Slavin, Marcello DiStasio, Paul F Dellaripa, Michael Groff
The authors present a case report of a patient discovered to have a rotatory subluxation of the C1-2 joint and a large retroodontoid pannus with an enhancing lesion in the odontoid process eventually proving to be caused by gout. This patient represented a diagnostic conundrum as she had known prior diagnoses of not only gout but also sarcoidosis and possible rheumatoid arthritis, and was in the demographic range where concern for an oncological process cannot fully be ruled out. Because she presented with signs and symptoms of atlantoaxial instability, she required posterior stabilization to reduce the rotatory subluxation and to stabilize the C1-2 instability...
January 25, 2019: Journal of Neurosurgery. Spine
https://read.qxmd.com/read/30677764/dynamic-mri-in-the-evaluation-of-atlantoaxial-stability-in-pediatric-down-syndrome-patients
#10
Albert Tu, Edward Melamed, Mark D Krieger
BACKGROUND/AIMS: Down syndrome is the most common inherited disorder. Some patients develop atlantoaxial instability. Existing screening guidelines were developed prior to availability of MRI. We present predictors for deficit using dynamic MRI of the craniocervical junction. METHODS: A retrospective review of Down syndrome patients from 2001 to 2015 was carried out. Patients were considered symptomatic if they had clinical deficits or signal change on MRI. Measurements were taken at the atlantoaxial junction and structural abnormalities noted...
January 24, 2019: Pediatric Neurosurgery
https://read.qxmd.com/read/30669822/influence-of-atlantoaxial-fusion-on-sagittal-alignment-of-the-occipitocervical-and-subaxial-spines-in-os-odontoideum-with-atlantoaxial-instability
#11
Byung-Wan Choi, Jong-Beom Park, Jong-Won Kang, Do-Gyun Kim, Han Chang
Study Design: Retrospective case analysis. Purpose: We hypothesized that larger the C1-C2 fusion angle, greater the severity of the sagittal malalignment of C0-C1 and C2- C7. Overview of Literature: In our experience, instances of sagittal malalignment occur at C0-C1 and C2-C7 following atlantoaxial fusion in patients with Os odontoideum (OO). Methods: We assessed 21 patients who achieved solid atlantoaxial fusion for reducible atlantoaxial instability secondary to OO...
January 24, 2019: Asian Spine Journal
https://read.qxmd.com/read/30660225/clinical-manifestations-and-surgical-management-of-spinal-lesions-in-patients-with-mucopolysaccharidosis-a-report-of-52-cases
#12
Rodrigo G Remondino, Carlos A Tello, Mariano Noel, Alejandra Francheri Wilson, Eduardo Galaretto, Ernesto Bersusky, Lucas Piantoni
STUDY DESIGN: Descriptive retrospective cohort of 52 pediatric patients with mucopolysaccharidosis (MPS) and spinal cord disease and surgical outcomes in a reference hospital. OBJECTIVES: To describe clinical manifestations and surgical management and outcomes of spinal lesions. METHODS: All medical records of 52 patients with mucopolysaccharidosis (I, II, III, IV, and VI) diagnosed between 1992 and 2011 were identified and followed at a single spine center of a pediatric hospital...
March 2019: Spine Deformity
https://read.qxmd.com/read/30653912/the-transspinal-canal-screwing-technique-for-atlantoaxial-anomalies-a-technical-note-and-2-case-reports
#13
Kento Takebayashi, Motoo Kubota, Masahito Yuzurihara, Shigekuni Tachibana, Takakazu Kawamata
Introduction: It is difficult to treat atlanto-axial instability in cases with high riding vertebral artery or anomalies of craniocervical junction. We report two successful cases with trans-spinal canal screwing technique because of difficulty to perform conventional fixation methods. Case presentation. Case1: A 78-year-old female suffered from progressive myelopathy due to severe spinal cord compression with congenital anomaly of craniovertebral junction. Bilateral trans-spinal canal screws from axis body with spondylolisthesis to dens were inserted by retracting dural sac medially after foramen magnum decompression and cervical laminoplasty...
October 2, 2018: Neurospine
https://read.qxmd.com/read/30644258/-a-strategy-of-combining-posterior-occipitocervical-angle-with-occipital-c-2-angle-for-adjustment-of-occipitocervical-fixation-angle-in-posterior-instrumented-occipitocervical-fusion
#14
Guangzhou Li, Hao Liu, Chen Ding, Yi Yang, Yang Meng, Yuchen Duan, Hua Chen, Ying Hong
Objective: To assess the application and the effectiveness of a strategy of combining posterior occipitocervical angle (POCA) with occipital-C 2 (O-C 2 ) angle for adjustment of occipitocervical fixation angle in posterior instrumented occipitocervical fusion. Methods: The clinical data of 22 patients undergoing posterior instrumented occipitocervical fusions between March 2013 and January 2016 were retrospectively analysed, and all patients were performed by using a strategy combining with POCA and O-C 2 angle for adjustment of occipitocervical fixation angle...
January 1, 2019: Chinese Journal of Reparative and Reconstructive Surgery
https://read.qxmd.com/read/30642744/corrigendum-to-reoperation-for-symptomatic-nonunions-in-atlantoaxial-c1-c2-fusions-with-and-without-bone-morphogenetic-protein-a-cohort-of-108-patients-with-2-years-follow-up-world-neurosurgery-121-2019-e458-e466
#15
Kern H Guppy, Darrin J Lee, Jessica Harris, Harsimran S Brara
No abstract text is available yet for this article.
January 11, 2019: World Neurosurgery
https://read.qxmd.com/read/30627341/grisel-syndrome-presenting-as-hemiplegia-in-a-patient-with-multifocal-staphylococcal-sepsis
#16
Vincent L Mkochi, Nyengo Mkandawire
Introduction: Grisel syndrome is a non-traumatic rotary subluxation of C1 on C2 (atlantoaxial subluxation). It is a rare condition predominantly described in paediatric population with previous history of upper respiratory infections orotolaryngeal procedures. The diagnosis is established by the association of clinical and radiologic findings4,6.We report a case of 15-year old boy with Grisel syndrome accompanying multifocal sepsis (pericarditis, septic polyarthritis, pneumonia and pharangytis ), treated surgically - occipital cervical fusion using struts of iliac crest tri-cortical graft wired to the occiput and C3 and C4...
June 2018: Malawi Medical Journal: the Journal of Medical Association of Malawi
https://read.qxmd.com/read/30626810/atlantoaxial-rotatory-fixation
#17
Tsuneaki Kenzaka
No abstract text is available yet for this article.
January 10, 2019: Internal Medicine
https://read.qxmd.com/read/30608389/the-managment-of-cervical-spine-abnormalities-in-children-with-spondyloepiphyseal-dysplasia-congenita-observational-study
#18
Ali Al Kaissi, Sergey Ryabykh, Olga M Pavlova, Polina Ochirova, Vladimir Kenis, Farid Ben Chehida, Rudolf Ganger, Franz Grill, Susanne Gerit Kircher
Spondyloepiphyseal dysplasia congenita (SEDC) is an autosomal dominant disorder, characterized by disproportionate dwarfism with short spine, short neck associated with variable degrees of coxa vara. Cervical cord compression is the most hazardous skeletal deformity in patients with SEDC which requires special attention and management.Ten patients with the clinical and the radiographic phenotypes of spondyloepiphyseal dysplasia congenita have been recognized and the genotype was compatible with single base substitutions, deletions or duplication of part of the COL2A1 gene (6 patients out of ten have been sequenced)...
January 2019: Medicine (Baltimore)
https://read.qxmd.com/read/30608387/the-effectiveness-and-safety-of-3-dimensional-printed-composite-guide-plate-for-atlantoaxial-pedicle-screw-a-retrospective-study
#19
Fei Wang, Chang-Hong Li, Zhi-Bin Liu, Zhang-Jian Hua, Yong-Jin He, Jun Liu, Yan-Xiong Liu, Xiao-Qian Dang
This study aims to evaluate the effectiveness and safety of the application of a 3-dimensional (3D)-printed composite guide plate for atlantoaxial pedicle screw.This was a retrospective study. A total of 43 atlantoaxial dislocation patients admitted in our hospital between January 2014 and October 2016 were retrospectively analyzed. According to the different methods of operation, patients were divided into 2 groups: 3D-printed plate group (nā€Š=ā€Š19) and traditional fixation group (nā€Š=ā€Š24). Placement time, operation duration, fluoroscopy number, intraoperative bleeding volume, and the neck and shoulder pain visual analog scale and Japanese Orthopaedic Association cervical nerve function scores were compared between pre- and postoperation...
January 2019: Medicine (Baltimore)
https://read.qxmd.com/read/30604297/effectiveness-of-posterior-reduction-and-fixation-in-atlantoaxial-dislocation-a-retrospective-cohort-study-of-135-patients-with-a-treatment-algorithm-proposal
#20
Jian Guan, Zan Chen, Hao Wu, Qingyu Yao, Qu Wang, Can Zhang, Tengfei Qi, Kai Wang, Wanru Duan, Jun Gao, Yongning Li, Fengzeng Jian
PURPOSE: Surgical procedures on atlantoaxial dislocation remain controversial. The aim of this observational retrospective study was to investigate the treatment algorithm of surgical procedures. METHODS: According to CT and intraoperative evaluation during direct posterior reduction, 135 AAD cases were categorized into three groups: Group I: reducible dislocation; Group II: irreducible dislocation (Group IIa: effective decompression achieved after posterior reduction; Group IIb: no effective decompression after posterior reduction); and Group III: fixed dislocation...
January 2, 2019: European Spine Journal
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