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Basilar Invagination

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https://www.readbyqxmd.com/read/28362924/in-reply-distraction-compression-extension-and-reduction-combined-with-joint-remodeling-and-extra-articular-distraction-description-of-2-new-modifications-for-its-application-in-basilar-invagination-and-atlantoaxial-dislocation-prospective-study-in-79-cases
#1
https://www.readbyqxmd.com/read/28362916/letter-distraction-compression-extension-and-reduction-combined-with-joint-remodeling-and-extra-articular-distraction-description-of-2-new-modifications-for-its-application-in-basilar-invagination-and-atlantoaxial-dislocation-prospective-study-in-79-cases
#2
https://www.readbyqxmd.com/read/28361020/role-of-dynamic-computed-tomography-scans-in-patients-with-congenital-craniovertebral-junction-malformations
#3
Otávio Turolo da Silva, Enrico Ghizoni, Helder Tedeschi, Andrei Fernandes Joaquim
AIM: To evaluate the role of dynamic computed tomography (CT) scan imaging in diagnosing craniovertebral junction (CVJ) instability in patients with congenital CVJ malformations. METHODS: Patients with symptomatic congenital CVJ malformations who underwent posterior fossa decompression and had a preoperative dynamic CT scan in flexion and extended position were included in this study. Measurements of the following craniometrical parameters were taken in flexed and extended neck position: Atlanto-dental interval (ADI), distance of the odontoid tip to the Chamberlain's line, and the clivus-canal angle (CCA)...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28279770/transoral-decompression-and-anterior-stabilization-of-atlantoaxial-joint-in-patients-with-basilar-impression-and-chiari-malformation-type-i-a-technical-report-2-clinical-cases
#4
Alexey Nikolaevich Shkarubo, Alexander Alekseevich Kuleshov, Ilia Valerievich Chernov, Marchel Stepanovich Vetrile
OBJECT: presentation of clinical cases involving successful anterior stabilization of the C1-C2 segment in patients with invaginated C2 odontoid process and Chiari malformation type I. STUDY DESIGN: clinical case description. RESULTS: two patients with C2 odontoid processes invagination and Chiari malformation type I were surgically treated using the transoral approach. In both cases, anterior decompression of the upper cervical region was performed, followed by anterior stabilization of the C1-C2 segment...
March 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28220607/neurological-and-spinal-manifestations-of-the-ehlers-danlos-syndromes
#5
Fraser C Henderson, Claudiu Austin, Edward Benzel, Paolo Bolognese, Richard Ellenbogen, Clair A Francomano, Candace Ireton, Petra Klinge, Myles Koby, Donlin Long, Sunil Patel, Eric L Singman, Nicol C Voermans
The Ehlers-Danlos syndromes (EDS) are a heterogeneous group of heritable connective tissue disorders characterized by joint hypermobility, skin extensibility, and tissue fragility. This communication briefly reports upon the neurological manifestations that arise including the weakness of the ligaments of the craniocervical junction and spine, early disc degeneration, and the weakness of the epineurium and perineurium surrounding peripheral nerves. Entrapment, deformation, and biophysical deformative stresses exerted upon the nervous system may alter gene expression, neuronal function and phenotypic expression...
February 21, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
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
#6
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/28155678/compression-distraction-reduction-surgical-verification-and-optimization-to-treat-the-basilar-invagination-and-atlantoaxial-dislocation-a-finite-element-analysis
#7
Xuefeng Bo, Weida Wang, Zan Chen, Zhicheng Liu
BACKGROUND: Basilar invagination (BI) combined with atlantoaxial dislocation (AAD) leads to foramen magnum stenosis and medullary spinal cord compression, causing nerve dysfunction. The purpose of the surgery is to remove the bony compression at brainstem ventral side and fix the unstable spinal segment and make it fused stably. Occipital cervical internal fixation system that simultaneously reduces atlantoaxial horizontal and vertical dislocation are established. We propose here a new compression-distraction reduction (CDR) technique...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28120056/atlantoaxial-joint-distraction-with-a-new-expandable-device-for-the-treatment-of-basilar-invagination-with-preservation-of-the-c2-nerve-root-a-cadaveric-anatomical-study
#8
Filippo Maria Polli, Sokol Trungu, Massimo Miscusi, Stefano Forcato, Massimiliano Visocchi, Antonino Raco
BACKGROUND: Atlantoaxial joint distraction has been advocated for the decompression of the brain stem in patients affected by basilar invagination, avoiding direct transoral decompression. This technique requires C2 ganglion resection and it is often impossible to perform due to the peculiar bony anatomy. We describe a cadaveric anatomical study supporting the feasibility of C1-C2 distraction performed with an expandable device, allowing easier insertion of the tool and preservation of the C2 nerve root...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28087434/bone-grafting-of-atlantoaxial-joints-and-occipitocervical-or-atlantoaxial-fusion-for-the-reduction-and-fixation-of-basilar-invagination-with-atlantoaxial-dislocation-by-a-posterior-approach-a-preliminary-study
#9
Xin He, Yibin Meng, Jianan Zhang, Yunfei Hang, Junsong Yang, Qining Wu, Dingjun Hao
BACKGROUND: Basilar invagination (BI) with atlantoaxial dislocation (AAD) is a complex disease to manage. We have developed a new technique of bone grafting the atlantoaxial joints and occipitocervical fusion using a posterior approach for the reduction and fixation of BI with AAD with complete retention of the C2 nerve root. METHODS: Thirty-two patients underwent bone grafting of the atlantoaxial joints and occipitocervical fusion for the reduction and fixation of BI with AAD by the posterior approach in our department between January 2015 and February 2016...
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27916724/use-of-a-c1-c2-facet-spacer-to-treat-atlantoaxial-instability-and-basilar-invagination-associated-with-rheumatoid-arthritis
#10
Jin-Young Lee, Soo-Bin Im, Je-Hoon Jeong
BACKGROUND: Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disease that often affects the craniovertebral junction. RA is associated with atlantoaxial instability and basilar invagination; the detailed presentations vary. Surgical treatment of atlantoaxial instability and basilar invagination caused by RA is challenging due to anatomic complexity and poor bone quality. The prevailing procedure is posterior occipitocervical fixation after transoral decompression or posterior decompression followed by occipitocervical fixation...
February 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27890751/atlantoaxial-fixation-for-basilar-invagination-without-obvious-atlantoaxial-instability-group-b-basilar-invagination-outcome-analysis-of-63-surgically-treated-cases
#11
Atul Goel, Prashant Sathe, Abhidha Shah
BACKGROUND: We discuss the rationale of surgical treatment of group B basilar invagination by atlantoaxial facet joint stabilization and segmental arthrodesis. METHODS: From January 2010 to April 2016, 63 patients with group B basilar invagination were surgically treated. All patients had varying degree of myelopathy-related functional disability. Fifty-two patients had both Chiari malformation and syringomyelia. All patients were treated by atlantoaxial plate and screw fixation with the techniques described by us in 1994 and 2004...
March 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27879507/pedicle-screw-combined-with-lateral-mass-screw-fixation-in-the-treatment-of-basilar-invagination-and-congenital-c2-c3-fusion
#12
Shenglin Wang, Chao Wang, Huijie Leng, Weidong Zhao, Ming Yan, Haitao Zhou
STUDY DESIGN: Clinical evaluation of a surgical fixation technique featuring combined use of pedicle screw and lateral mass screw (LMS). OBJECTIVE: Introduction of a novel technique for the treatment of congenital C2-C3 fusion and basilar invagination (BI). SUMMARY OF BACKGROUND: Posterior occipitocervical fixation using C2 pedicle screw was widely used for BI. However, in cases where BI is concurrent with congenital C2-C3 fusion, the C2 pedicles tend to be thinner than that in normal population and hence more likely to fail...
December 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27869624/surgical-outcome-and-prognostic-analysis-of-transoral-atlantoaxial-reduction-plate-system-for-basilar-invagination-a-voxel-based-morphometry-study
#13
Gejin Wei, Chenglong Shi, Zhiyun Wang, Hong Xia, Qingshui Yin, Zenghui Wu
BACKGROUND: The use of a transoral atlantoaxial reduction plate (TARP) system is an effective surgical approach for the treatment of basilar invagination. With the aim of improving the therapeutic efficacy of the TARP operation, we conducted a voxel-based morphometric study to quantitatively investigate the descent of the odontoid process and craniocervical volume changes. METHODS: We enrolled 20 patients with basilar invagination who underwent a TARP procedure...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27858398/occipital-condyle-c1-complex-screw-for-fixation-of-basilar-invagination-patients-with-atlas-assimilation
#14
Kazim Yigitkanli, Serkan Simsek
No abstract text is available yet for this article.
October 10, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27858394/occipital-condyle-c1-complex-screw-for-fixation-of-basilar-invagination-patients-with-atlas-assimilation
#15
Serkan Simsek, Kazim Yigitkanli
No abstract text is available yet for this article.
October 2, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27792108/efficacy-of-intraoperative-neurophysiologic-monitoring-for-pediatric-cervical-spine-surgery
#16
Daniel G Tobert, Michael P Glotzbecker, M Timothy Hresko, Lawrence I Karlin, Mark R Proctor, John B Emans, Patricia E Miller, Daniel J Hedequist
STUDY DESIGN: Clinical case series OBJECTIVE.: To investigate the efficacy of intraoperative neuromonitoring in pediatric cervical spine surgery SUMMARY OF BACKGROUND DATA.: Intraoperative neuromonitoring (IONM) consisting of somatosensory evoked potentials (SSEP) and transcranial motor evoked potentials (tcMEP) has been shown to effectively prevent permaneny neurologic injury in deformity surgery. The role of IONM during pediatric cervical spine surgery is not well documented. Advances in cervical spine instrumentation have expanded the surgical options in pediatric populations...
October 25, 2016: Spine
https://www.readbyqxmd.com/read/27776367/transoral-atlantoaxial-release-and-posterior-reduction-by-occipitocervical-plate-fixation-for-the-treatment-of-basilar-invagination-with-irreducible-atlantoaxial-dislocation
#17
Qingde Wang, Kezheng Mao, Chunli Wang, Wei Mei
Background Prior studies have mainly assessed transoral odontoidectomy for basilar invagination with irreducible atlantoaxial dislocation. However, studies evaluating transoral release and posterior reduction with occipitocervical fixation in this setting are scarce. Methods From 2008 to 2013, 11 patients (6 men and 5 women; 23-67 years of age) with basilar invagination and irreducible atlantoaxial dislocation underwent surgery. They presented signs and symptoms of myelopathy or significant spinal cord injury, and were treated by transoral soft tissue release without odontoidectomy, under skull traction with heavy weight and by posterior reduction with occipitocervical plate fixation...
October 24, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27771479/surgical-management-for-destructive-atlantoaxial-spondyloarthropathy-in-long-term-hemodialysis-patients
#18
Je Hoon Jeong, Hee Kyung Kim, Soo Bin Im
BACKGROUND: Atlantoaxial spondyloarthropathy most often results from rheumatoid arthritis, cancer metastasis, or basilar invagination. Dialysis-related spondyloarthropathy is a rare cause of spinal deformity and cervical myelopathy at the atlantoaxial joint. We report 2 patients on long-term hemodialysis who presented with atlantoaxial spondyloarthropathy. CASE DESCRIPTION: Two patients with end-stage renal failure presented with a history of progressively worsening neck pain, motion limitation, and gait disturbance...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27554349/the-changes-of-syrinx-volume-after-posterior-reduction-and-fixation-of-basilar-invagination-and-atlantoaxial-dislocation-with-syringomyelia
#19
Zuowei Wang, Xingwen Wang, Fengzeng Jian, Can Zhang, Hao Wu, Zan Chen
PURPOSE: The purpose of this study focuses on the changes of the syrinx volume after posterior reduction and fixation of the basilar invagination (BI) and atlantoaxial dislocation (AAD) with syringomyelia. METHODS: We retrospectively analyzed the clinical outcome and syrinx volume changes in 71 patients with BI, AAD and syringomyelia treated with the posterior reduction and fixation technique. RESULTS: Clinical improvement was observed in 64 (90...
August 23, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27544334/radiologic-evaluation-of-basilar-invagination-without-obvious-atlantoaxial-instability-group-b-basilar-invagination-analysis-based-on-a-study-of-75-patients
#20
Atul Goel, Trimurti Nadkarni, Abhidha Shah, Prashant Sathe, Manoj Patil
BACKGROUND: We evaluated the radiologic features of 75 patients with group B basilar invagination who exhibited no evidence of atlantoaxial instability based on the conventional parameter of an abnormal increase in the atlantodental interval. We specifically studied the variability and possible significance of the presence of cerebrospinal fluid (CSF) within and outside the confines of neural tissues. MATERIALS AND METHODS: During the period January 2008-May 2015, we encountered 75 cases with group B basilar invagination...
November 2016: World Neurosurgery
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