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Basilar Invagination

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https://www.readbyqxmd.com/read/28621629/endoscopic-endonasal-odontoid-resection-with-real-time-intraoperative-image-guided-computed-tomography-report-of-4-cases
#1
Harminder Singh, Sarang Rote, Ajit Jada, Evan D Bander, Gustavo J Almodovar-Mercado, Walid I Essayed, Roger Härtl, Vijay K Anand, Theodore H Schwartz, Jeffrey P Greenfield
The authors present 4 cases in which they used intraoperative CT (iCT) scanning to provide real-time image guidance during endonasal odontoid resection. While intraoperative CT has previously been used as a confirmatory test after resection, to the authors' knowledge this is the first time it has been used to provide real-time image guidance during endonasal odontoid resection. The operating room setup, as well as the advantages and pitfalls of this approach, are discussed. A mobile intraoperative CT scanner was used in conjunction with real-time craniospinal neuronavigation in 4 patients who underwent endoscopic endonasal odontoidectomy for basilar invagination...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28614531/alternative-option-for-osteogenesis-imperfecta-and-trigeminal-neuralgia
#2
Leonardo Gilmone Ruschel, Guilherme José Agnoletto, Sonival Cândido Hunhevicz, Daniel Benzecry de Almeida, Walter Oleschko Arruda
Osteogenesis imperfecta (OI) is a bone disorder that can lead to skull base deformities such as basilar invagination, which can cause compression of cranial nerves, including the trigeminal nerve. Trigeminal neuralgia in such cases remains a challenge, given distorted anatomy and deformities. We present an alternative option, consisting in cannulation of the foramen ovale and classical percutaneous treatment. Percutaneous balloon microcompression was performed in a 28 year-old woman with OI and severe trigeminal neuralgia using computed tomography (CT) and radiographic-guided cannulation of the Gasserian ganglion without neuronavigation or stereotactic devices...
April 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28577039/how-i-do-it-cranial-setup-for-cranial-settling
#3
Eugenio Cárdenas Ruiz-Valdepeñas, A Kaen, G Perez Prat
BACKGROUND: Expanded endonasal endoscopic techniques allow us to treat several pathologies related to the odontoid process and craniocervical junction. Cases such as giant basilar invagination represent a surgical challenge. METHODS: The authors provide technical nuances and describe how to complete an endoscopic endonasal odontoidectomy and release the craniocervical junction with the aim of restoring a correct sagittal balance in cases with giant basilar invagination...
June 2, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28498058/endoscopic-endonasal-resection-of-the-odontoid-process-clinical-outcomes-in-34-adults
#4
Nathan T Zwagerman, Matthew J Tormenti, Zachary J Tempel, Eric W Wang, Carl H Snyderman, Juan C Fernandez-Miranda, Paul A Gardner
OBJECTIVE Treatment of odontoid disease from a ventral corridor has consisted of a transoral approach. More recently, the endoscopic endonasal approach (EEA) has been used to access odontoid pathology. METHODS A retrospective review was conducted of patients who underwent an EEA for odontoid pathology from 2004 to 2013. During our analysis, the mean follow-up duration was 42.6 months (range 1-80 months). Patient outcomes, complications, and postoperative swallowing function were assessed either by clinic visit or phone contact...
May 12, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28472514/evaluating-atlantoaxial-dislocation-based-on-cartesian-coordinates-proposing-a-new-definition-and-its-impact-on-assessment-of-congenital-torticollis
#5
Jayesh Sardhara, Sanjay Behari, Pavaman Sindgikar, Arun Kumar Srivastava, Anant Mehrotra, Kuntal Kanti Das, Kamlesh Singh Bhaisora, Rabi N Sahu, Awadhesh K Jaiswal
BACKGROUND: Conventional 2-dimensional (2-D) definition of atlantoaxial dislocation (AAD) is inadequate for coexisting 3-D displacements. OBJECTIVE: To prospectively classify AAD and its related abnormalities along 3 Cartesian coordinates and assess their association with torticollis. METHODS: One hundred and fifty-four patients with congenital AAD were prospectively classified according to their C1-2 displacement along 3 Cartesian coordinates utilizing 3-D multiplanar CT...
May 3, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28466256/the-effect-of-posterior-fossa-decompression-in-adult-chiari-malformation-and-basilar-invagination-a-systematic-review-and-meta-analysis
#6
Ulysses de Oliveira Sousa, Matheus Fernandes de Oliveira, Lindolfo Carlos Heringer, Alécio Cristino Evangelista Santos Barcelos, Ricardo Vieira Botelho
Chiari malformation (CM) and basilar invagination (BI) are mesodermal malformations with disproportion between the content and volume of posterior fossa capacity and overcrowding of neural structures at the level of foramen magnum. Several alternatives for posterior approaches are available, including extradural (ED), extra-arachnoidal, and intradural (ID) approaches. The objectives are to evaluate the effect of several surgical techniques for posterior fossa decompression (PFD) in the outcomes of patients with CCJM and to evaluate complications in the techniques reported...
May 2, 2017: Neurosurgical Review
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
#7
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
#8
https://www.readbyqxmd.com/read/28361020/role-of-dynamic-computed-tomography-scans-in-patients-with-congenital-craniovertebral-junction-malformations
#9
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-of-2-clinical-cases
#10
Alexey N Shkarubo, Alexander A Kuleshov, Ilia V Chernov, Marchel S Vetrile
OBJECTIVE: 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. METHODS: 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...
June 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28220607/neurological-and-spinal-manifestations-of-the-ehlers-danlos-syndromes
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
Kazim Yigitkanli, Serkan Simsek
No abstract text is available yet for this article.
October 10, 2016: Turkish Neurosurgery
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