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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/28214971/complete-occipitalization-of-the-atlas-with-bilateral-external-auditory-canal-atresia
#2
Janez Dolenšek, Erika Cvetko, Žiga Snoj, Marija Meznaric
Fusion of the atlas with the occipital bone is a rare congenital dysplasia known as occipitalization of the atlas, occipitocervical synostosis, assimilation of the atlas, or atlanto-occipital fusion. It is a component of the paraxial mesodermal maldevelopment and commonly associated with other dysplasias of the craniovertebral junction. External auditory canal atresia or external aural atresia is a rare congenital absence of the external auditory canal. It occurs as the consequence of the maldevelopment of the first pharyngeal cleft due to defects of cranial neural crest cells migration and/or differentiation...
February 18, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28192262/intra-operative-ultrasonography-for-definition-of-less-invasive-surgical-technique-in-patients-with-chiari-type-i-malformation
#3
Roger Schmidt Brock, Mario Augusto Taricco, Matheus Fernandes de Oliveira, Marcelo de Lima Oliveira, Manoel Jacobsen Teixeira, Edson Bor-Seng-Shu
INTRODUCTION: Chiari malformation Type I (CM) is the main congenital malformation disease of the craniovertebral junction. The ideal surgical treatment is still controversial. Invasive procedures inside CSF space and associated with dural repair are considered the gold standard, however a less invasive surgery with isolated bone decompression without dural opening may be possible in selected patients.. Our study evaluates the efficacy of intra-operative CSF flow measurement with ultrasonography (USG) as a determining parameter in the selection of these patients...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28186471/tumoral-calcinosis-of-the-craniovertebral-junction-as-a-cause-of-dysphagia-with-treatment-by-transoral-decompression-case-report
#4
Michael A Mooney, Mark E Oppenlander, U Kumar Kakarla, Nicholas Theodore
Tumoral calcinosis is characterized by tumor-like deposition of calcium in periarticular soft tissue. Spinal involvement is rare, and perioperative diagnosis of tumoral calcinosis can be difficult because lesions may be confused with bony neoplasms. Symptoms of tumoral calcinosis result from bony involvement and/or direct compression of surrounding anatomical structures, for which treatment with surgical decompression can be highly successful. The craniovertebral junction is rarely affected by tumoral calcinosis, and patients with this condition may present with distinct symptoms...
February 10, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28179170/endoscopic-endonasal-approach-for-craniovertebral-junction-pathologies-myth-and-truth-in-clinical-series-and-personal-experience
#5
REVIEW
Massimiliano Visocchi, Francesco Signorelli, Chenlong Liao, Mario Rigante, Gaetano Paludetti, Giuseppe Barbagallo, Alessandro Olivi
No abstract text is available yet for this article.
February 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28175453/171%C3%A2-resurgery-in-craniovertebral-junction-abnormalities
#6
Pavaman Pandit Sindgikar, Kuntal Kanti Das, Awadesh K Jaiswal, Rabi Narayan Sahu, Arun K Srivastava, Anant Mehrotra, Jayesh Chunilal Sardhara, Kamlesh Singh Bhaisora, Sanjay Behari
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28149076/knock-and-drill-technique-a-simple-tips-for-the-instrumentation-in-complex-craniovertebral-junction-anomalies-without-using-fluoroscopy
#7
Arun Srivastava, Jayesh Sardhara, Sanjay Behari, Sindgikar Pavaman, Jeena Joseph, Kuntal Das, Anant Mehrotra, Awadhesh K Jaiswal, Kamlesh Bhaishora
CONTEXT: Existence of complex variable bony and vertebral artery (VA) anomalies at craniovertebral junction (CVJ) in subset of complex CVJ anomalies demands individualized instrumentation policy and placing screws in each bone requires strategic preoperative planning and intraoperative skills. AIM: To evaluate the clinical accuracy of knock and drill (K and D) technique for the screw placement in complex CVJ anomalies. SETTINGS AND DESIGN: Prospective study and operative technical note...
January 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28120073/complications-in-craniovertebral-junction-instrumentation-hardware-removal-can-be-associated-with-long-lasting-stability-personal-experience
#8
Massimiliano Visocchi, Pier Paolo Mattogno, Francesco Signorelli, Jun Zhong, Gerardo Iacopino, Giuseppe Barbagallo
BACKGROUND: The causes of craniovertebral junction (CVJ) instabilities include trauma, rheumatological diseases, tumors, infections, congenital malformations, and degenerative disease processes; these complex pathologies often require CVJ instrumentation. Hardware complications were analyzed in a personal series of 48 treated patients. In light of the analysis of very unusual radiological and clinical findings, the authors tried to better investigate the related mechanisms and to reach possible useful conclusions...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28120062/craniovertebral-junction-transanasal-and-transoral-approaches-reconstruct-the-surgical-pathways-with-soft-or-hard-tissue-endocopic-lines-this-is-the-question
#9
Massimiliano Visocchi, Giuseppe Barbagallo, Vincenzo Lorenzo Pascali, Pierpaolo Mattogno, Francesco Signorelli, Gerardo Iacopino, Antonino Germano', Giuseppe La Rocca
A variety of pathological conditions may affect the clivus and the craniovertebral junction (CVJ). These include congenital disorders, chronic inflammation, neoplasms, infections, and posttraumatic conditions that could all result in CVJ compression and myelopathy Endoscopic-assisted procedures have been further developed for CVJ decompression and they have now become conventional approaches. The aims of the present study were:(1) to compare "radiological" and "surgical" nasoaxial lines (NAxLs); (2) to introduce an analogous radiological line as a predictor of the superior extension of the transoral approach (palatine inferior dental arch line (PIA); (3) to compare the "radiological" nasopalatine line (NPL) with the "surgical" NPL (SNPL) and surgical PIA (SPIA); (4) to compare "our" SNPL with the NAxL; and (5) to find possible radiological reference points to predict, preoperatively, the maximal extent of superior dissection for the transoral approach (SPIA)...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28120061/direct-and-oblique-approaches-to-the-craniovertebral-junction-nuances-of-microsurgical-and-endoscope-assisted-techniques-along-with-a-review-of-the-literature
#10
Massimiliano Visocchi, Antonino Germano', Giuseppe Umana, Armando Richiello, Giuseppe Raudino, A M Eldella, Gerardo Iacopino, Giuseppe Barbagallo
PURPOSE: The aim of this review is to provide an update of the technical nuances of microsurgical and endoscopic-assisted approaches to the craniovertebral junction (transnasal, transoral, and transcervical), and to report on the available clinical results in order to identify the best strategy. METHODS: A nonsystematic update of the reviews and reporting on the anatomical and clinical results of endoscopic-assisted and microsurgical approaches to the craniovertebral junction (CVJ) was performed...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28094426/the-role-of-cine-flow-magnetic-resonance-imaging-in-patients-with-chiari-0-malformation
#11
Kerem Mazhar Ozsoy, Kadir Oktay, Nuri Eralp Cetinalp, Yurdal Gezercan, Tahsin Erman
AIM: The aim of this study was to define the role of phase-contrast cine magnetic resonance imaging in deciding the therapeutic strategy and underlying pathophysiology resulting in syrinx formation in patients with Chiari type 0 malformation. MATERIAL AND METHODS: Seven patients admitted to our clinic with diagnosis of Chiari 0 malformations during the period January 2005 to July 2016 were enrolled in the study. All patients underwent a detailed preoperative neurological examination...
December 14, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28052941/congenital-anomaly-of-the-posterior-arch-of-the-atlas-a-rare-risk-factor-for-posterior-circulation-stroke
#12
Zhi-Yuan Ouyang, Min-Jian Qiu, Zhe Zhao, Xiao-Bing Wu, Lu-Sha Tong
We report an extremely rare case involving a posterior arch anomaly of the atlas, causing a vertebral artery dissection (VAD) induced posterior circulation stroke. A 16-year-old girl was admitted to hospital because of new onset dizziness. VAD related multiple infarction in the posterior circulation was revealed. The congenital posterior arch anomaly of the atlas, along with instability of the atlantoaxial joint, were discovered accidentally during follow-up. This is the first case of ischemic stroke related to atlantal posterior arch aplasia and atlantoaxial instability...
January 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28050351/morphometric-analysis-of-the-occipital-condyle-and-its-surgical-importance
#13
Sandeep Saluja, Sushant Swaroop Das, Neelam Vasudeva
INTRODUCTION: The Occipital Condyle (OC) is an integral component of craniovertebral region which is predisposed to a wide array of traumatic, degenerative and neoplastic diseases. Frequent surgical interventions of OC are required for successful management of these conditions. Hence a meticulous anatomical knowledge of the OC is vital but variability in morphometric dimensions exist amongst different races and hinder the standardization of measurements. AIM: The aim of this study was to present a morphometric reference database for OC of the Indian population and enable comparisons with other populations...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27956253/surgical-treatment-of-skull-base-tumors-extending-to-craniovertebral-junction
#14
Alexey Nikolaevich Shkarubo, Dmitry Nicolaevich Andreev, Nikolai Aleksandrovich Konovalov, Petr Vladimirovich Zelenkov, Andrew Jurievich Lubnin, Ilia Valerievich Chernov, Konstantin Vladimirovich Koval
OBJECTIVE: To conduct a comparative analysis of two groups of patients with skull base chordomas extending оnto the craniovertebral junction, who underwent surgical treatment using extracranial approaches with and without craniocervical fusion. MATERIALS AND METHODS: The study group included 29 patients with skull base chordomas, extending to the craniovertebral junction, who were operated on during the period from 2000 to 2015. The patients underwent the following surgical treatment: posterior craniocervical fusion followed by tumor removal using transoral and combined transoral and transnasal approaches...
December 9, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27942122/the-effect-of-the-shoulder-stability-exercise-using-resistant-vibration-stimulus-on-forward-head-posture-and-muscle-activity
#15
Eun-Kyung Kim, Jong Ho Kang, Hyo Taek Lee
[Purpose] The purpose of this study was to analyze shoulder stabilization using resistant vibration stimulus during bodyblade exercise followed by forward head posture improvement. [Subjects and Methods] Craniovertebral angle and cranial rotation angle were measured with 24 patients who were diagnosed with forward head posture. The experimental group conducted bodyblade exercise for 6 weeks and all patients received conventional physical therapy. The craniovertebral angle and cranial rotation angle were measured using a diagnostic imaging device to measure the change in forward head posture...
November 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27905266/impact-of-rest-break-interventions-on-the-neck-and-shoulder-posture-of-symptomatic-vdu-operators-during-prolonged-computer-work
#16
Montakarn Chaikumarn, Nuttika Nakphet, Prawit Janwantanakul
There is limited research on the effects of different types of rest-break interventions for VDU (Visual display Units) operators on neck and shoulder postures. This study examined the effect of rest-break interventions on the neck and shoulder postures of symptomatic VDU operators during prolonged computer work. Thirty subjects were randomly and equally assigned to breaks with stretching, breaks with dynamic movement, and passive breaks. Subjects performed the typing task for 60 min and received 3-min breaks after 20-min of work...
December 1, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27891038/accessory-atlantoaxial-ligament-avulsion-fracture-of-the-axis-are-there-any-clinical-implications
#17
Hamid Reza Niknejad, Frank van Calenbergh, Philippe Demaerel, Johannes van Loon
Injuries to the craniocervical support structures are frequently observed in neurotrauma cases. Stability of this region is of vital importance. Literature has mainly focused on three major ligaments of the craniocervical junction: The tectorial membrane, the transverse ligament, and the alar ligaments. However, the accessory atlantoaxial ligament (ALL) also seems to be involved in craniocervical stability as shown in cadaveric specimens. Still, the biomechanical importance of this structure needs to be determined, especially in trauma settings...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27891037/revisiting-cruciate-paralysis-a-case-report-and-systematic-review
#18
Benjamin Hopkins, Ryan Khanna, Nader S Dahdaleh
OBJECTIVE: Cruciate paralysis is a rare, poorly understood condition of the upper craniovertebral junction that allows for selective paralysis of the upper extremities while sparing the lower extremities. Reported cases are few and best treatment practices remain up for debate. The purpose of this study was to conduct a systemic literature review in an attempt to identify prognostic predictors and outcome trends associated with cases previously reported in the literature. MATERIALS AND METHODS: We conducted a systematic literature review for all cases using the term "Cruciate Paralysis," reviewing a total of 37 reported cases...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27891034/the-anatomical-perspective-of-human-occipital-condyle-in-relation-to-the-hypoglossal-canal-condylar-canal-and-jugular-foramen-and-its-surgical-significance
#19
Ranjana Verma, Shalini Kumar, Arpita Mahajan Rai, Iqra Mansoor, Raj D Mehra
BACKGROUND: The transcondylar approach (TCA) has gained importance in recent era which enables shorter and direct route to access the lesions ventral to the brainstem. The important step in this approach is resection of the occipital condyle (OC). The detailed knowledge of bony anatomy of OC and its relation to the hypoglossal canal (HC), condylar canal (CC), and jugular foramen (JF) is very important to avoid any iatrogenic injury during craniovertebral surgeries. The aim of the present study is to conduct a morphometric and morphological study and note the variations of the OC and the structures surrounding it in North Indian population...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27891029/craniovertebral-junction-360%C3%A2-a-combined-microscopic-and-endoscopic-anatomical-study
#20
Sukhdeep Singh Jhawar, Maximiliano Nunez, Paolo Pacca, Daniel Seclen Voscoboinik, Huy Truong
OBJECTIVES: Craniovertebral junction (CVJ) can be approached from various corridors depending on the location and extent of disease. A three-dimensional understanding of anatomy of CVJ is paramount for safe surgery in this region. Aim of this cadaveric study is to elucidate combined microscopic and endoscopic anatomy of critical neurovascular structures in this area in relation to bony and muscular landmarks. MATERIALS AND METHODS: Eight fresh-frozen cadaveric heads injected with color silicon were used for this study...
October 2016: Journal of Craniovertebral Junction and Spine
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