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https://www.readbyqxmd.com/read/28052941/congenital-anomaly-of-the-posterior-arch-of-the-atlas-a-rare-risk-factor-for-posterior-circulation-stroke
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/27891026/anaesthesia-management-in-craniovertebral-junctional-anomalies
#10
REVIEW
Oswald Mascarenhas
Craniovertebral Junctional (CVJ) anomalies are developmental disorders that affect the skeleton and enclosed neuraxis at the junction of cranium and cervical spine. The high prevalence of airway obstruction and restrictive pulmonary disease in combination with cardiovascular manifestations poses a high anaesthetic risk to these patients. This article provides a discussion of management of anaesthesia in patients with craniovertebral anomalies, the evaluation of risk factors in these patients and their management, including emergency airway issues...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27888089/quantitative-measurements-of-the-skull-base-and-craniovertebral-junction-in-congenital-occipitalization-of-the-atlas-a-ct-based-anatomical-study
#11
Rui Zong, Yiheng Yin, Guangyu Qiao, Yazhou Jin, Xinguang Yu
BACKGROUND: To study the craniovertebral junction (CVJ) and determine the anatomical characteristics of occipitalization of the atlas (OC) by computed tomography imaging. METHODS: We retrospectively reviewed 80 cases of patients with OC who underwent cervical CT scanning between March 2012 and March 2014. Forty healthy subjects were recruited as a control cohort. Fusion pattern and associated osseous anomalies were recorded. Fifteen linear quantitative parameters were measured to study the outlet of the foramen magnum, angular dimension of the skull base, posterior cranial fossa, and height of the odontoid process...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27830891/morphometric-multislice-computed-tomography-examination-of-the-craniovertebral-junction-in-neck-flexion-and-extension
#12
Slobodan Marinkovic, Ivan Milić, Igor Djorić, Luciano Brigante, Aleksandar Miljatović, Laslo Puškaš, Slobodan Kapor, Jelena Boljanović
BACKGROUND: Detailed study of the craniovertebral junction (CVJ) is necessary to completely understand the mechanism of its flexion and extension. MATERIALS AND METHODS: One cadaver head was sectioned in the sagittal plane. Also, in 22 volunteers, examined using the multislice computerized tomography (MSCT), 14 parameters and 2 angles were measured in the neutral position, flexion and extension. RESULTS: The obtained measurements showed the anterior part of the occiput to move inferiorly in flexion, and the anterior atlas arch and the tip of the dens to get closer to the basion...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27830873/kinematic-magnetic-resonance-imaging-study-of-the-brain-stem-and-cervical-cord-by-dynamic-neck-motion
#13
M Mališ, B Georgievski, I Milić, A Mijatović, V Kovačević, D Lazić, S Kapor, S Marinkovic
BACKGROUND: The aim was to examine the position of the brain stem and cervical cord following the neck flexion and extension. MATERIALS AND METHODS: The serial sagittal T2-weighted magnetic resonance imaging (MRI) sections of the cervical cord and brain stem were made in 6 volunteers. The images were mainly used to measure certain distances and angles of the brain stem and cervical cord in the neutral position, and then following the head and neck flexion and extension...
2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27821964/correlation-between-rounded-shoulder-posture-neck-disability-indices-and-degree-of-forward-head-posture
#14
Eun-Kyung Kim, Jin Seop Kim
[Purpose] The present study aimed to examine the correlation between rounded shoulder posture, neck disability indices and the degree of forward head posture. [Subjects and Methods] Subjects aged 19-24 years were selected for this study, and the craniovertebral angle was used to measure the degree of forward head posture in the standing and seated positions. Vernier calipers were used to measure rounded shoulder posture in the supine position, and neck pain and functional disability were assessed using neck disability indices...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27800203/surgical-treatment-for-occipital-condyle-fracture-c1-dislocation-and-cerebellar-contusion-with-hemorrhage-after-blunt-head-trauma
#15
Shigeo Ueda, Nobuhiro Sasaki, Miyuki Fukuda, Minoru Hoshimaru
Occipital condyle fractures (OCFs) have been treated as rare traumatic injuries, but the number of reported OCFs has gradually increased because of the popularization of computed tomography (CT) and magnetic resonance imaging (MRI). The patient in this report presented with OCFs and C1 dislocation, along with traumatic cerebellar hemorrhage, which led to craniovertebral junction instability. This case was also an extremely rare clinical condition in which the patient presented with traumatic lower cranial nerve palsy secondary to OCFs...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27799674/the-effect-of-feedback-respiratory-exercise-on-muscle-activity-craniovertebral-angle-and-neck-disability-index-of-the-neck-flexors-of-patients-with-forward-head-posture
#16
Jeong-Il Kang, Dae-Keun Jeong, Hyun Choi
[Purpose] This study aimed to simultaneously investigate the activities of the sternocleidomastoid muscle and scalenus anterior muscle, which are agonists of neck and breathing accessory muscles, by implementing breathing exercises. [Subjects and Methods] Thirteen subjects were selected for the experimental group, which performed feedback respiratory exercises with McKenzie exercises, and 12 subjects were selected for the control group, which performed McKenzie exercises alone. The intervention program was performed for 30 minutes a session, once a day, four times a week, and for 2 weeks before conducting the experiment...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27799665/effect-of-backpack-shoulder-straps-length-on-cervical-posture-and-upper-trapezius-pressure-pain-threshold
#17
Osama Ragaa Abdelraouf, Hamada Ahmed Hamada, Ali Selim, Wael Shendy, Hoda Zakaria
[Purpose] This study was performed to investigate the effect of the length of backpack shoulder straps on upper trapezius muscle pain threshold and craniovertebral angle. [Subjects and Methods] There were 25 participants, with ages from 15 to 23 years old. Upper trapezius pain threshold and craniovertebral angle were measured for all subjects without the backpack then re-measured after walking on a treadmill for 15 min under 2 conditions: 1) wearing a backpack with short straps; and 2) wearing a backpack with long straps...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27791706/patient-reported-outcomes-of-occipitocervical-and-atlantoaxial-fusions-in-children
#18
Aditya Vedantam, Daniel Hansen, Valentina Briceño, Alison Brayton, Andrew Jea
OBJECTIVE There is limited literature on patient-reported outcomes (PROs) and health-related quality of life (HRQOL) outcomes in pediatric patients undergoing surgery for craniovertebral junction pathology. The aim of the present study was to assess surgical and quality of life outcomes in children who had undergone occipitocervical or atlantoaxial fusion. METHODS The authors retrospectively reviewed the demographics, procedural data, and outcomes of 77 consecutive pediatric patients who underwent posterior occipitocervical or atlantoaxial fusion between 2008 and 2015 at Texas Children's Hospital...
January 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27771110/image-guided-transoral-approach-in-severe-craniovertebral-junction-malformations-at-the-golden-age-of-endoscopy-regarding-2%C3%A2-cases
#19
E Mazerand, N Karmani, L Le Fournier, L Laccourreye, H-D Fournier
INTRODUCTION: The image-guided transoral approach (IGTOA) provides a safe exposure to skull base midline lesions and the ventral aspect of the craniovertebral junction (CVJ). The IGTOA has several advantages: the head being placed in the extended position, it decreases the brainstem angulation during surgery; the approach being done through the avascular median pharyngeal raphe, not only lowers the bleeding risk but also provides a direct access to the bony pathology and granulation tissue accessible only via the ventral route...
October 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27739941/biomechanical-evaluation-of-the-craniovertebral-junction-after-unilateral-joint-sparing-condylectomy-implications-for-the-far-lateral-approach-revisited
#20
Varun R Kshettry, Andrew T Healy, Robb Colbrunn, Dylan T Beckler, Edward C Benzel, Pablo F Recinos
OBJECTIVE The far lateral transcondylar approach to the ventral foramen magnum requires partial resection of the occipital condyle. Early biomechanical studies suggest that occipitocervical (OC) fusion should be considered if 50% of the condyle is resected. In clinical practice, however, a joint-sparing condylectomy has often been employed without the need for OC fusion. The biomechanics of the joint-sparing technique have not been reported. Authors of the present study hypothesized that the clinically relevant joint-sparing condylectomy would result in added stability of the craniovertebral junction as compared with earlier reports...
October 14, 2016: Journal of Neurosurgery
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