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https://www.readbyqxmd.com/read/29053084/intubation-biomechanics-validation-of-a-finite-element-model-of-cervical-spine-motion-during-endotracheal-intubation-in-intact-and-injured-conditions
#1
Benjamin C Gadomski, Snehal S Shetye, Bradley J Hindman, Franklin Dexter, Brandon G Santoni, Michael M Todd, Vincent C Traynelis, Robert P From, Ricardo B Fontes, Christian M Puttlitz
OBJECTIVE Because of limitations inherent to cadaver models of endotracheal intubation, the authors' group developed a finite element (FE) model of the human cervical spine and spinal cord. Their aims were to 1) compare FE model predictions of intervertebral motion during intubation with intervertebral motion measured in patients with intact cervical spines and in cadavers with spine injuries at C-2 and C3-4 and 2) estimate spinal cord strains during intubation under these conditions. METHODS The FE model was designed to replicate the properties of an intact (stable) spine in patients, C-2 injury (Type II odontoid fracture), and a severe C3-4 distractive-flexion injury from prior cadaver studies...
October 20, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29045569/altered-expression-of-reorganized-inputs-as-they-ascend-from-the-cuneate-nucleus-to-cortical-area-3b-in-monkeys-with-long-term-spinal-cord-injuries
#2
Priyabrata Halder, Niranjan Kambi, Prem Chand, Neeraj Jain
Chronic deafferentations in adult mammals result in reorganization of the brain. Lesions of the dorsal columns of the spinal cord at cervical levels in monkeys result in expansion of the intact chin inputs into the deafferented hand representation in area 3b, second somatosensory (S2) and parietal ventral (PV) areas of the somatosensory cortex, ventroposterior lateral nucleus (VPL) of the thalamus, and cuneate nucleus of the brainstem. Here, we describe the extent and nature of reorganization of the cuneate and gracile nuclei of adult macaque monkeys with chronic unilateral lesions of the dorsal columns, and compare it with the reorganization of area 3b in the same monkeys...
October 13, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29040149/the-pantheon-variant-of-the-classic-cathedral-dome-procedure-for-parieto-occipital-skull-deformities
#3
Sebastian Eibach, Hop N Le, John Zovickian, Dachling Pang
OBJECTIVE: To describe a new technique for the reconstruction of parieto-occipital skull deformities. METHODS AND RESULTS: The technique is a variant of the previously described "cathedral dome procedure" used for frontal skull deformities. The authors apply the same principle of remodeling by making meridional slat craniotomies surrounding the depressed dome of the posterior skull deformity, followed by "green-stick fracture-reshaping" of the meridional slats to elevate and support the excised depressed dome...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29033813/recurrence-of-melanoma-after-starting-apremilast-for-psoriasis
#4
Thomas G Salopek
This is a report on a 32-year-old man with a history of two previous melanomas with concurrent plaque-type psoriasis. His history dates to 2009, when he was diagnosed with his first melanoma on the right occiput, Clark's level IV, tumor thickness 1.53 mm, nonulcerated, mitotic index 1/mm(2). He subsequently developed nodal recurrence after an initial negative sentinel lymph node biopsy and was treated with complete lymph node dissection. In 2012, he was diagnosed with a second primary melanoma on the right upper chest, Clark's level IV, tumor thickness 0...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29020806/transcranial-static-magnetic-field-stimulation-tsms-of-the-visual-cortex-decreases-experimental-photophobia
#5
Elena Lozano-Soto, Vanesa Soto-León, Simona Sabbarese, Lara Ruiz-Alvarez, Margarita Sanchez-Del-Rio, Juan Aguilar, Bryan A Strange, Guglielmo Foffani, Antonio Oliviero
Background Transcranial static magnetic field stimulation (tSMS) reduces cortical excitability in humans. Methods The objective of this study was to determine whether tSMS over the occipital cortex is effective in reducing experimental photophobia. In a sham-controlled double-blind crossover study, tSMS (or sham) was applied for 10 minutes with a cylindrical magnet on the occiput of 20 healthy subjects. We assessed subjective discomfort induced by low-intensity and high-intensity visual stimuli presented in a dark room before, during and after tSMS (or sham)...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28979016/alopecic-and-aseptic-nodules-of-the-scalp-with-trichoscopic-and-ultrasonographic-findings
#6
Anna Isabel Lázaro-Simó, Maribel Iglesias Sancho, Mònica Quintana-Codina, Elena Del Alcázar Viladomiu, Pau Umbert Millet, Montse Salleras Redonnet
Alopecic and aseptic nodules of the scalp (AANS) is a rare entity, etiology of which is already unknown. It consists of a few dome-shaped, skin-colored nodules associated with nonscarring alopecia. They are usually located in the upper part of the occiput and surrounded by normal scalp. Most of the times, a biopsy is performed to make an accurate diagnosis. AANS have a good prognosis and even can resolve spontaneously. We present a new case of this entity with the description of trichoscopic and ultrasonographic findings that have recently been reported...
September 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28965445/temporary-occipital-fixation-in-young-children-with-severe-cervical-thoracic-spinal-deformity
#7
Brian J Kelley, Anas A Minkara, Peter D Angevine, Michael G Vitale, Lawrence G Lenke, Richard C E Anderson
OBJECTIVE The long-term effects of instrumentation and fusion of the occipital-cervical-thoracic spine on spinal growth in young children are poorly understood. To mitigate the effects of this surgery on the growing pediatric spine, the authors report a novel technique used in 4 children with severe cervical-thoracic instability. These patients underwent instrumentation from the occiput to the upper thoracic region for stabilization, but without bone graft at the craniovertebral junction (CVJ). Subsequent surgery was then performed to remove the occipital instrumentation, thereby allowing further growth and increased motion across the CVJ...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28948643/a-potential-link-between-lateral-semicircular-canal-orientation-head-posture-and-dietary-habits-in-extant-rhinos-perissodactyla-rhinocerotidae
#8
Rico Schellhorn
Extant rhinoceroses share the characteristic nasal horn, although the number and size of horns varies among the five species. Although all species are herbivores, their dietary preferences, occipital shapes, and common head postures vary. Traditionally, to predict the "usual" head posture (the most used head posture of animals during normal unstressed activities, i.e., standing) of rhinos, the occipital shape was used. While a backward inclined occiput implies a downward hanging head (often found in grazers), a forward inclined occiput is related to the horizontal head posture in browsing rhinos...
September 26, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28943073/the-reliability-and-validity-of-a-venezuelan-version-of-the-bath-ankylosing-spondylitis-functional-index-basfi-and-bath-ankylosing-spondylitis-disease-activity-index-basdai
#9
Mayra Rauseo Vera, Luis Arturo Gutiérrez-González, Irama Maldonado, Soham Al Snih
INTRODUCTION: Spondyloarthropathies (SpA) are disabling diseases with a prevalence of 1.9% in the general population. The indices designed for monitoring the disease should be valid, reliable and cross-culturally adapted for decision-making concerning the appropriate treatment. Changing an adjective or pronoun in a self-administered questionnaire could be the big difference in condensing an idea in a few words and transmitting that concept to all those who share the same language. OBJECTIVES: To develop a Venezuelan version of the original English version of the BASDAI/BASFI and to evaluate its reliability and validity in Venezuelan patients with SpA...
September 21, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28917092/progressive-halo-vest-traction-preceding-posterior-occipitocervical-instrumented-fusion-for-irreducible-atlantoaxial-dislocation-and-basilar-invagination
#10
Peng Li, Deming Bao, Huijuan Cheng, Fanshuai Meng, Junwei Li
OBJECTIVES: Surgical treatment of irreducible atlantoaxial dislocation (IAAD) with basilar invagination (BI) is associated with high rates of severe complications, including mortality. This retrospective study investigated the safety and efficacy of progressive halo-vest traction for IAAD with BI prior to posterior occipitocervical instrumented fusion. PATIENTS AND METHODS: Between 2009 and 2013, 39 patients with IAAD with BI underwent preoperative reduction by progressive halo-vest traction for 20...
September 5, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28906595/superiority-of-occipital-donor-sites-for-split-thickness-skin-grafting-in-dermatosurgery-results-of-a-prospective-randomized-controlled-study
#11
Maximilian Kovacs, Syrus Karsai, Maurizio Podda
BACKGROUND: Split-thickness skin grafts are commonly used in dermatosurgery. For occipital donor sites, retrospective studies have shown good results with respect to graft take and healing rates. Nevertheless, the majority of grafts in dermatosurgery are harvested from the thigh. To date, there has been no prospective randomized controlled study comparing occipital versus femoral donor sites. PATIENTS AND METHODS: Following micrographically controlled R0 tumor resection, 108 patients were randomized prior to undergoing split-thickness skin grafting (donor site: occiput vs...
September 14, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28889406/intrapartum-transperineal-ultrasound-used-to-predict-cases-of-complicated-operative-vacuum-and-forceps-deliveries-in-nulliparous-women
#12
José Antonio Sainz, José Antonio García-Mejido, Adriana Aquise, María José Bonomi, Carlota Borrero, Paloma De la Fuente, Ana Fernández-Palacín
INTRODUCTION: The objective of this study was to investigate the predictive value of intrapartum transperineal ultrasound in the identification of complicated operative(vacuum or forceps) deliveries in nulliparous women. MATERIAL AND METHODS: Prospective observational study of nulliparous women with an indication for operative-delivery who underwent intrapartum transperineal ultrasound before fetal extraction. Managing obstetricians were blinded to the ultrasound data...
September 10, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28877111/effects-of-curvilinear-supine-position-on-tissue-interface-pressure-a-prospective-before-and-after-study
#13
Yue Guo, Yan Li, Kuaile Zhao, Xiao Yue, Yunhong Yu, Wan Kuang, Jing Liu, Xiangyan Li, Tiyu Zhao
PURPOSE: To determine whether a curvilinear supine position increases the contact area between the subject and the surgical table, reduces interface pressures within contact areas, and improves comfort. DESIGN: This observational study was completed to establish proof-of-concept to determine differences between 2 positions (supine and curvilinear) on interface pressure of 5 at-risk anatomical locations, overall contact area, and subjects' comfort level. SUBJECTS AND SETTING: The study was conducted at the operating theater of a tertiary teaching hospital in Wuhan, China...
September 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28846126/progressive-infantile-scoliosis-managed-with-osteopathic-manipulative-treatment
#14
Richard A Feely, Holly E Kapraun
Infantile idiopathic scoliosis is a compensatory result of cranial and sacral intraosseous dysfunction associated with asymmetric developmental deformation of the occiput, leading to dysfunction of the sphenobasilar synchondrosis. A female infant with progressive infantile idiopathic scoliosis diagnosed at age 12 months (46.9° left scoliotic curve) initially received standard orthopedic care, including casting. The patient presented for osteopathic evaluation at age 14 months, at which time her scoliotic curve was 52°...
September 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28840080/adult-case-of-atlantoaxial-rotatory-fixation-treated-with-in-situ-fixation-using-an-unusual-posterior-instrumentation-construct
#15
Yasuyoshi Miyao, Manabu Sasaki, Masao Umegaki, Kazuo Yonenobu
Atlantoaxial rotatory fixation (AARF) occurs commonly in children who have undergone trauma. It is usually corrected with conservative therapy. In this report, however, the patient was an adult with AARF who was treated surgically. A 64-year-old woman presented with a 1-year history of spastic gait and hand clumsiness. Imaging studies revealed the presence of AARF, os odontoideum, and severe spinal cord compression at that spinal level. As the AARF had not been responded to head traction with a halo device, we decided to treat the patient with in situ posterior fixation...
July 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28835328/positional-skull-deformities
#16
Christian Linz, Felix Kunz, Hartmut Böhm, Tilmann Schweitzer
BACKGROUND: Especially in the first 6 months of life, skull deformities manifesting as a uni- or bilateral flattening of the occiput often give rise to questions of differential diagnosis and potential treatment. In this review, the authors summarize the current understanding of risk factors for this condition, and the current state of the relevant diagnostic assessment and options for treatment. METHODS: The recommendations given in this selective review of the literature are based on current studies and on existing guidelines on the prevention of sudden infant death, the recommendations of the German Society for Pediatric Neurology (Deutsche Gesellschaft für Neuropädiatrie), and the American guidelines on the treatment of positional plagiocephaly in infancy...
August 7, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28826867/anatomy-of-the-alar-ligamentpart-i-morphometrics-and-variants
#17
Joe Iwanaga, Juan Sardi, Vlad Voin, Jens R Chapman, Rod J Oskouian, R Shane Tubbs
OBJECTIVE: The alar ligaments are one of the primary ligamentous structures contributing to craniovertebral stability. The purpose of this study is to clarify the morphology of the alar ligament using fresh cadaveric specimens. METHODS: Twenty-two fresh frozen cadaveric alar ligaments were used in this study. The occiput, C1 and C2 were removed en bloc from each specimen and various measurements and observations, including variations, were documented. RESULTS: The angle formed by both alar ligaments was measured in a neutral position (149±24...
August 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28779918/effects-of-a-respiratory-functional-training-program-on-pain-and-sleep-quality-in-patients-with-fibromyalgia-a-pilot-study
#18
M Garrido, M Y Castaño, C Biehl-Printes, M A Gomez, J C Branco, P Tomas-Carus, A B Rodriguez
OBJECTIVE: To evaluate the effect of 8-week respiratory functional training program on pain tolerance, sleep, and urinary antioxidant and cortisol levels in 18 patients with fibromyalgia. METHODS: Participants underwent a 12-week intervention: 4 weeks as control and 8 weeks of breathing exercises. Pain tolerance assay was done by using an algometer, whereas sleep quality was evaluated by actigraphy and by the Pittsburgh Sleep Quality Index. Cortisol and antioxidant levels were determined using commercial assay kits...
August 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28777683/inclinometric-measurement-of-kyphotic-curvature-description-and-clinimetric-properties
#19
Laurie Devaney, Richard Bohannon, Jon Rizzo, Maryclaire Capetta, Jeremy Vigneault, Katherine Van Deveire
BACKGROUND: Hyperkyphosis is associated with physical impairments, activity limitations, and reduced quality of life. Therefore, a simple, reliable, responsive, and valid clinical measure of dorsal kyphosis would be valuable to clinicians. OBJECTIVE: To describe a novel procedure for measuring kyphotic curvature-the inclinometric kyphosis measure (IKM)-and provide an estimation of reliability, responsiveness, and validity. METHODS: During 2 sessions spaced days apart, we used a bubble inclinometer to measure dorsal kyphosis in 68 patients receiving outpatient physical therapy...
August 4, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28767373/mixed-neural-network-approach-for-temporal-sleep-stage-classification
#20
Hao Dong, Akara Supratak, Wei Pan, Chao Wu, Paul M Matthews, Yike Guo
This paper proposes a practical approach to addressing limitations posed by using of single-channel electroencephalography (EEG) for sleep stage classification. EEG-based characterizations of sleep stage progression contribute the diagnosis and monitoring of the many pathologies of sleep. Several prior reports explored ways of automating the analysis of sleep EEG and of reducing the complexity of the data needed for reliable discrimination of sleep stages at lower cost in the home. However, these reports have involved recordings from electrodes placed on the cranial vertex or occiput, which are both uncomfortable and difficult to position...
July 28, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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