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Occiput posterior

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https://www.readbyqxmd.com/read/28965445/temporary-occipital-fixation-in-young-children-with-severe-cervical-thoracic-spinal-deformity
#1
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/28917092/progressive-halo-vest-traction-preceding-posterior-occipitocervical-instrumented-fusion-for-irreducible-atlantoaxial-dislocation-and-basilar-invagination
#2
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/28889406/intrapartum-transperineal-ultrasound-used-to-predict-cases-of-complicated-operative-vacuum-and-forceps-deliveries-in-nulliparous-women
#3
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/28840080/adult-case-of-atlantoaxial-rotatory-fixation-treated-with-in-situ-fixation-using-an-unusual-posterior-instrumentation-construct
#4
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/28728149/higher-rates-of-operative-delivery-and-maternal-and-neonatal-complications-in-persistent-occiput-posterior-position-with-a-large-head-circumference-a-retrospective-cohort-study
#5
Oren Yagel, Sarah M Cohen, Michal Lipschuetz, Tali Bdolah-Abram, Hagai Amsalem, Doron Kabiri, Simcha Yagel
INTRODUCTION: We investigated whether large head circumference (HC) combined with persistent occiput posterior (OP) position is associated with higher rates of operative delivery and obstetric and neonatal complications than OP deliveries without large HC or in occiput anterior (OA) position. MATERIALS AND METHODS: Term singleton deliveries in our centers from January 2010 to December 2014, delivered in cephalic OA (n = 41,038) or OP position (n = 1,740), were assessed...
July 21, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28720989/trapezius-perforator-flap-for-reconstruction-of-a-posterior-cervical-defect
#6
Ricardo Nascimento, Joana Costa, Ricardo Horta, Álvaro Silva
The use of free flaps is considered the "gold standard" for reconstruction of head and neck defects. Locoregional flaps allows a better aesthetic result compared to free flaps, whenever there's an external skin defect. However the use of free flaps is not always adequate in the presence of preoperative comorbidities or previous surgeries. Since the description of the trapezius myocutaneous flap in the 1980's, many authors have published the results of the applicability of this flap in head and neck salvage reconstructive surgery...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28699402/the-management-of-episiotomy-technique-and-its-effect-on-pelvic-floor-muscles-during-a-malposition-childbirth
#7
Dulce A Oliveira, Marco P L Parente, Begoña Calvo, Teresa Mascarenhas, Renato M Natal Jorge
Vaginal childbirth is the leading cause of pelvic floor muscles injury, which contributes to pelvic floor dysfunction, being enhanced by fetal malposition. Therefore, the aim of the present study is to verify the influence of mediolateral episiotomies in the mechanics of the pelvic floor with the fetus in occiput posterior position when compared to the occiput anterior position. Numerical simulations of vaginal deliveries, with and without episiotomy, are performed based on the Finite Element Method. The biomechanical model includes the pelvic floor muscles, a surface to delimit the anterior region of the birth canal and a fetus...
August 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28685259/extremely-large-sinus-pericranii-with-involvement-of-the-torcular-and-associated-with-crouzon-s-syndrome
#8
Felipe H Sanders, Bryan A Edwards, Matthew Fusco, Rod J Oskouian, R Shane Tubbs, James M Johnston
INTRODUCTION: Sinus pericranii is a rare vascular malformation that connects the intracranial dural sinuses to the extracranial venous drainage system and is caused by either trauma or congenital defects. Although the majority of these vascular structures are due to trauma, some are congenital. CASE REPORT: Herein, we report a 5-month-old patient with a very large and fluctuating subcutaneous mass over the occiput and the diagnosis of Crouzon's syndrome. The child presented with a large midline mass that on imaging, connected to the underlying torcular and was diagnosed as a sinus pericranii...
July 6, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28610344/a-new-species-of-the-genus-burmagomphus-williamson-odonata-gomphidae-from-northern-thailand
#9
Noppadon Makbun
Burmagomphus chiangmaiensis sp. nov. (holotype: Ban Luang, Chom Thong, Chiang Mai province, Thailand, 890-900 m, 14 v 2012) is described and illustrated. It can be differentiated from its most similar congener, B. apricus from China, by shape of posterior hamulus, yellow trapezoid band on occiput, and larger size.
May 19, 2017: Zootaxa
https://www.readbyqxmd.com/read/28593385/tailor-made-management-of-thoracic-scoliosis-with-cervical-hyperextension-in-muscular-dystrophy
#10
A Angelliaume, L Harper, A Lalioui, A Delgove, Y Lefèvre
PURPOSE: We report the case of a 13-year-old boy managed for fixed cervical hyperextension due to congenital muscular dystrophy with partial merosin deficiency. He presented a right decompensated thoracic scoliosis (T6-L1 Cobb angle 72°) associated with cervical and lumbar lordosis. The spinal extension was accompanied by major flexion of the hip resulting in the trunk being bent forward. This posture caused daily severe back pain responsible for significant loss of quality of life. This led to the decision to perform surgery...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28503467/medial-lemniscus-tract-lesion-after-high-voltage-electrical-injury-a-case-report
#11
Chul-Hyun Cho, Dong Gyu Lee
We present the case of a 33-year-old man who experienced a 10,000-V electrical shock when working with electrical wiring. He suffered third-degree burns on his scalp at the right occiput (entry wound) and on his left arm (exit would), and a second-degree burn on his left foot (exit wound). He presented with severe spasticity of both lower extremities, motor weakness with a Medical Research Council grade of 3, and sensory impairments below thoracic level 11 that included an inability to sense light touch and defects in proprioception...
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28473289/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter-2-indications-of-oxytocin-according-the-first-and-second-stages-of-spontaneous-labor
#12
L Gaucher, C Le Ray
No abstract text is available yet for this article.
June 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28466094/periosteal-turndown-flap-for-posterior-occipitocervical-fusion-a-technique-review
#13
Siamak Yasmeh, Adrienne Quinn, Liam Harris, Austin E Sanders, Ted Sousa, David L Skaggs, Lindsay M Andras
PURPOSE: Recently, several authors have proposed techniques for improving the fusion rate in pediatric posterior occipitocervical fusion including a variety of implants and the use of bone morphogenetic protein. A technique by Koop et al. using a periosteal flap for occipitocervical arthrodesis was described in 1984. METHODS: A straight incision is made about the posterior neck to expose the occipitocervical region from the inion superiorly to the lowest cervical vertebrae to be fused inferiorly...
May 2, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28444241/cervical-spine-muscle-tendon-unit-length-differences-between-neutral-and-forward-head-postures-biomechanical-study-using-human-cadaveric-specimens
#14
Saeed Khayatzadeh, Olivia A Kalmanson, Dale Schuit, Robert M Havey, Leonard I Voronov, Alexander J Ghanayem, Avinash G Patwardhan
Background: Forward head posture (FHP) may be associated with neck pain and poor health-related quality of life. Literature describes only qualitative muscle length changes associated with FHP. Objective: The purpose of this study was to quantify how muscle-tendon unit lengths are altered when human cadaveric specimens are placed in alignments representing different severities of FHP. Design: This biomechanical study used 13 fresh-frozen cadaveric cervical spine specimens (Occiput-T1, 54±15 y)...
July 1, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28413721/aspects-of-gorgonopsian-paleobiology-and-evolution-insights-from-the-basicranium-occiput-osseous-labyrinth-vasculature-and-neuroanatomy
#15
Ricardo Araújo, Vincent Fernandez, Michael J Polcyn, Jörg Fröbisch, Rui M S Martins
Synapsida, the clade including therapsids and thus also mammals, is one of the two major branches of amniotes. Organismal design, with modularity as a concept, offers insights into the evolution of therapsids, a group that experienced profound anatomical transformations throughout the past 270 Ma, eventually leading to the evolution of the mammalian bauplan. However, the anatomy of some therapsid groups remains obscure. Gorgonopsian braincase anatomy is poorly known and many anatomical aspects of the brain, cranial nerves, vasculature, and osseous labyrinth, remain unclear...
2017: PeerJ
https://www.readbyqxmd.com/read/28409288/temporary-fusionless-posterior-occipitocervical-fixation-for-a-proximal-junctional-type-ii-odontoid-fracture-after-previous-c2-pelvis-fusion-case-report-description-of-a-new-surgical-technique-and-review-of-the-literature
#16
Alexander A Theologis, Vedat Deviren, Bobby Tay
PURPOSE: Axial fractures in patients with a previous C2-pelvis posterior instrumented fusion are rare and may be challenging to manage. Motion preservation in the axial spine for these patients is important, as the C1-2 and Occipit-C1 joints are their only remaining mobile spinal segments. In this unique report, we present for the first time the use of a fusionless occipitocervical operation for the treatment of a type II odontoid fracture and unilateral C2 pars fracture adjacent to a previous C2-pelvis posterior instrumented fusion...
May 2017: European Spine Journal
https://www.readbyqxmd.com/read/28408261/use-of-intraoperative-navigation-for-reconstruction-of-the-c1-lateral-mass-after-resection-of-aneurysmal-bone-cyst
#17
Jennifer Neva, Brandon W Smith, Jacob R Joseph, Paul Park
BACKGROUND: Aneurysmal bone cysts (ABCs) are rare blood-filled cystic lesions that are found in the long bones and spine. Here, we present a case of an ABC found in the lateral mass and lamina of C1. Lesions in this area provide a surgical challenge because of its difficulty to access as well as its need for reconstruction. We describe a novel use of intraoperative navigation (ION) to assist in the placement of a C1 lateral mass titanium cage. CASE DESCRIPTION: An 18-year-old female patient presented with headaches and progressive neck pain...
June 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28387916/occiput-spine-relationship-shoulders-are-more-important-than-head
#18
A Svelato, A Ragusa, P Alimondi, M Di Tommaso, R Marci, V Barbagallo, R D F Alampi, G Calagna, A Perino
OBJECTIVE: To understand the role of fetal spine position in determining a fetal head position at the time of birth and modality of delivery. PATIENTS AND METHODS: This was a multicenter prospective observational study. Fetal occiput and spine position were evaluated by intrapartum ultrasound. Eighty-six women were eligible for inclusion in the study. Occiput rotational movements and modality of delivery in relation to the fetal spine position were investigated...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28369942/sonographic-evaluation-of-the-fetal-spine-position-and-success-rate-of-manual-rotation-of-the-fetus-in-occiput-posterior-position-a-randomized-controlled-trial
#19
Bianca Masturzo, Antonio Farina, Lorenza Attamante, Annalisa Piazzese, Alessandro Rolfo, Pietro Gaglioti, Tullia Todros
BACKGROUND: To evaluate whether sonographic (US) diagnosis of the fetal spine position could increase the success rate of manual rotation of the fetal occiput (MRFO) in second-stage arrest in persistent occiput posterior position (OPP). METHODS: In this randomized controlled parallel single-center trial, 58 nulliparous in second-stage arrest of labor with fetus in cephalic presentation and OPP diagnosed by US were randomly assigned to group A where the fetal spine position was not known by the operator or to group B where the operator knew it...
April 3, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28368798/-risks-factors-of-cesarean-delivery-after-3hours-of-delayed-pushing
#20
S Cheniere, S Ménard, M-C Lamau, F Goffinet, C Le Ray
OBJECTIVES: Identify the factors associated with caesarean delivery for unengaged fetal head beyond 3hours of passive second stage of labor, among primiparous patients. METHODS: A case-control study conducted in level III universitary center between October 2012 and September 2015. Only primiparous at term, with a singleton, cephalic fetus and a passive second stage of labor prolonged over 3hours before pushing were included. During the second stage of labor, patients who had caesarean for abnormal fetal heart rate were excluded...
February 2017: Gynecologie, Obstetrique, Fertilite & Senologie
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