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https://www.readbyqxmd.com/read/28054391/head-injuries-in-children-s-football-results-from-two-prospective-cohort-studies-in-four-european-countries
#1
Oliver Faude, Roland Rössler, Astrid Junge, Karen Aus der Fünten, Jiri Chomiak, Evert Verhagen, Florian Beaudouin, Jiri Dvorak, Nina Feddermann-Demont
Head injuries are considered harmful in children. We analysed head and neck injuries in organised football in 7 to 12 year old children. Data for this analysis were obtained from a prospective cohort study over two consecutive football seasons in two European countries, and a randomised intervention trial over one season in four European countries. Football exposure and injuries were documented through an online database. Detailed information regarding injury characteristics and medical follow-up was retrieved from coaches, children and parents by phone...
January 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28040243/radiographic-damage-and-progression-of-the-cervical-spine-in-ankylosing-spondylitis-patients-treated-with-tnf-%C3%AE-inhibitors-facet-joints-vs-vertebral-bodies
#2
Fiona Maas, Anneke Spoorenberg, Elisabeth Brouwer, Eveline van der Veer, Hendrika Bootsma, Reinhard Bos, Freke R Wink, Suzanne Arends
OBJECTIVES: To investigate radiographic damage and 4-year progression of the cervical facet joints in a prospective observational cohort of AS patients treated with TNF-α inhibitors, to compare this with damage and progression of the cervical vertebral bodies, and to study the relation with patient characteristics and clinical outcome. METHODS: Patients from the Groningen Leeuwarden AS (GLAS) cohort starting TNF-α inhibitors with baseline and 4-year radiographs were included...
November 9, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28029426/three-dimensional-finite-element-analysis-of-a-newly-developed-aliform-internal-fixation-system-for-occipitocervical-fusion
#3
Sui-Xiang Liao, Jian-Hua Wang, Yong-Qiang Zheng, Guan Zheng, Ge-Jing Wei, Hong Xia, Xiao-Hua Chen
For patients with occipital malformation, it is difficult to obtain reliable stability using three screws on the midline. A new aliform occipitocervical internal fixation system was designed. The occiput was fixed with 3, 7, or 11 screws, and a three-dimensional finite element model of the system was established. A compressive preload of 40N combined with a pure moment of 1.5Nm was applied to simulate normal flexion, extension, lateral bending, and axial rotation. The stress distribution across the screws on the occiput and the occipital displacement produced by the newly developed system were compared with those produced by the DePuy SUMMIT system...
October 28, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28027700/management-of-persistent-occiput-posterior-position-a-substantial-role-of-instrumental-rotation-in-the-setting-of-failed-manual-rotation
#4
Paul Guerby, Mickael Allouche, Caroline Simon-Toulza, Christophe Vayssiere, Olivier Parant, Fabien Vidal
INTRODUCTION: To compare the maternal and neonatal outcomes associated with Instrumental Rotation (IR) to operative vaginal delivery in occiput posterior (OP) position with Thierry's spatulas (TS), in the setting of failed manual rotation (MR). STUDY DESIGN: We led a prospective observational cohort study in a tertiary referral hospital in Toulouse, France. All women presenting in labour with persistent OP position at full cervical dilatation and who delivered vaginally after failed MR and with IR or OP assisted delivery were included from January 2014 to December 2015...
December 27, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28018758/cervical-fracture-subluxation-in-a-patient-with-a-prior-c2-sacrum-fusion-case-report-and-review-of-literature
#5
Yi-Ren Chen, Alvin Y Chan, Kevin K Kumar, Anand Veeravagu
Traumatic injury to an adjacent segment of a previously fused spine is a rare complication of scoliosis surgery. The adjacent spinal segments may be more vulnerable to traumatic fracture or dislocation due to increased strain. We present a patient with prior C2 to sacrum fusion who suffered a C2 fracture/dislocation after falling. A 52-year-old female with a previous C2 to the sacrum fusion for idiopathic scoliosis presented with severe and progressively worsening neck pain after multiple falls. Imaging showed anterior displacement of the C2 vertebral body, fracture of C2, and anterior subluxation of the C1-2 complex on C3...
November 22, 2016: Curēus
https://www.readbyqxmd.com/read/27901551/prolonged-second-stage-what-is-the-optimal-length
#6
Alexis C Gimovsky, Vincenzo Berghella
Importance: Prolonged second stage of labor is a clinical dilemma in which controversy exists on whether extending labor in nulliparous women with epidural anesthesia decreases the incidence of cesarean delivery without increasing maternal or neonatal risks. Objective: This narrative review was conducted to assess the current literature on management of and risks associated with a prolonged second stage in nulliparous women with epidurals. Evidence Acquisition: A review of the current literature was performed to evaluate the incidence of cesarean delivery and the maternal and neonatal outcomes...
November 2016: Obstetrical & Gynecological Survey
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
#7
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/27878856/a-semiparametric-mixture-cure-survival-model-for-left-truncated-and-right-censored-data
#8
Chyong-Mei Chen, Pao-Sheng Shen, James Cheng-Chung Wei, Lichi Lin
In follow-up studies, the disease event time can be subject to left truncation and right censoring. Furthermore, medical advancements have made it possible for patients to be cured of certain types of diseases. In this article, we consider a semiparametric mixture cure model for the regression analysis of left-truncated and right-censored data. The model combines a logistic regression for the probability of event occurrence with the class of transformation models for the time of occurrence. We investigate two techniques for estimating model parameters...
November 23, 2016: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/27873038/the-importance-of-nonlinear-tissue-modelling-in-finite-element-simulations-of-infant-head-impacts
#9
Xiaogai Li, Håkan Sandler, Svein Kleiven
Despite recent efforts on the development of finite element (FE) head models of infants, a model capable of capturing head responses under various impact scenarios has not been reported. This is hypothesized partially attributed to the use of simplified linear elastic models for soft tissues of suture, scalp and dura. Orthotropic elastic constants are yet to be determined to incorporate the direction-specific material properties of infant cranial bone due to grain fibres radiating from the ossification centres...
November 21, 2016: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/27832335/a-new-method-for-measurement-of-occipitocervical-angle-by-occiput-c3-angle
#10
Sombat Kunakornsawat, Tinnakorn Pluemvitayaporn, Pritsanai Pruttikul, Suppachai Punpichet, Chaiwat Piyasakulkaew, Alisara Arirachakaran, Jatupon Kongtharvonskul
BACKGROUND: The description of the measurement technique of the posterior occiput-third cervical spine (OC3) angle-before performing occipitocervical fusion is still controversial. Setting an appropriate alignment in occipitocervical instrumentation is important for successful fixation surgery. Several methods were used for quantifying occipitocervical alignment on the lateral radiograph. This study was performed to describe a measurement technique of OC3 angle and comparing reliability and reproducibility in the measurement of occipitocervical angle with previous method...
November 10, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27830891/morphometric-multislice-computed-tomography-examination-of-the-craniovertebral-junction-in-neck-flexion-and-extension
#11
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/27793113/pre-induction-translabial-ultrasound-measurements-in-predicting-mode-of-delivery-compared-to-bishop-score-a-cross-sectional-study
#12
Soghra Khazardoost, Fahimeh Ghotbizadeh Vahdani, Sahar Latifi, Sedighe Borna, Maryam Tahani, Mohammad Ali Rezaei, Masoomeh Shafaat
BACKGROUND: By increased concerns about the accuracy of the traditional methods to predict outcomes after induction of labor, developing new standards has a great clinical importance. Here, we compared the predictive value of translabial ultrasound measurements with Bishop Score to determine the suitability of induction of labor. METHODS: A homogenous population of primigravid women was recruited. Induction of labor was performed with low-dose infusion of oxytocin...
October 28, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27757567/traumatic-atlanto-occipital-dislocation-in-children-a-case-based-update-on-clinical-characteristics-management-and-outcome
#13
Thomas Beez, Jennifer Brown
BACKGROUND: Atlanto-occipital dislocation (AOD) is a rare but severe sequela of high energy trauma. Children are at increased risk, due to their immature spine and biomechanical characteristics. LITERATURE REVIEW: The prevailing mechanism of injury is motor vehicle collision as passenger. AOD commonly presents with cardiorespiratory arrest, spinal cord injury or cranial nerve deficits. Concomitant injuries, such as traumatic brain injury, are frequently encountered...
October 18, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27704673/re-narrow-subpubic-arch-angle-is-associated-with-higher-risk-of-persistent-occiput-posterior-position-at-delivery-t-ghi-a-youssef-f-martelli-f-bellussi-e-aiello-g-pilu-n-rizzo-t-frusca-d-arduini-and-g-rizzo-ultrasound-obstet-gynecol-2016-48-511-515
#14
COMMENT
https://www.readbyqxmd.com/read/27636191/upper-cervical-spine-loading-simulating-a-dynamic-low-speed-collision-significantly-increases-the-risk-of-pain-compared-to-quasistatic-loading-with-equivalent-neck-kinematics
#15
Timothy P Holsgrove, Nicolas V Jaumard, Nina Zhu, Nicholas S Stiansen, William C Welch, Beth A Winkelstein
Dynamic cervical spine loading can produce facet capsule injury. Despite a large proportion of neck pain being attributable to the C2/C3 facet capsule, potential mechanisms are not understood. This study replicated low-speed frontal and rear-end traffic collisions in Occiput-C3 human cadaveric cervical spine specimens, and used kinematic and full-field strain analyses to assess injury. Specimens were loaded quasistatically in flexion and extension before and after dynamic rotation of C3 at 100°/sec. Global kinematics in the sagittal plane were tracked at 1kHz and C2/C3 facet capsule full-field strains were measured...
September 16, 2016: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/27634982/177lu-dotatate-prrt-in-recurrent-skull-base-phosphaturic-mesenchymal-tumor-causing-osteomalacia-a-potential-application-of-prrt-beyond-neuroendocrine-tumors
#16
REVIEW
Sandip Basu, Preeti Fargose
The potential of peptide receptor radionuclide therapy (PRRT) is described in a case of recurrent inoperable phosphaturic mesenchymal tumor causing osteomalacia in the left basiocciput, for which the patient had undergone surgery twice previously. After one cycle of PRRT, there was good symptomatic improvement, with a modest reduction in uptake on both (68)Ga-DOTATATE PET/CT and (18)F-FDG PET/CT suggesting a favorable response. Hence, treatment with a second cycle was considered. Being somatostatin receptor-avid, this rare group of tumors when inoperable or recurrent may potentially be targeted with PRRT...
December 2016: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/27630479/comparison-of-hinged-and-contoured-rods-for-occipitocervical-arthrodesis-in-adults-a-clinical-study
#17
Kingsley O Abode-Iyamah, Brian J Dlouhy, Alejandro J Lopez, Arnold H Menezes, Patrick W Hitchon, Nader S Dahdaleh
INTRODUCTION: A rigid construct that employs an occipital plate and upper cervical screws and rods is the current standard treatment for craniovertebral junction (CVJ) instability. A rod is contoured to accommodate the occipitocervical angle. Fatigue failure has been associated these acute bends. Hinged rod systems have been developed to obviate intraoperative rod contouring. OBJECT: The aim of this study is to determine the safety and efficacy of the hinged rod system in occipitocervical fusion...
July 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27615281/cranial-ontogeny-of-the-early-triassic-basal-cynodont-galesaurus-planiceps
#18
Sandra C Jasinoski, Fernando Abdala
Ontogenetic changes in the skull and mandible of thirty-one specimens of Galesaurus planiceps, a basal non-mammaliaform cynodont from the Early Triassic of South Africa, are documented. The qualitative survey indicated eight changes in the craniomandibular apparatus occurred during growth, dividing the sample into three ontogenetic stages: juvenile, subadult, and adult. Changes in the temporal region, zygomatic arch, occiput, and mandible occurred during the transition from the subadult to adult stage at a basal skull length of 90 mm...
September 12, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27609143/persistent-occiput-posterior-position-associated-to-asynclitism-solved-by-manual-rotation-is-always-possible-to-perform-safely-this-maneuver
#19
Antonio Malvasi, Andrea Tinelli
No abstract text is available yet for this article.
September 9, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27596243/inter-rater-reliability-of-clinical-mobility-measures-in-ankylosing-spondylitis
#20
J Calvo-Gutiérrez, J L Garrido-Castro, C González-Navas, M C Castro-Villegas, R Ortega-Castro, C López-Medina, P Font-Ugalde, A Escudero-Contreras, E Collantes-Estévez
BACKGROUND: Several measurements are often used in daily clinical practice in the assessment of Ankylosing Spondylitis (AS) patients. The Assessment in SpondyloArthiritis International Society (ASAS) recommend in its core set: chest expansion modified Schöber test, Occiput to wall distance, lateral lumbar flexion, cervical rotation and The Bath Ankylosing Spondylitis Metrology Index (BASMI). BASMI also includes five measurements, some of them recommended by ASAS. Three versions of BASMI have been published with different scales and intervals for each component of the index...
2016: BMC Musculoskeletal Disorders
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