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Cranial synostosis

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https://www.readbyqxmd.com/read/28362187/three-dimensional-changes-in-head-shape-after-extended-sagittal-strip-craniectomy-with-wedge-ostectomies-and-helmet-therapy
#1
Pang-Yun Chou, Rami R Hallac, Shitel Patel, Min-Jeong Cho, Neil Stewart, James M Smartt, James R Seaward, Alex A Kane, Christopher A Derderian
OBJECTIVE Outcome studies for sagittal strip craniectomy have largely relied on the 2D measure of the cephalic index (CI) as the primary indicator of head shape. The goal of this study was to measure the 2D and 3D changes in head shape that occur after sagittal strip craniectomy and postoperative helmet therapy. METHODS The authors performed a retrospective review of patients treated with sagittal strip craniectomy at their institution between January 2012 and October 2015. Inclusion criteria were as follows: 1) isolated sagittal synostosis; 2) age at surgery < 200 days; and 3) helmet management by a single orthotist...
March 31, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28262513/analysis-of-the-cephalometric-changes-in-the-first-3-months-after-spring-assisted-cranioplasty-for-scaphocephaly
#2
O Ou Yang, D D Marucci, R J Gates, M Rahman, J Hunt, M P Gianoutsos, W R Walsh
BACKGROUND: Spring-assisted cranioplasty (SAC) has become an accepted treatment for patients with sagittal craniosynostosis; however, the early effects of springs on skull dimensions have never been assessed with objective measurements in the literature. The present study evaluated the changes in skull dimensions and intracranial volume (ICV) during the first 3 months after SAC for sagittal synostosis. METHODS: Sixteen patients with sagittal synostosis underwent SAC...
January 9, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28214971/complete-occipitalization-of-the-atlas-with-bilateral-external-auditory-canal-atresia
#3
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/28213626/effectiveness-of-screening-for-craniosynostosis-with-ultrasound-a-retrospective-review
#4
Kent M Hall, David A Besachio, Matthew D Moore, Adrian J Mora, William R Carter
BACKGROUND: Minimizing the ionizing radiation dose to children is fundamental to pediatric radiology. The most widely accepted imaging examination for evaluating craniosynostosis is computed tomography (CT) of the head, an examination that involves ionizing radiation. OBJECTIVE: To determine if sonography of the cranial sutures is an adequate screening examination for the diagnosis of craniosynostosis in patients with abnormal skull shape. MATERIALS AND METHODS: A retrospective review of all cranial suture ultrasound (US) examinations performed during the course of a 3-year period (July 2012 - September 2015) was undertaken...
February 17, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28156213/structural-brain-differences-in-school-age-children-with-and-without-single-suture-craniosynostosis
#5
Kristina Aldridge, Brent R Collett, Erin R Wallace, Craig Birgfeld, Jordan R Austin, Regina Yeh, Madison Feil, Kathleen A Kapp-Simon, Elizabeth H Aylward, Michael L Cunningham, Matthew L Speltz
OBJECTIVE Single-suture craniosynostosis (SSC), the premature fusion of a cranial suture, is characterized by dysmorphology of the craniofacial skeleton. Evidence to suggest that children with SSC are at an elevated risk of mild to moderate developmental delays and neurocognitive deficits is mounting, but the associations among premature suture fusion, neuroanatomy, and neurocognition are unexplained. The goals of this study were to determine 1) whether differences in the brain are present in young children with the 2 most common forms of SSC (sagittal and metopic) several years following surgical correction, and 2) whether the pattern of differences varies by affected suture (sagittal or metopic)...
April 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28145932/a-surgical-technique-for-management-of-the-metopic-suture-in-syndromic-craniosynostosis
#6
Jose Rolando Prada-Madrid, Lina Patricia Franco-Chaparro, Miguel Garcia-Wenninger, Tatiana Palomino-Consuegra, Nora Stanford, Diego Alejandro Castañeda-Hernández
OBJECTIVES: The objective is to describe a new surgical procedure developed in the San Jose Pediatric University Hospital for the management of syndromic synostosis of the metopic suture in a patient clinically diagnosed with Saethre-Chotzen syndrome. METHODS: The diagnosis of Saethre-Chotzen syndrome, bilateral coronal sutures, and metopic suture synostoses was made through photographic, anthropometric, exophthalmometric, and computed tomography analysis. The keel-like frontal bone deformity was corrected following resection using a fusiform osteotomy, remodelling was obtained by milling the edges, and the bony fragments were repositioned and fixed on the posterior wall of the frontal bone...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28135115/molecular-analysis-of-ephrin-a4-and-ephrin-b1-in-a-rabbit-model-of-craniosynostosis-likely-exclusion-as-the-loci-of-origin
#7
Gwen M Taylor, Gregory M Cooper, Joseph E Losee, Mark P Mooney, James Gilbert
Craniosynostosis (CS) has a prevalence of approximately 1 in every 2000 live births and is characterized by the premature fusion of one or more cranial sutures. Failure to maintain the cell lineage boundary at the coronal suture is thought to be involved in the pathology of some forms of CS. The Ephrin family of receptor tyrosine kinases consists of membrane-bound receptors and ligands that control cell patterning and the formation of developmental boundaries. Mutations in the ephrin A4 (EFNA4) and ephrin B1 (EFNB1) ligands have been linked to nonsyndromic CS and craniofrontonasal syndrome, respectively, in patient samples...
January 30, 2017: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/28060197/identical-twins-discordant-for-metopic-craniosynostosis-evidence-of-epigenetic-influences
#8
Suresh N Magge, Kendall Snyder, Aparna Sajja, Tiffani A DeFreitas, Sean E Hofherr, Richard E Broth, Robert F Keating, Gary F Rogers
Craniosynostosis, or premature fusion of the cranial sutures, occurs in approximately 1 in 2500 live births. The genetic causes and molecular basis of these disorders have greatly expanded over the last 2 decades, with numerous causative and contributory mutations having been identified. The role of fibroblast growth factor receptor (FGFR) mutations in the etiology of certain eponymous forms of craniosynostosis is now well elucidated; the most common syndromes associated with craniosynostosis are Pfeifer (FGFR1, FGFR2), Apert (FGFR2), Crouzon (FGFR2), Saethre-Chotzen (TWIST1), Jackson-Weiss (FGFR2), Greig (GL13), and Muenke (FGFR3) syndromes...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28059851/treatment-of-unilateral-lambdoid-synostosis-using-cranium-distraction-osteogenesis-with-z-shaped-osteotomy
#9
Shen Weimin, Jie Cui, Jianbing Chen, Qingwen Gao
PURPOSE: We studied the effect of cranium distraction osteogenesis using Z-shaped osteotomy to treat unilateral lambdoid synostosis. METHODS: Simulating the occipital, parietal, and temporal bones as a hemisphere, we designed a lambdoid suture that connected parallel osteotomy and sagittal sutures or extended to fossa cranii posterioras much like the parallel lines connect the upper and lower aspects of the letter Z. Two to 3 distraction devices were then installed after the Z-shaped osteotomy suture...
March 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28027243/correction-of-sagittal-craniosynostosis-using-distraction-osteogenesis-based-on-strategic-categorization
#10
Myung Chul Lee, Kyu Won Shim, In Sik Yun, Eun Kyung Park, Yong Oock Kim
BACKGROUND: Distraction osteogenesis has been used to correct sagittal craniosynostosis in various ways. The purpose of this study was to introduce three distraction osteogenesis procedures by describing four objective measurements. METHODS: Fifty-four patients with sagittal synostosis were recruited and assigned to one of three therapeutic groups: group 1, anteroposterior compression with bitemporal expansion (n = 35); group 2, bitemporal expansion (n = 9); and group 3, anteroposterior expansion with bitemporal expansion (n = 10)...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27906843/comparison-of-resorbable-plating-systems-complications-during-degradation
#11
Dennis C Nguyen, Albert S Woo, Scott J Farber, Gary B Skolnick, Jenny Yu, Sybill D Naidoo, Kamlesh B Patel
INTRODUCTION: Several bioresorbable plating systems have become standard in pediatric craniosynostosis reconstruction. A comparison of these systems is needed to aid surgeons in the preoperative planning process. The authors aim to evaluate 1 institution's experience using Resorb-X by KLS Martin and Delta Resorbable Fixation System by Stryker (Stryker Craniomaxillofacial, Kalamazoo, MI). METHODS: A sample of patients with single-suture nonsyndromic craniosynostosis treated at St Louis Children's Hospital between 2007 and 2014 using either Resorb-X or Delta bioresorbable plating systems were reviewed...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27845963/internal-distraction-osteogenesis-with-piezosurgery-oblique-osteotomy-of-supraorbital-margin-of-frontal-bone-for-the-treatment-of-unilateral-coronal-synostosis
#12
Weimin Shen, Jie Cui, Jianbing Chen, Yi Ji, Liangliang Kong
PURPOSE: To assess the utility of internal distraction osteogenesis with Piezosurgery oblique osteotomy of supraorbital margin of frontal bone for the treatment of unilateral coronal synostosis and to study the outcome and complications of this procedure. Oblique osteotomy allows for entry into the cranial cavity, and along with parallel cut to the roof of the orbit, avoids the need to cut into the orbit which forms the frontal flap. METHODS: Oblique osteotomy was performed along the supraorbital rim to do a frontal suture of the glabella (ages of patients were less than 1 year) or on the opposite side of the supraorbital rim (ages of patients were older than 1 year) after performing a suturectomy of the effected coronal suture...
May 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27831981/squamous-suture-synostosis-a-review-with-emphasis-on-cranial-morphology-and-involvement-of-other-cranial-sutures
#13
REVIEW
Doug Chieffe, Lena Naffaa, Gaby Doumit
Squamosal suture synostosis has received little attention, potentially due to its rare nature. The authors present here a clinical report of isolated unilateral squamosal suture synostosis and a literature review, which produced 6 articles describing 33 patients of squamosal synostosis.Of the reported patients, 15 were associated with a craniofacial syndrome, 10 were nonsyndromic, and 8 were not specified. The cranial morphology varied greatly and only 1 patient was consistent with the morphology predicted by Virchow law-decreased vertical growth with compensatory ipsilateral longitudinal growth (manifesting as occipital and possibly frontal zygomatic bulging)...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27712818/nonsyndromic-craniosynostosis-and-deformational-head-shape-disorders
#14
REVIEW
Lisa M Morris
This article provides an overview of etiology, epidemiology, pathology, diagnosis, and treatment of nonsyndromic craniosynostosis, including sagittal, metopic, coronal, lambdoid, and complex synostosis. Detailed discussion is presented regarding indications for surgical intervention and management options, including frontoorbital advancement, cranial vault reconstruction, endoscopic strip craniectomy, spring-assisted strip craniectomy, and cranial vault distraction osteogenesis. Deformational plagiocephaly is also presented with treatment options including repositioning, physical therapy, and helmet therapy...
November 2016: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27607110/the-effects-of-molding-helmet-therapy-on-spring-mediated-cranial-vault-remodeling-for-sagittal-craniosynostosis
#15
Jordan W Swanson, Jacqueline A Haas, Brianne T Mitchell, Philip B Storm, Scott P Bartlett, Gregory G Heuer, Jesse A Taylor
There is no clear consensus for the optimal treatment of sagittal craniosynostosis; however, recent studies suggest that improved neurocognitive outcomes may be obtained when surgical intervention imparts active cranial expansion or remodeling and is performed before 6 months of age. The authors consider spring-mediated cranioplasty (SMC) to optimally address these imperatives, and this is an investigation of how helmet orthoses before or after SMC affect aesthetic outcomes.The authors retrospectively evaluated patients treated with SMC and adjunct helmeting for sagittal synostosis...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27595190/surgical-correction-of-lambdoid-synostosis-new-technique-and-first-results
#16
Jan-Falco Wilbrand, Hans-Peter Howaldt, Marcus Reinges, Petros Christophis
OBJECTIVE: Premature craniosynostosis of the lambdoid suture is rare. The use of differential diagnosis to rule out positional occipital plagiocephaly is crucial. Nevertheless, once diagnosed, lambdoid craniosynostosis requires corrective surgery to prevent intracranial harm and aesthetic stigma by significant dyscrania. Operative correction of the lambdoid fusion is often performed by suturectomy and helmet therapy, total occipital remodeling interventions, transposition of occipital bone flaps, or occipital advancement procedures either with or without distraction osteogenesis...
October 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27591089/volume-measurements-on-three-dimensional-photogrammetry-after-extended-strip-versus-total-cranial-remodeling-for-sagittal-synostosis-a-comparative-cohort-study
#17
Marie-Lise C van Veelen, Marielle Jippes, Julius-Carl A Carolina, Johan de Rooi, Clemens M F Dirven, Leon N A van Adrichem, Irene M Mathijssen
BACKGROUND: Surgery for sagittal synostosis aims at correction of skull shape and restoration of growth potential. Small cranial volume is associated with raised intracranial pressure (ICP). Although many techniques have been described, information on postoperative volume related to early and late remodeling is lacking. METHODS: Between 2004 and 2008, a total of 95 patients were collected who underwent either early extended strip craniectomy or late total cranial remodeling according to age of presentation...
October 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27589596/normative-ranges-of-anthropometric-cranial-indices-and-metopic-suture-closure-during-infancy
#18
Jonathan Pindrik, Joseph Molenda, Rafael Uribe-Cardenas, Amir H Dorafshar, Edward S Ahn
OBJECTIVE Subjective evaluations typically guide craniosynostosis repair. This study provides normative values of anthropometric cranial indices that are clinically useful for the evaluation of multiple types of craniosynostosis and introduces 2 new indices that are useful in the evaluation and management of metopic and bicoronal synostosis. The authors hypothesize that normative values of the new indices as well as for established measures like the cephalic index can be drawn from the evaluation of CT scans of normal individuals...
December 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27557459/implementation-of-a-tranexamic-acid-protocol-to-reduce-blood-loss-during-cranial-vault-remodeling-for-craniosynostosis
#19
David T Martin, Heike Gries, Nick Esmonde, Brian Diggs, Jeffrey Koh, Nathan R Selden, Martin Schreiber, Anna A Kuang
OBJECTIVE: Pediatric cranial vault remodeling for repair of craniosynostosis is associated with significant blood loss and transfusion requirements. Beginning in 2011, the authors evaluated the impact tranexamic acid (TXA) on blood loss and blood product transfusion for children less than 15 months of age undergoing primary surgical repair of nonsyndromic single suture craniosynostosis. METHODS: Following institutional review board approval, the authors performed a retrospective study of all children undergoing surgical correction of craniosynostosis at Oregon Health & Science University from 2005 to 2015...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27526554/-demographic-and-anatomic-characteristics-and-surgery-results-in-children-who-were-treated-in-soroka-for-craniosynostosis
#20
Odelya Perets, Zvi Howard Perry, Lior Rosenberg, Eldad Silberstein, Reuben Gurphinkel, Avi Cohen
BACKGROUND: Craniosynostosis, the premature fusion of one or more of the cranial sutures, can occur as a part of a syndrome or as an isolated deformity. When not treated properly it may have major physical and social implications. STUDY HYPOTHESIS: We assumed that our center's results are similar to those reported in the literature, in terms of gender and anatomic characteristics, and different in terms of the number of syndromic cases. We also assume that only a few patients needed a second surgery and that this medical problem effects quality of life in term of cognitive impairment and aesthetic results...
May 2016: Harefuah
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