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Cranial remodelling

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https://www.readbyqxmd.com/read/28281006/signal-reduction-of-donor-artery-on-mri-after-superficial-temporal-artery-to-middle-cerebral-artery-anastomosis-a-retrospective-analysis
#1
Satoshi Koizumi, Toshikazu Kimura, Tomohiro Inoue
OBJECT: Microsurgical anastomosis from the superficial temporal artery (STA) to the middle cerebral artery (MCA) is a treatment option for appropriately selected patients with cranial atherosclerotic steno-occlusive disease (CASD). However, the long-term efficacy and patency of the donor artery remain unclear. We reviewed the signal intensity of the donor artery on magnetic resonance angiography (MRA) after STA-MCA anastomosis in patients with CASD and clarified the incidence of and risk factors for reduction in postoperative signal of STA...
March 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28279556/management-options-of-non-syndromic-sagittal-craniosynostosis
#2
REVIEW
Bryan S Lee, Lee S Hwang, Gaby D Doumit, Joseph Wooley, Francis A Papay, Mark G Luciano, Violette M Recinos
There have been various effective surgical procedures for the treatment of non-syndromic sagittal craniosynostosis, but no definitive guidelines for management have been established. We conducted a study to elucidate the current state of practice and establish a warranted standard of care. An Internet-based study was sent to 180 pediatric neurosurgeons across the country and 102 craniofacial plastic surgeons in fourteen different countries, to collect data for primary indication for surgical management, preference for timing and choice of surgery, and pre-, peri-, and post-operative management options...
March 6, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28267479/left-ventricular-mass-geometry-and-silent-cerebrovascular-disease-the-cardiovascular-abnormalities-and-brain-lesions-cabl-study
#3
Koki Nakanishi, Zhezhen Jin, Shunichi Homma, Mitchell S V Elkind, Tatjana Rundek, Aylin Tugcu, Mitsuhiro Yoshita, Charles DeCarli, Clinton B Wright, Ralph L Sacco, Marco R Di Tullio
BACKGROUND: Although abnormal left ventricular geometric patterns have prognostic value for morbidity and mortality, their possible association with silent cerebrovascular disease has not been extensively evaluated. METHODS: We examined 665 participants in the CABL study who underwent transthoracic echocardiography and brain magnetic resonance imaging. Participants were divided into 4 geometric patterns: normal geometry (n=397), concentric remodeling (n=89), eccentric hypertrophy (n=126), and concentric hypertrophy (n=53)...
March 2017: American Heart Journal
https://www.readbyqxmd.com/read/28262513/analysis-of-the-cephalometric-changes-in-the-first-3-months-after-spring-assisted-cranioplasty-for-scaphocephaly
#4
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/28261893/astrocyte-activation-and-capillary-remodeling-in-a-modified-bilateral-common-carotid-artery-occlusion-mice
#5
Jiangman Song, Di Nan, Qihua He, Lu Yang, Huailian Guo
OBJECTIVE: The cerebral ischemia leads to brain dysfunction with neuron degeneration and responses from astrocytes and vessels. The aim of this study was to study the changes of astrocyte and microvessel in a modified bilateral common carotid artery occlusion (modified BCCAO) mice. METHODS: Adult transgenic Tie-2 GFP mice were subject to modified BCCAO operation and cranial window implantation. Cerebral blood flow and neurological injury was examined after ischemia...
March 6, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28238822/does-receiving-a-blood-transfusion-predict-for-length-of-stay-in-children-undergoing-cranial-vault-remodeling-for-craniosynostosis-outcomes-using-the-pediatric-national-surgical-quality-improvement-program-dataset
#6
Michael R Markiewicz, Tord Alden, Mohmed Vasim Momin, Alexis B Olsson, Ray J Jurado, Fizan Abdullah, Michael Miloro
PURPOSE: Recent interventions have aimed at reducing the need for blood transfusions in the perioperative period in patients with craniosynostosis undergoing cranial vault remodeling. However, little is known regarding whether the receipt of a blood transfusion influences the length of hospital stay. The purpose of this study was to assess whether the receipt of a blood transfusion in patients undergoing cranial vault remodeling is associated with an increased length of stay. MATERIALS AND METHODS: To address the research purposes, we designed a retrospective cohort study using the 2014 Pediatric National Surgical Quality Improvement Program (NSQIP Peds) dataset...
February 3, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28210410/a-case-of-glenoid-fossa-fracture-progressive-ankylosis-total-joint-reconstruction-with-alloplastic-prosthesis-to-normalized-function-including-evaluation-with-f18-pet-ct-a-four-year-follow-up
#7
Björn Lindell, Andreas Thor
Temporomandibular joint replacement (TJR) with alloplastic prosthesis has shown promising long-term results in end stage joint disorders. We present a case of young woman with painful ankylosis that where reconstructed with TJR, due to a complex mandibular fracture with dislocation of the left condyle into the middle cranial fossa two years earlier. At the age of 18 the subject underwent a total joint replacement with custom-made alloplastic TMJ prosthesis. To determine the bone response and remodeling activity around the prosthesis, a F18 PET/CT-scan was used...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28145932/a-surgical-technique-for-management-of-the-metopic-suture-in-syndromic-craniosynostosis
#8
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/27955948/array-focal-cortical-stimulation-enhances-motor-function-recovery-and-brain-remodeling-in-a-rat-model-of-ischemia
#9
Jing Yang, Lu Liu, Tao Li, Chengyan Li
OBJECTIVE: Using a new microelectrode array implanted into the cranial window employing a new stimulation protocol, we investigated the effects of the implanted electrode arrays on both motor map plasticity and neural regeneration in a rodent model of stroke. MATERIALS AND METHODS: Rats were pretrained on single-pellet retrieval task, then received focal ischemic infarction and microelectrode arrays implantation. Rats in the cortical stimulation (CS) group received daily electrical stimulation (1 hour each day) for 14 days whereas animals in the no stimulation (NS) group did not receive electrical stimulation and only underwent motor mapping...
December 9, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27843719/cranial-bone-histology-of-metoposaurus-krasiejowensis-amphibia-temnospondyli-from-the-late-triassic-of-poland
#10
Kamil Gruntmejer, Dorota Konietzko-Meier, Adam Bodzioch
In this study, 21 skull bones of Metoposaurus krasiejowensis from the Late Triassic of Poland were investigated histologically. Dermal bones show a diploë structure, with an ornamented external surface. The ridges consist of mostly well vascularized parallel-fibered bone; the valleys are built of an avascular layer of lamellar bone. The thick middle region consists of cancellous bone, with varying porosity. The thin and less vascularized internal cortex consists of parallel-fibered bone. The numerous Sharpey's fibers and ISF are present in all bones...
2016: PeerJ
https://www.readbyqxmd.com/read/27837399/reconstruction-of-the-shallow-acetabulum-with-a-combination-of-autologous-bulk-and-impaction-bone-grafting-fixed-by-cement
#11
Masaaki Maruyama, Shinji Wakabayashi, Hiroshi Ota, Keiji Tensho
BACKGROUND: Acetabular bone deficiency, especially proximal and lateral deficiency, is a difficult technical problem during primary total hip arthroplasty (THA) in developmental dysplasia of the hip (DDH). We report a new reconstruction method using a medial-reduced cemented socket and additional bulk bone in conjunction with impaction morselized bone grafting (additional bulk bone grafting method). QUESTIONS/PURPOSES: In a population of patients with acetabular dysplasia undergoing THA using a medial-reduced cemented socket and additional bulk bone with impacted morselized bone grafting, we evaluated (1) the radiographic appearance of bone graft; (2) the proportion of cups that developed loosening and subsequent revision; and (3) clinical results (outcome scores and complications)...
February 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27819403/-treatment-of-syringomyelia-in-patients-with-chiari-malformation-and-craniosynostosis-a-case-report-and-review-of-the-literature
#12
A Aransay-Garcia, F J Villarejo-Ortega
INTRODUCTION: Patients with multisutural or single craniosynostosis, often suffer from Chiari malformation and syringomyelia. The surgical management of syringomyelia in these patients is controversial. CASE REPORT: A 3-year-old girl was referred with complex craniosynostosis that had not been corrected surgically. She was asymptomatic despite the cranial MRI showed a Chiari malformation and one year later she developed a cervico-dorso-lumbar syringomyelia. She underwent a decompressive suboccipital craniectomy but subsequently suffered a worsening of syringomyelia...
November 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27817118/continued-growth-after-fixation-of-slipped-capital-femoral-epiphysis
#13
Per Holmdahl, Torsten Backteman, Aina Danielsson, Johan Kärrholm, Jacques Riad
PURPOSE: When treating slipped capital femoral epiphysis (SCFE), a smooth pin with a hook or a short threaded screw can be used to allow further growth, which could be important to prevent the development of impingement and early arthritis. The purpose of this investigation was to measure growth in three dimensions after fixation of SCFE. METHODS: Sixteen participants with unilateral SCFE, nine girls and seven boys with a median age of 12.0 years (range 8.4-15...
December 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27802079/mandibular-and-glenoid-fossa-changes-after-bone-anchored-maxillary-protraction-therapy-in-patients-with-uclp-a-3-d-preliminary-assessment
#14
Marilia Yatabe, Daniela Garib, Renato Faco, Hugo de Clerck, Bernardo Souki, Guilherme Janson, Tung Nguyen, Lucia Cevidanes, Antonio Ruellas
OBJECTIVE: To assess mandibular and glenoid fossa (GF) changes after bone-anchored maxillary protraction (BAMP) therapy in patients with unilateral complete cleft lip and palate (UCLP). MATERIALS AND METHODS: The cleft group (CG) comprised 19 patients with (mean initial age of 11.8 years). The noncleft group (NCG) comprised 24 patients without clefts (mean initial age of 11.7 years). Both groups had Class III malocclusion and were treated with BAMP therapy for 18 and 12 months, respectively...
September 26, 2016: Angle Orthodontist
https://www.readbyqxmd.com/read/27770634/repair-of-bone-defects-in%C3%A2-vivo-using-tissue-engineered-hypertrophic-cartilage-grafts-produced-from-nasal-chondrocytes
#15
Katie Bardsley, Agnieska Kwarciak, Christine Freeman, Ian Brook, Paul Hatton, Aileen Crawford
The regeneration of large bone defects remains clinically challenging. The aim of our study was to use a rat model to use nasal chondrocytes to engineer a hypertrophic cartilage tissue which could be remodelled into bone in vivo by endochondral ossification. Primary adult rat nasal chondrocytes were isolated from the nasal septum, the cell numbers expanded in monolayer culture and the cells cultured in vitro on polyglycolic acid scaffolds in chondrogenic medium for culture periods of 5-10 weeks. Hypertrophic differentiation was assessed by determining the temporal expression of key marker genes and proteins involved in hypertrophic cartilage formation...
October 11, 2016: Biomaterials
https://www.readbyqxmd.com/read/27607110/the-effects-of-molding-helmet-therapy-on-spring-mediated-cranial-vault-remodeling-for-sagittal-craniosynostosis
#16
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
#17
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
#18
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/27571325/development-of-the-epaxial-muscles-in-the-human-embryo
#19
Hayelom K Mekonen, Jill P J M Hikspoors, Greet Mommen, S Eleonore KÖhler, Wouter H Lamers
Although the intrinsic muscles of the back are defined by their embryological origin and innervation pattern, no detailed study on their development is available. Human embryos (5-10 weeks development) were studied, using Amira3D® reconstruction and Cinema4D® remodeling software for visualization. At Carnegie Stage (CS)15, the epaxial portions of the myotomes became identifiable laterally to the developing vertebrae. At CS16, these portions fused starting cranially to form a longitudinal muscle column, which became innervated by the dorsal branches of the spinal nerves...
November 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27558363/pediatric-cranial-intraosseous-hemangiomas-a-review
#20
REVIEW
G Lakshmi Prasad, Kanthilatha Pai
Hemangiomas are benign, slow-growing tumors composed of sinusoidal blood vessels. Skeletal hemangiomas are uncommon and are mostly vertebral, followed by cranial in location. Cranial hemangiomas are very rarely encountered in children. Authors report a 12-year girl who presented with a painless enlarging mass over the parietal scalp for 3 months. Imaging revealed a left parietal intraosseous lytic mass with a sunburst appearance. Enbloc removal and cranioplasty was performed, and histopathology was suggestive of hemangioma...
August 25, 2016: Neurosurgical Review
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