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Bone Fusion

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https://www.readbyqxmd.com/read/28213747/bone-morphogenetic-protein-2-for-the-treatment-of-congenital-pseudarthrosis-of-the-tibia-or-persistent-tibial-nonunion-in-children-and-adolescents-a-retrospective-study-with-a-minimum-2-year-follow-up
#1
Tim N Hissnauer, Norbert Stiel, Kornelia Babin, Martin Rupprecht, Michael Hoffmann, Johannes M Rueger, Ralf Stuecker, Alexander S Spiro
There is a lack of studies reporting on rhBMP-2 application in pediatric orthopaedics, although few reports demonstrated promising results of the use of rhBMP-2 in children, especially for spine fusion and for the treatment of congenital pseudarthrosis of the tibia. The objectives of this study were (1) to examine clinical and radiographic healing after rhBMP-2 application for the treatment of congenital pseudarthrosis of the tibia (CPT) or persistent tibial nonunion in children and adolescents, and (2) to investigate the safety of rhBMP-2 use in these cases...
April 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28207671/a-silver-medal-winner-at-the-13th-world-wu-shu-championship-2015-17-months-after-selective-thoracic-fusion-for-adolescent-idiopathic-scoliosis-a-case-report
#2
Chris Yin Wei Chan, Izzuddin Aziz, Fong Wei Chai, Mun Keong Kwan
STUDY DESIGN: Case report. OBJECTIVE: To report the successful rehabilitation and the training progress of an elite high performance martial art exponent after selective thoracic fusion for Adolescent Idiopathic Scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Posterior spinal fusion for AIS will result in loss of spinal flexibility. The process of rehabilitation after posterior spinal fusion for AIS remains controversial and there are few reports of return to elite sports performance after posterior spinal fusion for AIS...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207623/feasibility-of-percutaneous-posterolateral-spinal-fusion-with-recombinant-bone-morphogenetic-protein-2-rhbmp-2-a-comparison-with-standard-methods-using-an-animal-model-study
#3
Chris Yin Wei Chan, Mun Keong Kwan, Lim Beng Saw, Hussin Paisal
BACKGROUND CONTEXT: The clinical application of recombinant bone morphogenetic protein in spinal surgery has been shown to be safe and effective. However, its use in minimally invasive spine surgery has been limited to anterior interbody fusion procedures. To date, no study has evaluated the feasibility of percutaneous posterolateral fusion in the spine utilizing recombinant bone morphogenetic protein-2 (rhBMP-2). PURPOSE: To evaluate the feasibility of percutaneous posterolateral fusion in the spine utilizing rhBMP-2...
March 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28207621/mri-based-decision-making-of-implant-removal-in-deep-wound-infection-after-instrumented-lumbar-fusion
#4
Masahiro Kanayama, Tomoyuki Hashimoto, Keiichi Shigenobu, Fumihiro Oha, Akira Iwata, Masaru Tanaka
STUDY DESIGN: A retrospective study. OBJECTIVE: The aim of the study was to review the treatment of deep wound infection after posterior instrumented lumbar fusion, and thereby to optimize the decision-making process of implant removal or retention on the basis of magnetic resonance imaging (MRI) assessment. SUMMARY OF BACKGROUND DATA: Biofilm formed on the surface of the spinal implant prevents infiltration of antibiotics and makes the infection treatment more complicated...
March 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28207619/iliac-crest-regeneration-a-retrospective-study-of-14-years-of-follow-up
#5
Anastasios Christodoulou, Achilleas Boutsiadis, Evangellos Christodoulou, Petros Antonarakos, Panagiotis Givissis, Ippokratis Hatzokos
STUDY DESIGN: This is a retrospective study analysis. OBJECTIVE: The purpose of our study was to evaluate the healing process of the ilium after being used as a bone graft donor site in the treatment of adolescent idiopathic scoliosis. SUMMARY OF BACKGROUND DATA: Iliac crest bone grafts have been proven to be the most reliable means for solid fusion in spine surgery. Nevertheless, few reports in the literature describe the ability of the iliac crest to regenerate...
March 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28203028/-unerupted-first-deciduous-molar-located-higher-to-the-first-premolar-a-case-report
#6
Y Zhan, H Liu
Tooth eruption is defined as the movement of a tooth from its site of development within the alveolar process to its functional position in the oral cavity. The process of tooth eruption can be divided into different phases: pre-eruptive bone stage, alveolar bone stage, mucosal stage, preocclusal stage, occlusal stage and maturation stage. Any disturbance in these phases can lead to eruptive anomalies. The incidence of unerupted teeth is usually higher among permanent teeth than among deciduous ones. Of the primary teeth reported as unerupted, second deciduous molars are the teeth most frequently involved, followed by primary central incisors...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202380/impact-of-surgical-site-infection-and-surgical-debridement-on-lumbar-arthrodesis-a-single-institution-analysis-of-incidence-and-risk-factors
#7
Timothy Y Wang, Adam G Back, Eliza Hompe, Kevin Wall, Oren N Gottfried
This study identifies the rate of pseudarthrosis following surgical debridement for deep lumbar spine surgical site infection and identify associated risk factors. Patients who underwent index lumbar fusion surgery from 2013 to 2014 were included if they met the following criteria: 1) age >18years, 2) had debridement of deep lumbar SSI, and had 3) lumbar spine AP, lateral and flexion/extension X-rays and computed tomography (CT) at 12months or greater postoperatively. Criteria for fusion included 1) solid posterolateral, facet, or disk space bridging bone, 2) no translational or angular motion on flexion/extension X-rays, and 3) intact posterior hardware without evidence of screw lucency or breakage...
February 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28199936/the-longitudinal-split-technique-for-narrow-canal-tibia-in-a-case-of-distal-femur-replacement-for-osteosarcoma
#8
Toru Akiyama, Shotaro Kanda, Kazuo Saita
INTRODUCTION: There are currently no available prostheses that can be used for extremely small femurs or tibias of adult patients in countries where allograft is unavailable. CASE REPORT: We report the case of a 17-year-old girl requiring special limb salvage technique for distal femur reconstruction following resection of malignant tumor. This technique was needed because of a very narrow canal of the tibia. We split bilateral tibial cortices longitudinally with osteotomies to enlarge tibial canal enough to insert conventional endoprosthesis...
January 31, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28199142/dc-stamp-is-an-osteoclast-fusogen-engaged-in-periodontal-bone-resorption
#9
W Wisitrasameewong, M Kajiya, A Movila, S Rittling, T Ishii, M Suzuki, S Matsuda, Y Mazda, M R Torruella, M M Azuma, K Egashira, M O Freire, H Sasaki, C Y Wang, X Han, M A Taubman, T Kawai
Dendritic cell-specific transmembrane protein (DC-STAMP) plays a key role in the induction of osteoclast (OC) cell fusion, as well as DC-mediated immune regulation. While DC-STAMP gene expression is upregulated in the gingival tissue with periodontitis, its pathophysiological roles in periodontitis remain unclear. To evaluate the effects of DC-STAMP in periodontitis, anti-DC-STAMP-monoclonal antibody (mAb) was tested in a mouse model of ligature-induced periodontitis ( n = 6-7/group) where Pasteurella pneumotropica ( Pp)-reactive immune response activated T cells to produce receptor activator of nuclear factor kappa-B ligand (RANKL), which, in turn, promotes the periodontal bone loss via upregulation of osteoclastogenesis...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28197660/radiographic-and-surgical-considerations-in-arthritis-surgery-of-the-hand
#10
REVIEW
Violeta Nikac, Philip Blazar, Brandon Earp, Barbara N Weissman
Indications for hand surgeries include unremitting joint pain, deformity and stiffness, often secondary to arthritis. Several surgical options are available, including arthrodesis (fusion) and joint arthroplasty. Classically arthrodesis is performed in situations with poor bone stock and supporting soft tissues. Arthroplasty is reserved for patients and joints in which preservation of function is important and bone stock and soft tissue support are adequate. In this article we will review various techniques for arthrodesis and arthroplasty, their post-surgical imaging appearance, including key findings important to surgeons, and the findings that indicate post-surgical complications...
February 14, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28196468/posterior-pedicle-screw-fixation-to-treat-lower-cervical-fractures-associated-with-ankylosing-spondylitis-a-retrospective-study-of-35-cases
#11
Liang Yan, Zhenguo Luo, Baorong He, Jijun Liu, Dingjun Hao
BACKGROUND: The most common site of fractures in patients with ankylosing spondylitis (AS) is the cervical spine, especially the lower cervical spine and cervicothoracic junction. The optimal treatment for cervical spine fractures secondary to AS is controversial. This study aimed to explore the effects of posterior pedicle screw fixation alone on fractures of the lower cervical spine in patients with AS. METHODS: From January 2006 to January 2013, a total of 35 patients with AS and a lower cervical spine fracture were treated using only posterior cervical/thoracic pedicle screw fixation...
February 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28192267/posterior-only-vertebral-column-resection-for-the-treatment-of-severe-spinal-deformities-in-pediatric-patients-a-retrospective-case-series
#12
Malte Schroeder, Lennart Viezens, Philip Kunkel, Karsten Ridderbusch, Tim Nicolas Hissnauer, Oliver Dirk Jungesblut, Michael Hoffmann, Johannes Maria Rueger, Ralf Stuecker
OBJECTIVE: The treatment of severe spinal deformities in pediatric patients is very challenging. Posterior only vertebral column resection (PVCR) allows for correcting of severe deformities of the vertebral column via a posterior only procedure. We analyzed radiological outcome of PVCR performed on a series of pediatric patients with severe congenital and acquired spinal deformities. METHODS: A case series of eleven pediatric patients with severe spinal deformity who were treated by PVCR between 2009 and 2013 were retrospectively analyzed...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28187462/recombinant-tat-bmi-1-fusion-protein-induces-ex-vivo-expansion-of-human-umbilical-cord-blood-derived-hematopoietic-stem-cells
#13
Bruna Codispoti, Nicola Rinaldo, Emanuela Chiarella, Michela Lupia, Cristina Barbara Spoleti, Maria Grazia Marafioti, Annamaria Aloisio, Stefania Scicchitano, Marco Giordano, Giovanna Nappo, Valeria Lucchino, Malcolm A S Moore, Pengbo Zhou, Maria Mesuraca, Heather Mandy Bond, Giovanni Morrone
Transplantation of hematopoietic stem cells (HSCs) is a well-established therapeutic approach for numerous disorders. HSCs are typically derived from bone marrow or peripheral blood after cytokine-induced mobilization. Umbilical cord blood (CB) represents an appealing alternative HSC source, but the small amounts of the individual CB units have limited its applications. The availability of strategies for safe ex vivo expansion of CB-derived HSCs (CB-HSCs) may allow to extend the use of these cells in adult patients and to avoid the risk of insufficient engraftment or delayed hematopoietic recovery...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28187368/outcomes-of-autograft-alone-versus-peek-autograft-interbody-fusion-in-the-treatment-of-adult-lumbar-isthmic-spondylolisthesis
#14
Gang Wang, Dunfu Han, Zhenglin Cao, Honggang Guan, Tianhang Xuan
OBJECTIVES: Bone resulting from a complete resection of the posterior arch can be cut into an autograft bone that contains the facet joint structure and morselised bone for interbody fusion. However, whether a strut autograft that contains this trimmed facet joint can produce the same clinical and radiographic outcomes as a cage for interbody fusion remains unclear. The aim of this study was to compare the outcomes of a local facet joint autograft alone to those of polyetheretherketone (PEEK)+autograft for posterior lumbar interbody fusion (PLIF) in the treatment of adult isthmic spondylolisthesis...
January 31, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28187068/ct-based-three-dimensional-measurements-of-spine-shortening-distance-after-posterior-three-column-osteotomies-for-the-treatment-of-severe-and-stiff-scoliosis
#15
Xue-Shi Li, Zi-Fang Huang, Yao-Long Deng, Heng-Wei Fan, Wen-Yuan Sui, Chong-Wen Wang, Jun-Lin Yang
STUDY DESIGN: Retrospective Study. OBJECTIVES: This study is to measure and analyze the changes of three-dimensional distances of spinal column and spinal canal at the three-column osteotomy sites and address their clinical and neurologic significance. SUMMARY OF BACKGROUND DATA: Three-column osteotomies were developed to treat severe and stiff spine deformities with insufficient understanding on the safe limit of spine shortening and the relationship between the shortening distance of the spinal column and that of the spinal canal...
February 9, 2017: Spine
https://www.readbyqxmd.com/read/28186604/-clinical-and-genetic-features-of-a-patient-with-myeloid-neoplasm-in-association-with-pdgfra-and-evi1-gene-rearrangements
#16
Wenmin Han, Hongying Chao, Min Zhou, Ling Cen, Suning Chen, Xuefeng He, Xuzhang Lu
OBJECTIVE: Todelineate the clinical and genetic features of a patient with myeloproliferative neoplasm (MPN) in association with PDGFRA and EVI1 genes rearrangements. METHODS: Clinical data of the patient was collected. Conventional cytogenetics, fluorescence in situ hybridization (FISH) and nested PCR were carried out for the patient. RESULTS: The patient has featured recurrent rash, joint pain, and intermittent fever. Laboratory tests showed hyperleukocytosis and marked eosinophilia...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28186602/-analysis-of-isodicentric-ph-chromosomes-in-chronic-myeloid-leukemia-blast-crisis
#17
Qian Li, Xiaoji Lin, Ying Lin, Rongxin Yao, Wu Huang, Handong Mei, Jian Gong, Hui Chen, Ningyan Teng
OBJECTIVE: To explore the genetic and clinical characteristics of isodicentric Ph chromosomes [idic(Ph)] in lymphoid blast crisis of chronic myeloid leukemia (CML-BLC). METHODS: Bone marrow aspirates of 2 patients with CML-BLC were analyzed by R banding after 24 hours of culturing. Genomic copy number variations (CNV) were analyzed by single nucleotide polymorphism array (SNP array) in case 1. The results were confirmed with fluorescence in situ hybridization (FISH)...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28186136/foxo1-suppressed-mir-424-regulates-the-proliferation-and-osteogenic-differentiation-of-mscs-by-targeting-fgf2-under-oxidative-stress
#18
Liangping Li, Qihua Qi, Jiaquan Luo, Sheng Huang, Zemin Ling, Manman Gao, Zhiyu Zhou, Maik Stiehler, Xuenong Zou
Recently, microRNAs (miRNAs) have been identified as key regulators of the proliferation and differentiation of mesenchymal stem cells (MSCs). Our previous in vivo study and other in vitro studies using miRNA microarrays suggest that miR-424 is involved in the regulation of bone formation. However, the role and mechanism of miR-424 in bone formation still remain unknown. Here, we identified that the downregulation of miR-424 mediates bone formation under oxidative stress, and we explored its underlying mechanism...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28185911/transcriptome-analysis-of-monozygotic-twin-brothers-with-childhood-primary-myelofibrosis
#19
Nan Ding, Zhaojun Zhang, Wenyu Yang, Lan Ren, Yingchi Zhang, Jingliao Zhang, Zhanqi Li, Peihong Zhang, Xiaofan Zhu, Xiaojuan Chen, Xiangdong Fang
Primary myelofibrosis (PMF) is a chronic myeloproliferative disorder in human bone marrow. Over 50% of patients with myelofibrosis have mutations in JAK2, MPL, or CALR. However, these mutations are rarely detected in children, suggesting a difference in the pathogenesis of childhood PMF. In this study, we investigated the response to drug treatment of a monozygotic twin pair with typical childhood PMF. The twin exhibited different clinical outcomes despite following the same treatment regimen. The transcriptomic profiles of patient samples after drug treatment (E2 and Y2) were significantly different between the twin pair, which is consistent with the observation that the drug treatment was effective only in the younger brother, despite the twin being genetically identical...
February 6, 2017: Genomics, Proteomics & Bioinformatics
https://www.readbyqxmd.com/read/28185243/staphylococcal-protein-a-promotes-osteoclastogenesis-through-mapk-signaling-during-bone-infection
#20
Yuan Wang, Xin Liu, Ce Dou, Zhen Cao, Chuan Liu, Shiwu Dong, Jun Fei
Bone infection is a common and serious complication in the orthopedics field, which often leads to excessive bone destruction and non-union. Osteoclast is the only type of cells which have the function of bone resorption. Its over activation is closely related to excessive bone loss. Staphylococcus aureus (S.aureus) is a major pathogen causing bone infection, which can produce a large number of strong pathogenic substances staphylococcal protein A (SPA). However, few studies were reported about the effects of SPA on osteoclastogenesis...
February 10, 2017: Journal of Cellular Physiology
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