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distraction
相关语句
  牵张
    Three-dimensional Finite Element Study on Middle Face Advancement with Distraction Osteogenesis
    面中部牵张成骨有限元研究
短句来源
    Establishment of a three-dimensional finite element model of human mandibular distraction osteogenesis
    人下颌牵张成骨三维有限元模型的建立
短句来源
    Objective To find a new way of the repair of bone defect by studying the biocompatibility and the bone formation in distraction osteogenesis (DO) region of human bone morphogenetic protein2 (hBMP2) gene transfected bone marrow stromal cells combined with calcium alginate hydrogel in bone tissue engineering.
    目的探讨骨形态发生蛋白2(human bone morphogenetic protein2,hBMP2)基因转染的兔骨髓基质干细胞(bone marrow stromal cells,MSC)与藻酸钙凝胶的生物相容性及其应用于牵张成骨区的骨生成情况,为骨组织工程中骨缺损的修复寻找一种新的方法。
短句来源
    Methods The three-dimensional finite element model of the temporomandibular joint and the mandible was established , and the distraction forces were simulated on the model.
    方法通过建立颞下颌关节及下颌骨的三维有限元模型,在模型上模拟牵张力的作用,得到下颌骨牵张成骨过程中,颞下颌关节的受力状况。
短句来源
    Experimental study of 3-D external expansion appliance for zygomatic distraction osteogenesis
    颧骨三维牵张器的初步研制
短句来源
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  撑开
    Au Experimental and Biomechanical Study of Anterior Distraction between Cervical Vertebrae
    颈椎前路椎体间撑开的实验和生物力学研究
短句来源
    Mechanical Analysis of Occasional Failure for Anterior Distraction to Correct Spinal Kyphosis
    前路撑开矫正后凸畸形可能加重后凸的力学原因分析
短句来源
  “distraction”译为未确定词的双语例句
    The Influence of Vertical Loads upon the Stress of Harrington Distraction Rod by Photoelastricity
    垂直载荷对哈氏棒中应力影响的光弹性分析
短句来源
    In the destructive tensile tests, failure occurred at an average distraction force of (725.7±171.0) N and an average distraction displacement of (20.20±3.24) mm.
    在破坏性拉伸测试中,平均拉伸力为(725.7±171.0)N及平均位移为(20.20±3.24)mm时标本被破坏。
短句来源
    The average ultimate distraction force recorded for the 2 to 4-year-old specimens [(594.5±142.5) N] was found to be significantly lower (P< 0.05) than the corresponding average recorded for the 6 to 12-year-old specimens [(867.8±70.5) N].
    2~4岁组标本的平均最大拉伸力[(594.5±142.5)N]与6~12岁组标本的平均最大拉伸力[(867.8±70.5)N]相比差异有显著性意义(P<0.05)。
短句来源
    At result of vertical distraction,the atrophy alveolar were augmented(4.80±0.50)mm.
    牙槽骨高度平均增加(4.80±0.50)mm。
短句来源
    Experimental Studies on the Construction and Application in Distraction Osteogenesis of the Nano Cellular Injectable Tissue-engineered Bone
    可注射性细胞型纳米组织工程骨的构建及其应用于牵拉成骨的实验研究
短句来源
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  distraction
The PT was shown to correlate with the children's motor activity (0.52), approaching a new subject (0.39), distraction (-0.34), and the age of entering a nursery (-0.35).
      
We present three case reports demonstrating the use of distraction lengthening for symptomatic congenital short metatarsals.
      
In all three cases the distraction lengthening of the fourth metatarsal was performed with an external fixateur system aided by an intramedullary K-wire without any supplemental bone graft.
      
The arthrolysis can be performed using arthroscopy, the open technique or distraction arthroplasty.
      
Potential and Limitations of Cephalometric Analysis of Maxillofacial Bone Movement in the Case of LeFort III-Distraction
      
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The authors designed a new internal fixator for scoliosis---multi-screw fixed distractor-compressor via the vertebral pedicle.The new device has strong forces of fixation,distraction,compression and anti-rotation.It can produce free movememt in three-different levels and fix the vertebral column in three-dimensions.Its anti-rotaion ability is 34-46 per cent higher than that of Harrington-Luque rods,and is 35-48 per cent higher than that of two Luque rods.Its anti-lateral bend ability is 130-141 per cent...

The authors designed a new internal fixator for scoliosis---multi-screw fixed distractor-compressor via the vertebral pedicle.The new device has strong forces of fixation,distraction,compression and anti-rotation.It can produce free movememt in three-different levels and fix the vertebral column in three-dimensions.Its anti-rotaion ability is 34-46 per cent higher than that of Harrington-Luque rods,and is 35-48 per cent higher than that of two Luque rods.Its anti-lateral bend ability is 130-141 per cent higher than that of Harrington-Luque rods,and is 130-145 per cent higher than that of two Luque rods(P<0.001).

本文介绍一种经椎弓根多钉固定的撑压器,具有坚强的固定力,撑开、压缩和抗旋转能力达到脊柱三维固定的目的。经实验测定,其抗旋转能力比哈氏棒和鲁氏棒联合固定提高34.46%.比双根鲁氏棒固定提高35~48%。其抗弯能力是哈氏棒和鲁氏棒联合固定的130~141%,是双根鲁氏棒固定的130~145%(P<0.001)。

Seven fresh adult cadaver specimens of thoracolumbar segments (T 8-L 5) were used for the evaluation of the effects on spinal stability of the five kinds of internal fixation devices, namely the steffee plate, the Dick screw, the unilateral distraction Harrington rod, the united Harrington distraction combined with the Leque rod and the Leque rod. They were applied sequentially to each of the cadaver specimen injuried at the T 12 -L 1 levels. Three dimensional movements of the spine were...

Seven fresh adult cadaver specimens of thoracolumbar segments (T 8-L 5) were used for the evaluation of the effects on spinal stability of the five kinds of internal fixation devices, namely the steffee plate, the Dick screw, the unilateral distraction Harrington rod, the united Harrington distraction combined with the Leque rod and the Leque rod. They were applied sequentially to each of the cadaver specimen injuried at the T 12 -L 1 levels. Three dimensional movements of the spine were measured in each speciment following application of the fixation devices. The results revealed that rigid fixation in restoring the spinal stability in flexion, extension and lateral bendings were provided by all of the five kinds of posterior internal fixation devices, however, for axial rotations the effects of fixation were not as strong as that of the intact spine. Comparatively speaking, the Dick fixation device achieved better stability in arial rotations.

采用7具新鲜尸体胸腰段脊柱标本(T8~L5),损伤T12~L1的后部结构造成脊柱失稳。在失稳的脊柱标本上轮流安装5种常用后路内固定器械,分别进行脊柱稳定性测试,得出5种内固定器械对损伤节段的固定效果。结果表明,5种内固定器械对失稳脊柱节段的屈/伸及右/左侧弯运动均有良好的固定作用,但对轴向旋转运动均不能控制到完整脊柱的稳定水平。相对而言,Dick钉的作用较优。

The effectiveness of epiphyseal distraction was investigated in vivo and in vitro by forces applied to the distal femoral growth plates of New Zealand white immature rabbits. Distraction forces of 5N and 10N were applied every 3 days to the distal growth plate of the right femur in vivo, in 16 rabbits Four weeks later the length of all distracted femurs was significant longer than both the length of control side and the same one of group ON. Histological study showed hyperplasia of the growth plate,...

The effectiveness of epiphyseal distraction was investigated in vivo and in vitro by forces applied to the distal femoral growth plates of New Zealand white immature rabbits. Distraction forces of 5N and 10N were applied every 3 days to the distal growth plate of the right femur in vivo, in 16 rabbits Four weeks later the length of all distracted femurs was significant longer than both the length of control side and the same one of group ON. Histological study showed hyperplasia of the growth plate, an increase in chondrocytes division rate, and no evidence of epiphyseolysis. The in vitro breaking forces of the growth plate were measured after in vivo distraction. The mean breaking force of the distracted side was not lower than mean values for the undistracted control side. Sixteen femora from 8 rabbits underwent epiphseal distraction in vitro, with 20N, 60N and 100N forces. the mean plastic deformation of the growth plate was great in connection with increasing traction. The subsequence breaking force of these growth plates was no influenced. The results obtained in this study indicated that limb lengthening might be achieved by chondrodiatasis with the proper distraction force and/or a slow distraction rate.

本研究是对新西兰幼兔股骨远端骨骺进行体内和体外牵张实验.16只兔右股骨经5~10N力每3天一次牵张.4周后的股骨长度值明显大于左侧和0N组.形态学变化是受牵张的骺板增厚,软骨细胞增殖且无骨骺分离骨折.体外骺板抗断裂测试显示夸张后的骺板强度不低于未经牵张的对照侧.8只动物16根股骨于体外接受20~100N力的牵张,其骺板的塑性变形度随牵张力值的增高而增大,抗断裂强度亦不低于未经牵张的骨骺.这些结果表明适量的牵张力和/或低牵张速率是实现“软骨分离”或骨延长的关键.

 
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