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相关概念视频

Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
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相关实验视频

Updated: May 21, 2025

Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models
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在儿科上肢外部固定器和延长系统.

Nunzio Catena1, Chiara Arrigoni1, Marcos Carvalho2

  • 1Hand Surgery and Reconstructive Microsurgery Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy.

Journal of children's orthopaedics
|March 20, 2025
PubMed
概括

外部固定器在骨科手术中对延长骨至关重要,特别是在儿科上肢中用于各种疾病. 虽然单轴固定器仍然很重要,但像六足系统这样的新技术可能为复杂的形提供未来的解决方案.

关键词:
外部固定装置的外部固定装置儿科变形症儿童变形症上部四肢的上部四肢是什么

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Last Updated: May 21, 2025

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Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
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科学领域:

  • 整形外科手术 整形外科手术
  • 生物机械工程 生物机械工程
  • 儿科整形外科 儿科整形外科

背景情况:

  • 外部固定器是整形外科手术实践的组成部分.
  • 固定器设计和生物力学方面的进步改善了骨延长技术.
  • 分心骨质生成是骨延长的一个关键生物学原理.

研究的目的:

  • 对儿科上肢应用中的外部固定器和延长系统的文献进行审查.
  • 探索上肢外部固定的迹象和挑战.
  • 为了比较不同的固定方法来延长部和前臂形纠正.

主要方法:

  • 对外固定器和延长系统在儿科上肢应用的文献综述.
  • 分析症状,包括创伤,先天性疾病,瘤和感染.
  • 评估单边,圆形,单轴和六脚架系统.

主要成果:

  • 在上肢使用外部固定器较低于下肢使用较少,但适用于不同的病因.
  • 关于最佳固定方法的辩论仍在继续,特别是在部延长和前臂形方面.
  • 单轴固定器被广泛使用,但电动化内指甲可能会超越它们,以延长部.
  • 六足系统在多面前臂形方面表现有前途.

结论:

  • 外部固定仍然与儿科上肢疾病有关,尽管技术在不断发展.
  • 需要进一步的多中心研究来验证先进系统的有效性,如六足.
  • 不同的固定方法之间的选择需要仔细考虑具体的临床情景.