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Related Concept Videos

Blood and Nerve Supply to the Bones01:29

Blood and Nerve Supply to the Bones

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Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
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The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...
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Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
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Related Experiment Video

Updated: Apr 18, 2026

Visualizing Angiogenesis by Multiphoton Microscopy In Vivo in Genetically Modified 3D-PLGA/nHAp Scaffold for Calvarial Critical Bone Defect Repair
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Vascularization in bone tissue engineering constructs.

Ángel E Mercado-Pagán1, Alexander M Stahl, Yaser Shanjani

  • 1Department of Orthopedic Surgery, Stanford University, 300 Pasteur Drive, Edwards R155, Stanford, CA, 94305, USA.

Annals of Biomedical Engineering
|January 25, 2015
PubMed
Summary
This summary is machine-generated.

Vascularization remains a key challenge in bone tissue engineering (BTE), hindering clinical use of engineered bone grafts. This review explores strategies for creating functional vascular networks to improve bone integration and function.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Vascularization of large bone grafts is a critical hurdle in bone tissue engineering (BTE), delaying clinical translation of engineered bone constructs for 20 years.
  • The primary objective of vascularized BTE constructs is to establish functional vascular networks for enhanced osseointegration and accelerated functional restoration post-implantation.
  • Achieving both structural and vascular integration of bone grafts necessitates evaluation of numerous biomaterials, cells, and biological cues.

Purpose of the Study:

  • To review biological considerations for restoring bone function.
  • To examine current approaches for managing large bone defects and their limitations.
  • To present state-of-the-art research on vascularized bone construct development and future clinical implementation perspectives.

Main Methods:

  • Review of existing literature on bone tissue engineering and regenerative medicine.
  • Analysis of contemporary clinical salvage techniques for large bone defects.
  • Synthesis of research findings on the development of vascularized bone constructs.

Main Results:

  • Identified vascularization as the principal challenge in BTE, impacting clinical translation.
  • Highlighted the need for multi-level graft integration for successful outcomes.
  • Emphasized the potential of vascularized tissue constructs to advance BTE and regenerative medicine.

Conclusions:

  • Successful bone graft integration requires hierarchical integration of graft components and host tissues.
  • The paradigm of vascularized tissue constructs offers revolutionary potential for BTE.
  • This approach can be extended to develop innovative vascularized tissue designs in other regenerative medicine fields.