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Recent advancement in vascularized tissue-engineered bone based on materials design and modification.

Hao Liu1, Hao Chen1, Qin Han1

  • 1Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China.

Materials Today. Bio
|November 29, 2023
PubMed
Summary

This review discusses vascularized bone tissue engineering, focusing on pre-vascularization strategies to improve bone regeneration. It explores methods for creating vascular networks in bone scaffolds for immediate implantation and better clinical outcomes.

Keywords:
BiomaterialBone tissue engineeringPre-vascularizationVascularization

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Vascular Biology

Background:

  • The vascular system is crucial for bone development, homeostasis, and regeneration.
  • Restoring vascularity in damaged bone is a significant therapeutic challenge.
  • Current bone tissue engineering scaffolds often lack sufficient vascularization.

Purpose of the Study:

  • To review the relationship between the vascular system and osteogenesis.
  • To discuss surgical and cytotechnology-based pre-vascularization strategies for bone scaffolds.
  • To describe the preparation of immediately implantable vascularized bone tissue engineered scaffolds.

Main Methods:

  • Literature review on vascularization and osteogenesis.
  • Analysis of in vivo and in vitro pre-vascularization techniques.
  • Discussion of scaffold preparation for immediate implantation.

Main Results:

  • Pre-vascularization techniques enhance scaffold blood supply but can be time-consuming or invasive.
  • Optimized scaffold preparation is needed for immediate implantation of vascularized bone.
  • Understanding vascular-osteogenesis links is key to scaffold design.

Conclusions:

  • Vascularized bone tissue engineering offers a promising solution for critical bone defects.
  • Further research into efficient pre-vascularization strategies is essential for clinical translation.
  • This review provides a foundation for developing next-generation vascularized bone scaffolds.