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Related Concept Videos

Bone Structure01:55

Bone Structure

Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Bone as Supporting Connective Tissue01:23

Bone as Supporting Connective Tissue

Bone tissue forms the internal skeleton of vertebrate animals, providing structure to the body.
Bone Matrix
Bone, or osseous tissue, is a connective tissue that has a large amount of two different types of matrix material. The organic matrix is similar to the matrix material found in other connective tissues, including some amount of collagen and elastic fibers. This gives strength and flexibility to the tissue. The inorganic matrix consists of mineral salts— mostly calcium salts— that give the...

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Related Experiment Video

Updated: Jul 4, 2026

Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
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Development of Bioactive Scaffolds for Orthopedic Applications by Designing Additively Manufactured Titanium Porous

Mikhail V Kiselevskiy1,2, Natalia Yu Anisimova1,2, Alexei V Kapustin3

  • 1N.N. Blokhin National Medical Research Center of Oncology (N.N. Blokhin NMRCO), Ministry of Health of the Russian Federation, 115478 Moscow, Russia.

Biomimetics (Basel, Switzerland)
|November 24, 2023
PubMed
Summary

Additive manufacturing enables the creation of porous titanium scaffolds for bioactive implants. These scaffolds offer tunable mechanical properties and drug delivery capabilities for orthopedic applications.

Keywords:
additive manufacturingbioactive scaffoldsbiocompatibilityfinite element simulationmechanical propertiesmicrostructurepore designporous materialstitanium alloys

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Area of Science:

  • Biomaterials Engineering
  • Orthopedic Implants
  • Additive Manufacturing

Background:

  • Porous titanium alloys are promising for orthopedic implants.
  • Selective laser melting allows for precise control over scaffold architecture.
  • Biocompatible materials are crucial for implant integration.

Purpose of the Study:

  • To overview recent findings in model-driven development of additively manufactured porous materials.
  • To explore the potential of these materials for a new generation of bioactive orthopedic implants.
  • To analyze advances, challenges, and solutions in this field.

Main Methods:

  • Model-driven design approaches for porous structures.
  • Virtual testing of engineered scaffold properties.
  • Additive printing techniques, specifically selective laser melting.
  • Analysis of biomedical integration and drug delivery.

Main Results:

  • Porous titanium scaffolds exhibit regulated mechanical properties and drug-loading capacity.
  • Adjustable pore geometry influences elastic modulus and strength/fatigue, preventing stress shielding.
  • Internal porosity and surface roughness promote vascularization and osteointegration.
  • Potential for localized delivery of antibiotic and anti-tumor agents.

Conclusions:

  • Model-driven development and additive manufacturing offer a pathway to advanced bioactive orthopedic implants.
  • Customizable porous structures can improve implant compatibility and therapeutic efficacy.
  • Addressing current challenges will further enhance the clinical translation of these technologies.