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Related Concept Videos

Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
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Fractures: Bone Repair01:27

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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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Blood and Nerve Supply to the Bones01:29

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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.
Nutrient Artery
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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What is a Nervous System?01:25

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Overview
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Bone as Supporting Connective Tissue01:23

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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—...
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Spongy Bone01:09

Spongy Bone

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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
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Related Experiment Video

Updated: Aug 30, 2025

Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
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Nervous System-Driven Osseointegration.

Ruoyue Sun1, Long Bai2,3, Yaru Yang4

  • 1Key Laboratory for Ultrafine Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

International Journal of Molecular Sciences
|August 26, 2022
PubMed
Summary
This summary is machine-generated.

The nervous system significantly influences osseointegration, the process by which bone fuses with implants. Understanding this neuromodulation can help prevent implant failures like aseptic loosening.

Keywords:
nerve cellnervous systemneuropeptideneurotrophinosseointegration

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Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Neuroscience

Background:

  • Osseointegration is critical for implant success in bone fracture and joint replacement therapies.
  • Aseptic loosening remains a primary cause of late implant failure, despite extensive research.
  • Osseointegration involves complex interactions between the immune system, blood vessel formation, and bone growth.

Purpose of the Study:

  • To systematically review research on nervous system involvement in osseointegration.
  • To highlight the significant role of neuromodulation in enhancing osseointegration.
  • To explore novel implant designs that leverage neuromodulation to prevent aseptic loosening.

Main Methods:

  • Systematic literature review and analysis of existing research.
  • Examination of the mechanisms by which the nervous system influences skeletal health.
  • Evaluation of neurotrophins, neuropeptides, and nerve cells in the context of osseointegration.

Main Results:

  • The nervous system plays a pivotal role in regulating skeletal health.
  • Neuromodulation emerges as a key factor influencing the success of osseointegration.
  • Evidence suggests a strong link between neural regulation and implant-bone fusion.

Conclusions:

  • The nervous system's influence on osseointegration is substantial and warrants further investigation.
  • Targeting neuromodulation pathways presents a promising strategy for improving implant integration.
  • Future implant designs should consider neural integration to mitigate aseptic loosening and enhance long-term implant survival.