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Related Concept Videos

Bone Markings01:26

Bone Markings

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.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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...
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 Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Compact Bone01:27

Compact Bone

Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...

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Related Experiment Video

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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
11:51

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

Published on: February 10, 2014

Dynamic periosteal elevation.

Peter Kessler1, Lars Bumiller, Andreas Schlegel

  • 1Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glueckstrasse 11, D-91054 Erlangen, Germany. kessler@imed.mkg.uni-erlangen.de

The British Journal of Oral & Maxillofacial Surgery
|November 4, 2006
PubMed
Summary

Dynamic periosteal elevation, a novel technique, stimulates bone formation by lifting the periosteum. This minimally invasive method shows promise for craniofacial bone regeneration and reconstruction.

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Orthopedic Surgery

Background:

  • The periosteum possesses inherent osteoinductive potential.
  • Current methods for stimulating periosteal bone formation can be invasive.
  • A need exists for minimally invasive techniques to enhance bone regeneration.

Purpose of the Study:

  • To investigate the osteoinductive capacity of dynamic periosteal elevation.
  • To evaluate bone formation stimulated by periosteal distraction using a titanium mesh.
  • To assess the feasibility of this technique for clinical applications in craniofacial surgery.

Main Methods:

  • An animal study was conducted on 6 Goettingen minipigs.
  • A titanium mesh was surgically placed under the periosteum.
  • The mesh was then elevated, creating a distraction space for bone formation.

Main Results:

  • Significant bone formation was observed underneath the titanium mesh.
  • The newly formed bone exhibited micro-pillar structures, characteristic of osteodistraction.
  • The dynamic periosteal elevation technique demonstrated minimal invasion and low morbidity.

Conclusions:

  • Dynamic periosteal elevation effectively stimulates periosteal osteoinduction and bone formation.
  • This technique offers a minimally invasive approach to bone regeneration.
  • Potential clinical applications include craniomaxillofacial surgery, pre-implant augmentation, and skull reconstruction.