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Related Concept Videos

Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
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...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Development of the Limb Synovial Joints01:07

Development of the Limb Synovial Joints

Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Bone Remodeling and Repair01:31

Bone Remodeling and Repair

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...

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Related Experiment Video

Updated: May 20, 2026

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Published on: July 22, 2021

Achievements during the Bone and Joint Decade 2000-2010.

Peter Choong1, Peter Brooks

  • 1Department of Surgery, University of Melbourne, St. Vincent's Hospital Melbourne, Vic, Australia.

Best Practice & Research. Clinical Rheumatology
|July 17, 2012
PubMed
Summary

Advances in treating musculoskeletal diseases offer hope for preventing joint destruction. Innovations in regenerative medicine, surgery, and care models aim to improve outcomes for an aging population facing these conditions.

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Automated Joint Space Detection Improves Bone Segmentation Accuracy
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Automated Joint Space Detection Improves Bone Segmentation Accuracy

Published on: November 28, 2025

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Last Updated: May 20, 2026

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

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Automated Joint Space Detection Improves Bone Segmentation Accuracy
06:45

Automated Joint Space Detection Improves Bone Segmentation Accuracy

Published on: November 28, 2025

Area of Science:

  • Orthopedics and Regenerative Medicine
  • Biotechnology and Nanotechnology
  • Healthcare Management

Background:

  • Musculoskeletal diseases cause significant global disability.
  • Inflammatory conditions can lead to joint destruction if untreated.
  • An aging population is increasing the prevalence of these conditions.

Purpose of the Study:

  • To review recent advances in musculoskeletal disease therapy.
  • To highlight the potential of new tissue engineering and surgical techniques.
  • To discuss the need for evolving care models for musculoskeletal conditions.

Main Methods:

  • Review of therapeutic advances in musculoskeletal diseases.
  • Exploration of regenerative medicine approaches (stem cells, nanotechnology).
  • Analysis of surgical innovations (minimally invasive, robotic, arthroscopic).

Main Results:

  • Therapeutic advances show potential to eradicate inflammation and prevent joint destruction.
  • Regenerative medicine using nanotechnology and stem cells offers revolutionary treatment possibilities.
  • Surgical advancements include minimally invasive, computer-assisted, and arthroscopic techniques.

Conclusions:

  • New therapies and surgical techniques hold promise for managing musculoskeletal diseases.
  • Developing novel musculoskeletal tissues is a key area for future treatment.
  • Evolving care delivery models are essential to meet the needs of an aging population.