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Related Concept Videos

Bone Formation by Intramembranous Ossification01:29

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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.
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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...
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
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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...
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Sutures of the Skull01:22

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The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
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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.
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Related Experiment Video

Updated: Aug 20, 2025

Direct Mouse Trauma/Burn Model of Heterotopic Ossification
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Direct Mouse Trauma/Burn Model of Heterotopic Ossification

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Heterotopic Ossification after Trauma.

Jad Lawand1, Zachary Loeffelholz1, Bilal Khurshid2

  • 1Department of Orthopaedic Surgery, John Peter Smith Health Network, Fort Worth, Texas, USA.

The Orthopedic Clinics of North America
|November 19, 2022
PubMed
Summary
This summary is machine-generated.

Heterotopic ossification (HO) is abnormal bone growth in soft tissues after orthopedic trauma surgery. This review covers HO

Keywords:
Heterotopic ossificationHip arthroplastyMyositis ossificansNSAIDsOrthopedicsTrauma

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Area of Science:

  • Orthopedic Surgery
  • Bone Biology
  • Trauma Medicine

Background:

  • Heterotopic ossification (HO) involves benign ectopic bone formation in soft tissues.
  • Postoperative HO is a common complication following orthopedic trauma surgery.
  • Ectopic bone can lead to restricted movement and potential ankylosis, requiring further intervention.

Purpose of the Study:

  • To review the current literature on postoperative heterotopic ossification in orthopedic trauma.
  • To discuss the pathophysiology, prophylaxis, and treatment strategies for HO.
  • To examine the epidemiology of HO in the context of orthopedic trauma.

Main Methods:

  • Comprehensive literature search of existing studies on heterotopic ossification.
  • Synthesis of data regarding the mechanisms, prevention, and management of postoperative HO.
  • Analysis of epidemiological trends and risk factors associated with HO following orthopedic trauma.

Main Results:

  • HO pathophysiology involves complex cellular and molecular signaling pathways.
  • Prophylactic measures and early treatment can mitigate the impact of HO.
  • Understanding epidemiology aids in identifying high-risk patient populations.

Conclusions:

  • Heterotopic ossification is a significant challenge in orthopedic trauma care.
  • Multifaceted approaches are necessary for effective prophylaxis and treatment.
  • Further research is needed to optimize management strategies and improve patient outcomes.