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Related Concept Videos

Bone Remodeling01:40

Bone Remodeling

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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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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.
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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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Compact Bone01:27

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Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
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Spongy Bone01:09

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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).
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Bone Markings01:26

Bone Markings

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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.
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Related Experiment Video

Updated: Mar 23, 2026

Improved Methodology for Studying Postnatal Osteogenesis via Intramembranous Ossification in a Murine Bone Marrow Injury Model
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Improved Methodology for Studying Postnatal Osteogenesis via Intramembranous Ossification in a Murine Bone Marrow Injury Model

Published on: February 7, 2025

793

Observations on eburnated bone.

H U Cameron, I Macnab

    Clinical Orthopaedics and Related Research
    |November 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Osteoarthritis causes bone loss on joint surfaces. Scanning Electron Microscopy revealed that both corrosive and abrasive wear contribute to eburnation, a condition seen in osteoarthritic bone.

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    Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
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    Area of Science:

    • Orthopedics
    • Biomaterials Science
    • Pathology

    Background:

    • Osteoarthritis (OA) is a degenerative joint disease characterized by cartilage breakdown and subchondral bone changes.
    • Eburnation, a dense, polished bone surface, is a hallmark of advanced OA, but its formation mechanism remains debated.

    Purpose of the Study:

    • To investigate the microstructural causes of bone loss and eburnation in osteoarthritic joints.
    • To elucidate the roles of abrasive and corrosive wear in the development of eburnated bone.

    Main Methods:

    • Scanning Electron Microscopy (SEM) was employed to examine the surface topography of eburnated bone.
    • Artificial abrasion and chemical treatments (leaching ground substance) were used to simulate and analyze wear processes.

    Main Results:

    • SEM revealed visible lamellar structures surrounding Haversian canals in eburnated bone.
    • Artificial abrasion resulted in a flat, featureless surface.
    • Treatment to leach ground substance allowed lamellar visibility, similar to untreated eburnated bone.

    Conclusions:

    • Eburnation results from a combination of abrasive and corrosive wear mechanisms acting on subchondral bone.
    • Understanding these wear processes is crucial for developing targeted OA treatments and improving joint preservation strategies.