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Related Concept Videos

Bone Structure01:55

Bone Structure

51.7K
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
51.7K
Bone Remodeling01:40

Bone Remodeling

40.4K
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.
40.4K
Compact Bone01:27

Compact Bone

16.5K
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...
16.5K
Bone Disorders01:29

Bone Disorders

5.4K
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...
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The Hyoid Bone01:12

The Hyoid Bone

5.0K
The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
5.0K
Spongy Bone01:09

Spongy Bone

7.9K
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...
7.9K

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Related Experiment Video

Updated: Feb 2, 2026

Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology
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Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology

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Image-Guided Bone Consolidation in Oncology.

Xavier Buy1, Vittorio Catena1, Guilhem Roubaud2

  • 1Department of Radiology, Institut Bergonie, Bordeaux, France.

Seminars in Interventional Radiology
|November 8, 2018
PubMed
Summary

Interventional radiology techniques like cementoplasty reinforce weakened bones, managing pain and fractures from bone metastases. While effective for flat bones, long bone application requires caution due to limited torsion resistance.

Keywords:
bone metastasiscementoplastyinterventional radiologyscrew fixationvertebroplasty

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Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
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Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

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Area of Science:

  • Oncology
  • Interventional Radiology
  • Orthopedics

Background:

  • Bone metastases are common in cancer patients, causing pain, fractures, and functional decline.
  • Weight-bearing bones are particularly susceptible to complications from metastases.
  • Traditional management often involves systemic therapies, with limited options for local skeletal reinforcement.

Purpose of the Study:

  • To review current interventional radiology techniques for bone consolidation in oncology.
  • To evaluate the efficacy and limitations of cementoplasty and emerging percutaneous methods.
  • To highlight the role of image guidance and multidisciplinary approaches in managing bone metastases.

Main Methods:

  • Review of cementoplasty technique, including cement injection for bone reinforcement and pain control.
  • Discussion of alternative percutaneous techniques: vertebral augmentation devices and screw fixation.
  • Exploration of research into drug-eluting bone cements.

Main Results:

  • Cementoplasty is effective for flat bones under compression but has limited resistance to torsion, necessitating caution in long bone treatment.
  • Percutaneous techniques offer expanded options for vertebral, pelvic, and proximal femur lesions.
  • Drug-eluting cements show promise but face challenges in controlled drug release; polymethylmethacrylate remains standard.

Conclusions:

  • Image-guided bone consolidation techniques significantly enhance treatment options in bone oncology.
  • A multidisciplinary approach is crucial for optimal patient selection and treatment planning.
  • Further research is needed to refine drug delivery systems for bone cements.