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Related Concept Videos

Bone Disorders01:29

Bone Disorders

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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.
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Skeleton and Calcium Homeostasis01:21

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Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
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Bone Structure01:55

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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.
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Role of Vitamins in Maintaining Bone Health01:25

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The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
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Introduction to the Skeletal System01:20

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The skeletal system is the central framework of the body, consisting of different connective tissues: bones, cartilage, tendons, and ligaments.
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Bone Remodeling01:40

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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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Bone Densitometry in Children.

Judith E Adams1

  • 1Department of Radiology, The Royal Infirmary, Manchester Academic Health Science Centre, Manchester, United Kingdom.

Seminars in Musculoskeletal Radiology
|October 15, 2016
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Summary
This summary is machine-generated.

Optimizing childhood bone health is crucial for lifelong skeletal wellness. This review examines bone assessment tools like Dual-energy X-ray absorptiometry (DXA) for pediatric bone status and fracture evaluation.

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Area of Science:

  • Pediatric skeletal health
  • Bone densitometry
  • Medical imaging techniques

Background:

  • Maximizing peak bone mass in childhood is vital for long-term bone health.
  • Understanding skeletal status in children, both healthy and diseased, is important.
  • Dual-energy X-ray absorptiometry (DXA) is the primary clinical method for assessing bone in children.

Purpose of the Study:

  • To review current and emerging techniques for assessing bone health in children.
  • To evaluate the clinical utility and limitations of various bone measurement technologies.
  • To highlight advancements in pediatric bone assessment, particularly DXA's role.

Main Methods:

  • Review of existing literature on pediatric bone assessment technologies.
  • Comparison of Dual-energy X-ray absorptiometry (DXA) with other imaging modalities.
  • Discussion of the technical aspects and clinical applicability of quantitative computed tomography (QCT) and high-resolution peripheral QCT (HR-pQCT).

Main Results:

  • DXA technology allows vertebral fracture assessment with reduced radiation compared to spinal radiographs.
  • Quantitative computed tomography (QCT) is a research tool with size-independent advantages over DXA.
  • High-resolution peripheral computed tomography (HR-pQCT) offers microstructural detail but is challenging for pediatric use.

Conclusions:

  • DXA is a practical clinical tool for pediatric bone assessment, with technological advancements improving its capabilities.
  • QCT and other quantitative techniques (MRI, dX, ultrasound) are primarily research tools with limited current clinical application in children.
  • Further research and technological development are needed to enhance pediatric bone health assessment.