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Related Concept Videos

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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Bone Disorders01:29

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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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Types of Non-structural Cracks in Concrete01:28

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Non-structural cracks are primarily of three types: plastic, early-age thermal, and drying shrinkage cracks. Plastic cracks are further classified into plastic shrinkage cracks and plastic settlement cracks.
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Stress-Strain Diagram - Brittle Materials01:24

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Brittle materials, including glass, cast iron, and stone, exhibit unique characteristics. They fracture without considerable change in their elongation rate, indicating that their breaking and ultimate strength are equivalent. Such materials also show lower strain levels at the point of rupture. The failure in brittle materials predominantly results from normal stresses, as evidenced by the rupture created along a surface perpendicular to the applied load. These materials do not display...
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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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Microcracking in Concrete01:20

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Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
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Imaging of the Microstructural Failure Mechanism in the Human Hip
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Spontaneous Insufficiency Fractures.

M Brennan1, P M O'Shea, S T O'Keeffe

  • 1M. Brennan, Department of Geriatric Medicine, University Hospital Galway, Galway, Ireland, mich.brennan90@gmail.com.

The Journal of Nutrition, Health & Aging
|September 28, 2019
PubMed
Summary
This summary is machine-generated.

Spontaneous insufficiency fractures result from weakened bone under normal stress, often linked to osteoporosis in older adults. Prevention involves adequate nutrition, mobility, and managing underlying conditions.

Keywords:
Spontaneous insufficiency fracturesolder peopleosteoporosis

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Area of Science:

  • Orthopedics
  • Geriatrics
  • Bone Metabolism

Background:

  • Spontaneous insufficiency fractures arise from physiological stress on weakened bone.
  • Osteoporosis is the primary cause, predominantly affecting older individuals.
  • Other contributing factors include metabolic bone disorders, collagen defects, and medications like glucocorticoids.

Purpose of the Study:

  • To summarize the causes, risk factors, and preventative measures for spontaneous insufficiency fractures.
  • To highlight the prevalence and characteristics of these fractures in specific populations.

Main Methods:

  • Literature review of causes and risk factors for insufficiency fractures.
  • Analysis of epidemiological data regarding fracture incidence in nursing home residents.
  • Identification of preventative strategies based on current medical understanding.

Main Results:

  • These fractures occur in approximately 1% of nursing home residents annually.
  • Bed-bound patients with joint contractures are particularly susceptible.
  • Pathological fractures and abuse require careful differential diagnosis.

Conclusions:

  • Optimal nutrition (protein, calcium, vitamin D) is crucial for prevention.
  • Maintaining mobility and avoiding prolonged bed rest are key preventative measures.
  • Addressing underlying conditions that predispose to bone weakening is essential.