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Related Concept Videos

Fractures: Bone Repair01:27

Fractures: Bone Repair

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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 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.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
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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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The Bone Matrix01:18

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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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Microcracking in Concrete01:20

Microcracking in Concrete

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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...
117

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Related Experiment Video

Updated: Jun 28, 2025

Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
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It is not "just a fracture".

Peggy M Cawthon1,2, Matthew Drake3,4

  • 1Research Institute, California Pacific Medical Center, San Francisco, CA, United States 94143.

JBMR Plus
|April 10, 2024
PubMed
Summary

Fractures, especially hip or vertebral fractures, significantly decrease survival rates, particularly in older men. Mortality risk peaks within one month post-fracture, highlighting a critical window for interventions.

Keywords:
epidemiologyfracturemortalityosteoporosissurvival

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Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents
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Area of Science:

  • Gerontology and Geriatric Medicine
  • Orthopedic Surgery
  • Epidemiology

Background:

  • A population-based study analyzed survival rates in nearly 100,000 patients following a fracture.
  • Previous research has indicated increased mortality after fractures, but specific risk stratification and timing remain areas for investigation.

Discussion:

  • Overall survival is notably reduced after hip or vertebral fractures compared to other fracture types.
  • Survival rates are significantly worse for men and the oldest individuals in the study cohort.
  • Post-hip fracture survival is poorer than for patients with common cancers like prostate or breast cancer.

Key Insights:

  • Mortality risk escalates immediately after fracture, with the highest risk observed within the first month.
  • Relative survival after hip fracture is starkly low: less than one-third of men and half of women survive five years.
  • The findings underscore a critical, time-sensitive window post-fracture for implementing survival-enhancing interventions.

Outlook:

  • Urgent research is required to identify effective interventions for the immediate post-fracture period.
  • Optimizing survival strategies during this critical window could significantly benefit fracture patients.
  • Further studies should focus on the specific mechanisms driving increased mortality post-fracture.