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Related Concept Videos

Flail Chest-I01:24

Flail Chest-I

Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Flail Chest-II01:26

Flail Chest-II

Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
Assessment:
1. Clinical Evaluation:
History:
Burn Injuries01:22

Burn Injuries

Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Fractures: Bone Repair01:27

Fractures: Bone Repair

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 procedure...
Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...

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Related Experiment Video

Updated: Jun 4, 2026

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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Published on: May 18, 2015

[Observations on injuries by blunt objects].

Koichi Terazawa1

  • 1Division of Forensic Medicine, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan.

Nihon Hoigaku Zasshi = the Japanese Journal of Legal Medicine
|March 1, 2011
PubMed
Summary

Forensic pathologists can differentiate ante-mortem from post-mortem blunt force injuries by analyzing abrasion characteristics and bruise patterns. Understanding these injury patterns aids in reconstructing events and improving medico-legal diagnostics.

Area of Science:

  • Forensic Pathology
  • Traumatology
  • Medico-legal Science

Context:

  • Distinguishing between ante-mortem and post-mortem blunt force injuries presents diagnostic challenges in forensic investigations.
  • Variations in abrasion color, size, and epidermal peeling, as well as bruise characteristics, require careful interpretation.
  • Post-mortem changes can mimic ante-mortem injuries, necessitating a thorough understanding of tissue alterations.

Purpose:

  • To provide a detailed analysis of key indicators for differentiating ante-mortem from post-mortem blunt force trauma.
  • To elucidate how specific injury patterns, such as abrasions and bruises, can reveal information about the causative agent and event.
  • To enhance the diagnostic capabilities of forensic pathologists, particularly in complex cases involving traffic accidents and immersed bodies.

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Pseudofracture: An Acute Peripheral Tissue Trauma Model
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Pseudofracture: An Acute Peripheral Tissue Trauma Model

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Low-intensity Blast Wave Model for Preclinical Assessment of Closed-head Mild Traumatic Brain Injury in Rodents

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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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Published on: May 18, 2015

Pseudofracture: An Acute Peripheral Tissue Trauma Model
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Pseudofracture: An Acute Peripheral Tissue Trauma Model

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Low-intensity Blast Wave Model for Preclinical Assessment of Closed-head Mild Traumatic Brain Injury in Rodents
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Summary:

  • Analysis of abrasions, including color, size, and epidermal peeling, helps determine if they occurred before or after death.
  • Bruise characteristics, tram-line bruises, and intradermal bleeding provide insights into the nature and force of blunt objects.
  • Specific injury patterns associated with animal mutilation, immersed bodies, and traffic accidents are detailed for accurate interpretation.

Impact:

  • Improved accuracy in determining the timing and mechanism of blunt force injuries in forensic autopsies.
  • Enhanced ability to reconstruct events leading to death, aiding criminal investigations.
  • Contributes to the training and skill development of forensic pathologists through case report analysis and collaborative learning.