Traumatic Tissue Defects
Traumatic Tissue Defects - Related Videos
10:15
A Novel Method to Model Chronic Traumatic Encephalopathy in Drosophila
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Cited by 19 •
2017
Here, we describe a new approach to inflict closed-head traumatic brain injury in Drosophila melanogaster. Our method has the advantage of directly delivering repetitive impacts with adjustable strength to the head alone. Further exploration of the invertebrate system will help to illuminate the pathogenesis of chronic traumatic encephalopathy.
01:47
Technique to Induce Post-Traumatic Seizures in a Mouse Model via a Weight Drop Traumatic Injury
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2025
Source: Shandra, O. et al., Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury. J. Vis. Exp.
02:14
Delivery of a Traumatic Brain Injury to a Mouse Brain
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2025
This video demonstrates the delivery of Traumatic Brain Injury (TBI) in mice. After exposing the skull, the TBI site is marked. The mouse is then positioned under the TBI device. The impact is delivered by lifting the metal rod and allowing it to drop freely onto the impactor, which is in contact with the skull.
07:56
A Full Skin Defect Model to Evaluate Vascularization of Biomaterials In Vivo
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Cited by 13 •
2014
Vascularization is key to approaches in successful tissue engineering. Therefore, reliable technologies are required to evaluate the development of vascular networks in tissue-constructs. Here we present a simple and cost-effective method to visualize and quantify vascularization in vivo.
01:23
Lumber Defects
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2024
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability. Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
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The injury pattern helps predict which structures are disrupted and how much tissue remains usable. Laceration may produce a cut, whereas crushing, shearing, or avulsion can create broader structural damage and compromise blood vessels. This distinction matters because the defect’s geometry, tissue viability, and functional consequences influence whether repair can rely on closure or requires reconstruction.
Perfusion determines whether injured tissue can support spontaneous repair and remain suitable for reconstruction. Damage to blood vessels can reduce the delivery needed for recovery, while poorly viable tissue may require removal before definitive repair. Assessing perfusion alongside defect depth helps clinicians distinguish tissue that can be preserved from tissue that may interfere with healing.
Complexity increases when tissue loss extends beyond skin and soft tissue into muscle, bone, or organs, or when the injury threatens function. Depth, contamination, and tissue viability add further management challenges. Evaluating these features together gives clinicians a structured basis for selecting debridement, infection control, closure, grafting, or flap reconstruction.
Initial evaluation characterizes the defect’s depth, the types of tissue involved, the viability of remaining tissue, the degree of contamination, and the effect on function. These findings establish the priorities for treatment rather than treating every wound identically. The assessment then guides tissue removal, infection control, and selection of a suitable method for restoring coverage or structure.
Management may begin with debridement, which removes tissue unsuitable for repair, together with infection control when contamination is present. Once the defect has been assessed and prepared, clinicians may use wound closure, grafting, or flap reconstruction. The chosen sequence depends on the defect’s depth, tissue viability, contamination, and functional requirements.
These defects provide a clinical context for improving surgical planning, developing biomaterials, and advancing regenerative medicine. Their variation in depth, tissue type, viability, and functional impact creates different reconstruction problems. Studying those problems can help connect injury assessment with strategies intended to restore lost tissue or structural function.