Skin Flap Model
Skin Flap Model - Related Videos
07:57
An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
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2025
This protocol describes the surgical technique for harvesting a human perforator flap model based on the deep inferior epigastric artery pedicle, intended for experimental research.
10:10
A Model of Free Tissue Transfer: The Rat Epigastric Free Flap
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Cited by 23 •
2017
This paper describes the steps required to raise a fasciocutaneous epigastric free flap and transfer it to the neck in the rat.
08:18
Engineered Vascularized Muscle Flap
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Cited by 6 •
2016
To date, thick tissue defects are typically reconstructed by applying autologous tissue flaps or engineered tissues. In this protocol, we present a new method for engineering vascularized tissue flap bearing an autologous pedicle, to serve as a substitute to autologous flaps.
08:35
Demonstration of the Rat Ischemic Skin Wound Model
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Cited by 32 •
2015
The rat, due to its size, availability, and rather docile behavior, has been utilized as a research model for many years. The goal of this protocol is to utilize the rat as an ischemic skin wound healing model to provide valuable insight into the pathophysiology of chronic wounds.
11:12
In situ Transverse Rectus Abdominis Myocutaneous Flap: A Rat Model of Myocutaneous Ischemia Reperfusion Injury
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Cited by 10 •
2013
Free tissue transfer is widely employed in reconstructive surgery to restore form and function following oncological resection and trauma. Preconditioning this tissue prior to surgery may improve outcome. This article describes an in situ transverse rectus abdominis myocutaneous flap (TRAM) in rats as a means for testing preconditioning strategies.
FAQs
The retained vascular connection supplies part of the transferred tissue while the flap experiences reduced perfusion. This creates a controlled challenge rather than complete vascular interruption, allowing survival to be compared with tissue that develops ischemic injury. The connection therefore helps researchers relate blood-flow limitation to tissue viability, reperfusion, vascular adaptation, and eventual necrosis.
Ischemia limits oxygen and nutrient delivery, while reperfusion restores circulation after the period of restriction. Examining both phases shows how tissue responds to reduced blood flow and subsequent reoxygenation. This combined perspective is important because flap survival depends not only on the initial ischemic stress but also on repair processes activated when circulation returns.
The model can expose relationships among microcirculation, inflammation, angiogenesis, wound healing, and tissue survival. Angiogenesis, meaning the growth of new blood vessels, may support recovery when existing perfusion is inadequate. Measuring these linked responses helps clarify why some tissue repairs successfully while other regions lose viability under comparable vascular stress.
Viability depends on how effectively the remaining circulation supports the tissue during limited perfusion and how strongly repair responses restore or improve microcirculation. Reperfusion, inflammation, new-vessel growth, and the extent of ischemic injury all contribute to the outcome. Evaluating these variables together provides a more informative assessment than observing necrosis alone.
A study establishes a flap with a defined vascular connection, applies the intended limitation to perfusion, and then monitors tissue survival during ischemic and reperfusion-related responses. Researchers assess flap viability and repair, while examining vascular growth and inflammation when relevant. This workflow produces controlled observations for comparing treatments, biomaterials, or surgical strategies.
Researchers compare the condition of the flap and its repair response after the controlled vascular challenge. Viability indicates how much tissue remains successfully supported, whereas repair-related measurements can reflect microcirculation, inflammation, or angiogenesis. These outcomes allow treatments intended to improve blood flow or tissue survival to be evaluated against the model’s reproducible injury conditions.
This approach is useful when a material or drug is expected to influence microcirculation, angiogenesis, inflammation, or tissue repair. By placing the intervention within a controlled setting of limited perfusion, researchers can determine whether it improves flap viability or recovery. The findings support evaluation of regenerative strategies and candidates for reconstructive applications.
It links vascular biology and tissue engineering to a clinically relevant problem: maintaining transferred tissue after its blood supply has been altered. Results on viability, repair, and vascular adaptation can inform the assessment of surgical strategies designed to improve tissue survival. The model therefore provides a controlled biological context for studying mechanisms relevant to reconstructive procedures.