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Related Concept Videos

Mesh Analysis01:20

Mesh Analysis

Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...

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Minced Tissue in Compressed Collagen: A Cell-containing Biotransplant for Single-staged Reconstructive Repair
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Skin graft meshing, over-meshing and cross-meshing.

James Henderson1, Reza Arya, Patrick Gillespie

  • 1St Andrew's Centre for Plastic Surgery and Burns, Broomfield Hospital, Court Road, Chelmsford CM1 7TT, UK.

International Journal of Surgery (London, England)
|September 11, 2012
PubMed
Summary

Over-meshing split skin grafts (SSGs) allows for greater expansion than standard meshing. Re-meshing in the same direction maximizes skin area coverage, unlike cross-meshing which damages the graft.

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Area of Science:

  • Dermatology
  • Surgical Techniques
  • Wound Healing

Background:

  • Split skin grafts (SSGs) are frequently meshed to enhance surface area and facilitate exudate drainage.
  • Investigating the expansion efficiency of meshing and the potential of re-meshing (over-meshing) previously meshed skin.

Purpose of the Study:

  • To quantify the actual area expansion achieved with different meshing ratios.
  • To evaluate the feasibility and outcomes of over-meshing SSGs.
  • To identify optimal meshing strategies for maximizing graft area.

Main Methods:

  • Porcine SSGs were subjected to single meshing at ratios of 1.5:1 and 3:1.
  • Grafts were subsequently over-meshed using various ratios and directions.
  • Maximal expansion was performed, and graft areas were meticulously calculated.

Main Results:

  • Meshing resulted in less expansion than indicated by dermacarrier ratios (1.5:1 yielded 1.36x, 3:1 yielded 1.80x expansion).
  • Over-meshing maintained graft integrity when performed along the initial meshing axis, achieving up to 2.3x expansion.
  • Orthogonal re-meshing (cross-meshing) resulted in graft fragmentation.

Conclusions:

  • Over-meshing SSGs significantly increases graft area, offering benefits for covering large defects or augmenting donor sites.
  • Strategic sequential meshing, particularly along the same axis, is crucial for maximizing expansion without compromising graft integrity.