Advancement Flaps for Skin Movement and Tension Relief
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Questions and Answers

Why does a high length-to-width ratio decrease the likelihood of flap survival?

  • The flap becomes too heavy for the recipient bed.
  • The skin tension decreases with a higher ratio.
  • Blood supply will not reach the distal end of the flap. (correct)
  • The vascular plexus becomes more robust.

    • What is the basic technique known as the single pedicle advancement flap used for?

  • To close large wounds with one flap. (correct)
  • To create a double pedicle flap.
  • To enhance blood circulation in the recipient bed.
  • To move skin to cover an adjacent defect.

    • Why are two single pedicle flaps considered safer than one large flap for closing larger wounds?

  • They prevent revascularization from the recipient bed.
  • They increase the risk of failure due to tension.
  • They reduce the blood supply to the recipient bed.
  • They provide better coverage over the defect. (correct)

    • In which flap technique does the coverage depend on stretching the skin over the defect?

    <p>V-Y advancement flap</p> Signup and view all the answers

    What is the purpose of axial pattern flaps in surgical procedures?

    <p>To provide a new blood supply to ensure flap survival</p> Signup and view all the answers

    Which artery is the best-described for axial pattern flaps?

    <p>Caudal superficial epigastric artery</p> Signup and view all the answers

    Why must axial pattern flaps have consistent landmarks?

    <p>To have a direct cutaneous arterial supply</p> Signup and view all the answers

    What is the purpose of using free skin grafts?

    <p>For cases with massive tissue loss like large burns or degloving injuries</p> Signup and view all the answers

    What factor is vital for the survival of all skin flaps and grafts?

    <p>Recipient bed free of debris, infection, and necrotic tissue</p> Signup and view all the answers

    What may cause skin edema in a flap immediately after inosculation?

    <p>Venous return before arterial supply</p> Signup and view all the answers

    Why should purple color not be used as a predictor of viability in flaps?

    <p>'Purple skin' can sometimes be viable</p> Signup and view all the answers

    What is the significance of assessing color, warmth, sensation, and bleeding in determining flap viability?

    <p>They are objective measures that accurately assess flap viability</p> Signup and view all the answers

    Why might contused, purple skin sometimes be viable?

    <p>'Purple' may not indicate tissue death</p> Signup and view all the answers

    What may not remain viable if laid over squamous epithelium, denuded bone, cartilage, or tendon?

    <p>Free skin grafts</p> Signup and view all the answers

    What methods are NOT accurate in assessing the viability of flaps?

    <p>Anastomosis with recipient bed vessels</p> Signup and view all the answers

    In which type of surgeries are free skin grafts typically used?

    <p>Cases involving massive tissue loss</p> Signup and view all the answers

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