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Related Experiment Videos

Venous drainage in the reverse forearm flap.

S D Lin, C S Lai, C C Chiu

    Plastic and Reconstructive Surgery
    |October 1, 1984
    PubMed
    Summary
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    Reverse forearm flaps show unique venous drainage patterns. Crossover and bypass patterns in venae comitantes, along with cephalic vein communication, explain reverse blood flow despite intact valves.

    Area of Science:

    • Vascular Surgery
    • Anatomy
    • Microsurgery

    Background:

    • Understanding venous drainage is crucial for flap viability.
    • Reverse forearm flaps present unique anatomical considerations for venous outflow.

    Purpose of the Study:

    • To elucidate the venous drainage patterns in reverse forearm flaps.
    • To identify anatomical factors contributing to venous return in these flaps.

    Main Methods:

    • Venograms were performed in three patients undergoing reverse forearm flap surgery.
    • Detailed analysis of communicating and collateral venous branches was conducted.

    Main Results:

    • Demonstrated a "crossover pattern" between venae comitantes communicating branches.

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  • Identified a "bypass pattern" in collateral branches of each vein.
  • Observed intact venous valves despite evidence of reverse blood flow.
  • Noted significant communication between the cephalic vein and the deep venous system.

    • Conclusions:

    • The crossover and bypass patterns explain reverse venous drainage in reverse forearm flaps.
    • The cephalic vein offers an alternative venous drainage pathway.
    • These findings enhance understanding of flap vascularity and improve surgical planning.