Distally Based Vastus Lateralis Muscle Flap for Coverage of Wounds About the Knee

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Abstract
The blood supply to the vastus lateralis muscle has been evaluated by dye injection techniques in fresh cadaver dissections. The main dominant blood supply is the descending branch of the lateral femoral circumflex artery. Vascular contributions from distal perforators of the superficial femoral artery, the superior geniculate artery, fill the main vascular pedicle in a retrograde fashion. Latex staining is observed consistently in the proximal third of the muscle. Five patients are presented in whom the distally based vastus lateralis muscle flap was successfully used to cover defects above the knee. Superficial muscle necrosis is a complication of this operation but has not precluded its usefulness. It is anticipated that this flap will be useful in the armamentarium of reconstructive surgeons treating such problematic patients.

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