A Novel, Simple, and Reliable Technique to Monitor Free Gracilis Flap

Free flap transfer is extensively used to reconstruct complex tissue defects in various situations. The patency of the microvascular anastomosis is critical for the survival of free flaps. Early detection of vascular compromise and timely intervention is key to salvaging failing free flaps. Various monitoring techniques have been described, ranging from clinical examination to advanced technologies.[1] [2] The clinical examination is generally acknowledged as the gold standard; however, it has limitations, including the possibility of poor interobserver agreement because of inconsistent flap appearances, especially in muscle flaps.[3] [4]