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  • Title: Musculoseptocutaneous Perforator of Anterolateral Thigh Flap: A Clinical Study.
    Author: Hsieh F, Leow OQY, Cheong CF, Hung SY, Tsao CK.
    Journal: Plast Reconstr Surg; 2021 Jan 01; 147(1):103e-110e. PubMed ID: 33370066.
    Abstract:
    BACKGROUND: The anterolateral thigh flap is one of the most useful workhorse flaps for microsurgical reconstruction. However, it can pose a great challenge to surgeons because of its anatomical variability. As the technology advances, not only septocutaneous or musculocutaneous courses of anterolateral thigh perforators but also a hybrid musculoseptocutaneous perforator pattern have been identified on computerized imaging and on cadaveric study. However, there is a paucity of clinical study in the literature. The aim of this investigation was to identify the features of this pattern. METHODS: All patients undergoing anterolateral thigh flap harvest between September of 2017 and May of 2018 performed by a single surgeon are included. Every pulsatile perforator was dissected to document its location on the thigh, emerging location (septum/muscle), size, course, and origin. RESULTS: Thirty-seven patients with 115 perforators were identified. Ten percent of perforators were septocutaneous, 37 percent were musculoseptocutaneous, and 52 percent were musculocutaneous. Forty-seven percent of perforators emerged on the septum between the rectus femoris and the vastus lateralis. Eighty-one percent of patients had one or more perforators in the "hot zone." Medium and large perforators were more frequently located in the proximal and hot zones. All perforators originated from the vascular tree of the lateral circumflex femoral artery, with 10 percent originating from the transverse branch, 28 percent originating from the oblique branch, and 62 percent originating from the descending branch. CONCLUSIONS: A high proportion of musculoseptocutaneous perforators were identified. The clinical relevance of this is to be very cautious on the skin paddle design while harvesting the flap.
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