China Journal of Oral and Maxillofacial Surgery ›› 2022, Vol. 20 ›› Issue (4): 396-400.doi: 10.19438/j.cjoms.2022.04.014

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Intra-operative vascular mapping with indocyanine green: a real time guide for perforator selection of anterolateral thigh flap

CHEN Yi-ming, Ahemd, JI Tong, REN Zhen-hu   

  1. Department of Oromaxillofacial Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China
  • Received:2022-05-08 Revised:2022-05-30 Online:2022-07-20 Published:2022-08-02

Abstract: PURPOSE: To evaluate the value of intra-operative application of indocyanine green of mapping and selecting perforators of anterolateral thigh flap. METHODS: A prospective study was adapted for head neck tumor patients who underwent anterolateral thigh flap reconstruction from 2020.9 to 2020.12 in Shanghai Ninth People's Hospital. Indocyanine green was injected, when lateral femoral circumflex artery and perforator were found, fluorescence detector was used to evaluate the signal time and strength of perforator and branches of lateral circumflex femoral artery, as well as mapped the tract. Surgical anatomy was conducted to confirm the previous results. SPSS 19.0 software package was used for data analysis. RESULTS: Thirty patients were collected, 16 were males and 14 were females, aging from 36 to 70 years old. There was no significant difference for perforators distribution within patients. As perforator classification, classⅠ: 60, classⅡ:15, and class Ⅲ :10. Each flap had 2 classⅠperforator on average. The accuracy for perforator tract based on indocyanine green was 97.6%. CONCLUSIONS: Intra-operative application of indocyanine green is useful in mapping and selecting perforators of anterolateral thigh flap, which also reduced the surgical time and risk.

Key words: Indocyanine green, Anterolateral thigh flap, Perforator, Vascular mapping

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