China Journal of Oral and Maxillofacial Surgery ›› 2024, Vol. 22 ›› Issue (3): 268-273.doi: 10.19438/j.cjoms.2024.03.011

• Original Articles • Previous Articles     Next Articles

Application of microvascular coupler in anterolateral thigh flap for repairing postoperative defects after oral malignant tumor surgery

MENG Yu-xiang1,2, SONG Kai1,2, HE Zong-xuan1,2, WANG Lin1,2, GE Sheng-you1,2, WEI Chen-ke1,2, SHANG Wei1,2   

  1. 1. Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Qingdao University. Qingdao 266003;
    2. School of Stomatology, Qingdao University. Qingdao 266003, Shandong Province, China
  • Received:2023-10-26 Revised:2023-01-04 Online:2024-05-20 Published:2024-06-11

Abstract: PURPOSE: By comparing the difference of vascular anastomosis methods in repairing oral defects after malignant tumors with anterolateral thigh flap, to analyze the effect of microvascular stapler and manual anastomosis on pulmonary infection, and to evaluate the risk factors related to pulmonary infection. METHODS: A retrospective analysis was conducted on 92 patients (42 in the stapler group and 50 in the manual anastomosis group) who underwent mandibular reconstruction with anterolateral thigh flaps in the Department of Oral and Maxillofacial Surgery of Qingdao University Affiliated Hospital from January 2019 to October 2022. A follow-up visit was conducted 12 months after surgery to assess the risk factors for postoperative pulmonary infection. SPSS 22.0 software package was used for data analysis. RESULTS: In microvascular coupler group, single-vein anastomoses were performed in 28 patients, double-vein anastomoses in 11 patients and both arterie and vein anastomoses in 3 patients. Anastomoses were completed successfully using the coupler in 54 out of 56 attempted cases (96.43%), 2 microvascular couplers were abandoned because 1 had arterial spasm and 1 had anastomotic stricture leading to coupler loose during the operation. As expected, no flap failures occurred in these cases, resulting in an overall flap success rate of 100%. Compared with the manual anastomosis group, there was no significant difference in postoperative pulmonary infection rate, but there was a significant decrease trend. In addition, in the stapler group, diabetes and postoperative albumin < 30 g/L were not risk factors for pulmonary infection, but were significantly associated with smoking, age, and ACE-27 score. The use of staplers helped reduce the average length of stay from 11.1 days to 8.9 days. CONCLUSIONS: Reasonable use of vascular coupler has a high flap survival rate and a positive effect on reducing postoperative pulmonary infection and the average length of hospital stay, but more large randomized clinical trials are still needed for further research.

Key words: Mandibular defect reconstruction, Microvascular coupler, Free flap, Pulmonary infection

CLC Number: