[Application effects of free transplantation of autologous omentum in treating maxillofacial infection complicated with complex sinus tract].

Objective: To investigate the application effects of free transplantation of autologous omentum in treating maxillofacial infection complicated with complex sinus tract. Methods: The retrospective observational study method was used. Four patients with maxillofacial infection complicated with complex sinus tract were admitted to Department of Burns and Plastic Surgery of the Second Affiliated Hospital of Air Force Medical University from July 2017 to the December 2019, including 3 males and 1 female aged 36-60 years. Preoperative facial computed tomography (CT) was performed on patients for calculating the volume of sinus tract. During the operation, the sinus tract was thoroughly debrided, and the volume of the tissue defect was about 5 cm×3 cm×2 cm-10 cm×5 cm×3 cm after debridement. The tissue defect area was filled with omentum of 100-300 mL which was cut under laparoscopy. The artery and vein on the right side of the omentum were reserved as the vascular pedicle of the donor area, which were anastomosed with the facial artery and external jugular vein of the recipient area. The survival of omentum, and the occurrences of reinfection and complication were observed after operation, respectively. On the 10th day and in 1 month after the operation, the blood supply of omentum was examined by colored Doppler ultrasound and CT angiography, and the filling of tissue defect area was examined by head and face CT. During follow-up after the operation, the recoveries of face appearance and function and scar hyperplasia in the donor area. Results: The transplanted omentums in 4 patients survived after the operation with no reinfection and complication. On the 10th day and in 1 month after the operation, the transplanted omentums had good blood supply, and the filled area with omentum was in good shape, without formation of dead cavity. During follow-up of 6-10 months after surgery, the appearance and function of face recovered well, and there was no obvious scar hyperplasia in the donor area. Conclusions: After free transplantation of omentum in treating maxillofacial infection with complex sinus tract, the patients have good facial appearance and function, and the application of laparoscopy results in little damage to the patients and quick postoperative recovery.目的： 探讨自体大网膜游离移植治疗颌面部感染合并复杂窦道的效果。 方法： 采用回顾性观察性研究方法。2017年7月—2019年12月空军军医大学第二附属医院整形烧伤科收治颌面部感染合并复杂窦道患者4例，其中男3例、女1例，年龄36~60岁。患者术前行面部CT检查，计算窦道体积；术中对窦道进行充分清创，清创后组织缺损体积为5 cm×3 cm×2 cm~10 cm×5 cm×3 cm。腹腔镜下切取100~300 mL大网膜填充组织缺损区域，保留大网膜右侧动静脉作为供区血管蒂，分别与受区面动脉及颈外静脉进行吻合。术后观察大网膜成活情况、受区再次感染和并发症发生情况。术后第10天、1个月，彩色多普勒超声及CT血管造影检查移植大网膜血运情况，头面部CT检查组织缺损区域填充情况。术后随访，观察面部外观和功能恢复情况及供区瘢痕增生情况。 结果： 4例患者移植大网膜术后均成活，无再次感染及并发症发生。术后第10天、1个月，移植大网膜血运良好，大网膜填充区域形态良好，未见无效腔形成。术后随访6~10个月，面部外观及功能恢复良好，供区无明显瘢痕增生。 结论： 大网膜游离移植治疗颌面部感染合并复杂窦道后，患者面部外观及功能良好，腹腔镜的应用对患者损伤小，术后恢复快。.