Objective:To evaluate the application effect of vascularized iliac crest-tensor fascia lata flap(VIC-TFLF) based on deep circumflex iliac artery and vein in mandibular and oral soft tissue defect reconstruction.Methods:Retrospective analysis of the clinical data of patients with mandible and oral soft tissue defects in Henan Provincial People’s Hospital from October 2020 to March 2022. All cases were performed with computer-aided design and three-dimensional printing to make the models and guide plates. VIC-TFLF was used to repair and reconstruct the oral and mandible defects, the tensor fascia lata flap was used to repair the intraoral soft tissue defect, and the fascia lata was exposed to the mouth directly. After operation, the color, texture and change of intraoral flap were observed, and the recovery and complications were followed up.Results:In this study, 7 patients were included, 4 males and 3 females, aged 27-64 years old, with an average of 50.1 years old. There were 5 cases of squamous cell carcinoma of mandible gingival and cheek, 1 case of postoperative defect of pleomorphic adenocarcinoma of mandible, and 1 case of postoperative defect of ameloblastoma of mandible. According to the defect range of soft and hard tissue after resection, the flap areas of tensor fascia lata were 6.0 cm×3.0 cm-8.0 cm×6.0 cm, and the iliac bones were 3.7 cm×2.4 cm-9.2 cm×2.5 cm. All the composite tissue flaps survived, without distal necrosis, delayed wound healing and marginal fistula. The patients were followed up for 4-19 months, with an average of 11.7 months. The morphology and functions of the mandible and oral soft tissue were well recovered. The surface of tensor fascia lata was exposed to the oral cavity directly, which showed signs of mucosalization within 1 week after operation. The mucosalization was basically completed within 1 month, which was close to normal oral mucosal appearance, and could be reconstructed to produce better oral mucosal appearance in the later period. The wounds in the donor site healed well, and there was no abnormality in lower limb movement and thigh flexion. Among them, 3 patients had numbness on the lateral thigh skin of the donor site 3-5 days after operation. After 6 months of follow-up, the numbness in 2 cases disappeared, and 1 case was significantly reduced.Conclusions:The VIC-TFLF could obtain great appearance and function, with fewer complications and relatively small damage to the donor site, in repair and reconstruction of mandibular defects combined with oral soft tissue defects.

Objective:To evaluate the application effect of vascularized iliac crest-tensor fascia lata flap(VIC-TFLF) based on deep circumflex iliac artery and vein in mandibular and oral soft tissue defect reconstruction.Methods:Retrospective analysis of the clinical data of patients with mandible and oral soft tissue defects in Henan Provincial People’s Hospital from October 2020 to March 2022. All cases were performed with computer-aided design and three-dimensional printing to make the models and guide plates. VIC-TFLF was used to repair and reconstruct the oral and mandible defects, the tensor fascia lata flap was used to repair the intraoral soft tissue defect, and the fascia lata was exposed to the mouth directly. After operation, the color, texture and change of intraoral flap were observed, and the recovery and complications were followed up.Results:In this study, 7 patients were included, 4 males and 3 females, aged 27-64 years old, with an average of 50.1 years old. There were 5 cases of squamous cell carcinoma of mandible gingival and cheek, 1 case of postoperative defect of pleomorphic adenocarcinoma of mandible, and 1 case of postoperative defect of ameloblastoma of mandible. According to the defect range of soft and hard tissue after resection, the flap areas of tensor fascia lata were 6.0 cm×3.0 cm-8.0 cm×6.0 cm, and the iliac bones were 3.7 cm×2.4 cm-9.2 cm×2.5 cm. All the composite tissue flaps survived, without distal necrosis, delayed wound healing and marginal fistula. The patients were followed up for 4-19 months, with an average of 11.7 months. The morphology and functions of the mandible and oral soft tissue were well recovered. The surface of tensor fascia lata was exposed to the oral cavity directly, which showed signs of mucosalization within 1 week after operation. The mucosalization was basically completed within 1 month, which was close to normal oral mucosal appearance, and could be reconstructed to produce better oral mucosal appearance in the later period. The wounds in the donor site healed well, and there was no abnormality in lower limb movement and thigh flexion. Among them, 3 patients had numbness on the lateral thigh skin of the donor site 3-5 days after operation. After 6 months of follow-up, the numbness in 2 cases disappeared, and 1 case was significantly reduced.Conclusions:The VIC-TFLF could obtain great appearance and function, with fewer complications and relatively small damage to the donor site, in repair and reconstruction of mandibular defects combined with oral soft tissue defects.