Abstract: ObjectiveTo evaluate the clinical value of microvascular anastomotic devices in free anterolateral thigh flap in the reconstruction of oral carcinoma defects.MethodsFrom September 2013 to September 2014

52 patients with oral cancer were treated by functional neck cleaning

primary tumors resection

and free anterolateral thigh flap in the reconstruction.Of which 27 patients received free of femoral anterolateral flap to repair veins by using microsurgical line end to end anastomosis.And 25 pieces of microvascular anastomotic advices were applied in 25 patients with oral carcinoma defects.The length of anastomosis time

flap survival rate

and complications were recorded.ResultsIn 52 patients

microvascular anastomotic devices were applied in 25 veins with shorter anastomosis time

（6.3±1.9)min vs（12.3±1.4)min

and the difference was significant(P=0.001).The flap survival rate and vascular anastomosis patency rate was 100%. o intra-and post-operative complications such as blood leak

stapling

excessive tension and tear

thrombosis in flap vein crisis associated with microvascular anastomotic devices were observed.Twenty-seven patients with 40 root vein received manual microsurgical anastomosis

2 of them showed vein crisis.ConclusionThe microvascular anastomotic devices used in repairing the soft tissue defects by anterolateral thigh flap with venous anastomosis for patients of oral cancer after surgery has the advantage of higher quality

shorter time and less complications.