The effect of sternocleidomastoid flap combined with amorphous decellularized dermal matrix on the prevention of Frey syndrome after partial parotidectomy

Objective:To explore the clinical effects of sternocleidomastoid flap combined with amorphous decellularized dermal matrix(ADM) medical organization patch in the prevention of Frey syndrome after partial parotidectomy.Methods:One hundred and three patients with parotid benign tumor were randomly divided into the experiment group A and B(35 cases each group) and group C(33 cases).Group A and B were treated with sternocleidomastoid flap and sternocleidomastoid flap combined with ADM,respectively.The wounds in group C were directly closed without any repair.All patients were followed up for 6 to 42 months.The positive cases of iodine-starch test and subjective evaluation in 3 groups were observed in 6 months after operation.Results:The positive rates of iodine-starch test and subjective evaluation in group A and C were higher than those in group B(P<0.01),the positive rates of iodine-starch test and subjective evaluation in group C were higher than those in group A(P<0.01).Conclusions:The effect of sternocleidomastoid flap in the prevention of Frey syndrome after parotidectomy is good,but the preventive effect of sternocleidomastoid flap combined with ADM is better.