Abstract:

Objective　To studythe recoverymethod of facial nerve function and to compare the clinical effect after operation of parotid carcinoma, which invades stylomastoid foramen and peripheral bone in deep lobe.Methods　Three operation methods were taken:①The tumor, parotid, invasive facial nerve and bone around the tumor were resected with transplatation of facial nerve.②Tumor parotid and facial nerve were resected without transplatation of facial nerve.③Tumor and parotid were dislocated from facial nerve,keeping the continuity of facial nerve.Results　For the first method, facial nerve function of 68·2% patients came back to the patientswithout facial paralysis before operation, while facial nerve function of 16·7% patients came back to the patients with facial paralysis before operation. There was obvious difference between them(P<0·05).To the patients with facial paralysis before operation,the first and the second method were taken.The ratio of local control was 33·3% and 10·0% respec- tively.And survival for 5 years were 25·0% and 10·0% respectively. There was no obvious difference between the two methods (P>0·05). To the patients without facial paralysis before operation, three methods of operation were taken.The ratio of local control was 77·3%, 48·0% and 33·3% respectively. And survival for 5 years were 86·4%, 52·0% and 41·7% respectively. There was obvious difference between the firstmethod and the othertwo (P<0·05). There was no obvious difference between the second and the third methods (P>0·05).Conclusion　Facial canal dissection in operation of parotid carcinomawith recovery of facial nerve can not only resect tumor completely, but also fit for development of functional surgery. It is an ideal method for surgery operation.

Key words: facial nerve, recovery, parotid carcinoma, operation