Purpose: To study the feasibility and clinical effect of repairing important branches of facial nerve (zygomatic and marginal mandibular branches) with unimportant ones (upper buccal and cervical branches).
Methods: The defect of zygomatic and marginal mandibular branches was repaired with upper buccal and cervical branches, respectively. After the length of facial nerve defect was measured, the distal part of the upper buccal and cervical branches with peripheral tissue was used to repair the defect. Under operating microscope, nerve anastomosis was performed with 9-0 suture. 5 cases suffering from defect of marginal mandibular branches were repaired with cervical branches, and 7 cases with defect of zygomatic branches were repaired with upper buccal branches.
Results: In 5 cases suffering from defect of marginal mandibular branches, 2 cases recovered in 3 months, and 3 cases recovered in 6 months; In 7 cases suffering from defect of zygomatic branches, all recovered in 3-4 months.
Conclusion: Repair of defect of zygomatic and marginal mandibular branches with upper buccal and cervical branches is feasible and the result is acceptable.
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