[Microsurgery of the facial nerve (author's transl)].

The extent and importance of facial paralysis is established by means of the diagnosis of the etiologic factors, the level of the nerve lesions and the condition of the facial muscles. Treatment depends on the analysis of these different elements. A survey of the methods of treatment is given with special reference to the cross-face nerve grafting. The results of the varied methods are reviewed. The substitutional procedures are listed.