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  • Title: [Experimental microsurgery of the facial nerve: end-to-end suture versus approximated ends wrapped with masseter muscle aponeurosis].
    Author: Urpegui AM, Abenia JM, Morandeira MJ, Alfonso JI, Domínguez LJ, Martínez J, Sancho E, Millán J, Vallés H.
    Journal: Acta Otorrinolaringol Esp; 1998 Mar; 49(2):107-10. PubMed ID: 9650306.
    Abstract:
    As an alternative to end-to-end facial nerve microsurgery, we propose anastomosis of the sectioned nerve ends and wrapping with ipsilateral masseter fascia. This intervention was performed on the right facial nerve of 20 Wistar rats and compared with classical end-to-end anatomosis performed on the left nerve of the same rats. At the end of the experiment, histological studies were made of each nerve removed "en bloc" with the ipsilateral lip orbicular muscle. Five micra-thick sections were stained using conventional and immunohistochemical methods. We analyzed truncal integrity, fibroblast proliferation, demyelination, lymphocyte proliferation, granulomatous reaction, and muscle degeneration in both types of anastomosis. The differences between the two types of anastomosis were statistically non-significant, and both interventions produced similar functional results. Small differences between the techniques might condition the use of one or the other in selected cases.
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