Yan Sun1, Limei Liu2, Yuechen Han3, Lei Xu3, Daogong Zhang3, Haibo Wang3. 1. Department of Otorhinolaryngology Head and Neck Surgery, Provincial Hospital Affiliated to Shandong University Jinan 250022, China ; Department of Otorhinolaryngology Head and Neck Surgery, Yuhuangding Hospital of Qingdao University Yantai 264000, China. 2. Department of Ophthalmology, Yuhuangding Hospital of Qingdao University Yantai 264000, China. 3. Department of Otorhinolaryngology Head and Neck Surgery, Provincial Hospital Affiliated to Shandong University Jinan 250022, China.
Abstract
BACKGROUND: Facial nerve is easy to be damaged, and there are many reconstructive methods for facial nerve reconstructive, such as facial nerve end to end anastomosis, the great auricular nerve graft, the sural nerve graft, or hypoglossal-facial nerve anastomosis. However, there is still little study about great auricular-facial nerve neurorrhaphy. The aim of the present study was to identify the role of great auricular-facial nerve neurorrhaphy and the mechanism. METHODS: Rat models of facial nerve cut (FC), facial nerve end to end anastomosis (FF), facial-great auricular neurorrhaphy (FG), and control (Ctrl) were established. Apex nasi amesiality observation, electrophysiology and immunofluorescence assays were employed to investigate the function and mechanism. RESULTS: In apex nasi amesiality observation, it was found apex nasi amesiality of FG group was partly recovered. Additionally, electrophysiology and immunofluorescence assays revealed that facial-great auricular neurorrhaphy could transfer nerve impulse and express AChR which was better than facial nerve cut and worse than facial nerve end to end anastomosis. CONCLUSIONS: The present study indicated that great auricular-facial nerve neurorrhaphy is a substantial solution for facial lesion repair, as it is efficiently preventing facial muscles atrophy by generating neurotransmitter like ACh.
BACKGROUND: Facial nerve is easy to be damaged, and there are many reconstructive methods for facial nerve reconstructive, such as facial nerve end to end anastomosis, the great auricular nerve graft, the sural nerve graft, or hypoglossal-facial nerve anastomosis. However, there is still little study about great auricular-facial nerve neurorrhaphy. The aim of the present study was to identify the role of great auricular-facial nerve neurorrhaphy and the mechanism. METHODS:Rat models of facial nerve cut (FC), facial nerve end to end anastomosis (FF), facial-great auricular neurorrhaphy (FG), and control (Ctrl) were established. Apex nasi amesiality observation, electrophysiology and immunofluorescence assays were employed to investigate the function and mechanism. RESULTS: In apex nasi amesiality observation, it was found apex nasi amesiality of FG group was partly recovered. Additionally, electrophysiology and immunofluorescence assays revealed that facial-great auricular neurorrhaphy could transfer nerve impulse and express AChR which was better than facial nerve cut and worse than facial nerve end to end anastomosis. CONCLUSIONS: The present study indicated that great auricular-facial nerve neurorrhaphy is a substantial solution for facial lesion repair, as it is efficiently preventing facial muscles atrophy by generating neurotransmitter like ACh.
Entities:
Keywords:
AChR; Facial nerve; great auricular nerve; nerve neurorrhaphy
Authors: Jianjun Ma; Beth P Smith; Thomas L Smith; Francis O Walker; Eileen V Rosencrance; L Andrew Koman Journal: Muscle Nerve Date: 2002-12 Impact factor: 3.217