눈확아래신경과 얼굴신경의 교통: 해부조직학적 연구

초록

purpose: The maxillary nerve, second division of the trigeminal nerve, is entirely sensory. Mansion described that drooling may occur later in case of the fracture of the zygoma wherein hyposthesia prevails. The aim of the study is to elucidate further detailed anatomy of infraorbital plexus consisting of superior labial branch of the infraorbital nerve and facial nerve in the cheek. Methods: We dissected infraorbital nerve and facial nerve in 16 cadavers. Results: Most terminals of the zygomatic branch of the facial nerve emerged from under the levator labii superiors and zygomatic muscle and infraorbital nerve. A hazardous zone of infraorbital plexus is bounded in a circle of 36mm in diameter.Its center located at 22 mm below the inferior orbital foramen. Conclusion: A hazardous zone of infraorbital plexus should be kept in mind in case of any procedures onto the zygoma, maxilla or deep cheek injuries. Supported by a grant of the Korea Health 21 R&D project, Ministry of Heal-th and Welfare, Republic of Korea to Kun Hwang (02-PJ1-CH07-0001).