Surgical and Radiologic Anatomy

, Volume 29, Issue 5, pp 383–388

Topographic distribution area of the infraorbital nerve

Authors

  • Kyung-Seok Hu
    • Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, Human Identification Research Center, Brain Korea 21 Project, College of DentistryYonsei University
  • Jinny Kwak
    • College of DentistryYonsei University
  • Ki-Seok Koh
    • Department of Anatomy, College of MedicineKonkuk University
  • Shinichi Abe
    • Department of AnatomyTokyo Dental College
  • Christian Fontaine
    • Laboratoire d’Anatomie, Faculté de MedecineHenri Warembourg, Université Lille 2
    • Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, Human Identification Research Center, Brain Korea 21 Project, College of DentistryYonsei University
Original Article

DOI: 10.1007/s00276-007-0227-z

Cite this article as:
Hu, K., Kwak, J., Koh, K. et al. Surg Radiol Anat (2007) 29: 383. doi:10.1007/s00276-007-0227-z

Abstract

The infraorbital nerve (ION) supplies the skin and mucous membranes of the middle portion of the face. This nerve is vulnerable to injury during surgical procedures of mid-face. Severe pain and loss of sense are noted in patients whose infraorbital nerve is either entirely or partially lost after these surgeries. We investigated the distribution area and topography of the ION, about which little is currently known, by dissecting 43 hemifaces of Korean cadavers. The ION produced four main branches, the inferior palpebral, internal nasal, external nasal, and superior labial branches. The inferior palpebral branch was generally bifurcated, giving off a medial and a lateral branch (58.1%). The internal nasal branch ran superior to the depressor septi muscle, along the ala of the nose. It supplied the skin of the philtrum and gave off a terminal branch that supplied the nasal septum and the vestibule of the nose. The external nasal branch was distributed diversely supplying areas between the root and the ala of the nose. The superior labial branch was the largest branch of the ION produced the most subbranches. These subbranches were divided into the medial and lateral branches depending upon the area that they supplied.

Keywords

Infraorbital nerveDistribution areaBranching patternAnatomy

Copyright information

© Springer-Verlag 2007