title: What Is the Lobular Branch of the Great Auricular Nerve? Anatomical Description and Significance in Rhytidectomy.
abstract: BACKGROUND
  Current literature suggests that preserving the lobular branch of the great auricular nerve has greater impact on sensory function of the auricle than preservation of the posterior branch during rhytidectomy. However, no methodology exists to efficiently and accurately determine the topographic location of the lobular branch. This study describes the branching characteristics of the lobular branch and algorithmic surface markings to assist surgeons in preservation of the great auricular nerve during rhytidectomy flap elevation.
  
  
  METHODS
  The lobular branch was dissected in 50 cadaveric necks. Measurements were taken from the lobular branch to conchal cartilage, tragus, and antitragus. The anterior branch was measured to its superficial musculoaponeurotic system insertion, and the posterior branch was measured to the mastoid process. The McKinney point was marked and the great auricular nerve diameter was recorded. Branching pattern and location of branches within the Ozturk 30-degree angle were documented. Basic statistics were performed.
  
  
  RESULTS
  The lobular branch was present in all specimens and distributed to three regions. In 85 percent of specimens, the lobular branch resided directly inferior to the antitragus; in the remaining specimens, it was located directly inferior to the tragus. Preoperative markings consisting of two vertical lines from the tragus and antitragus to the McKinney point can be used to outline the predicted location of the lobular branch.
  
  
  CONCLUSIONS
  This study delineates the location of the lobular branch of the great auricular nerve. The authors translate these findings into a quick and simple intraoperative marking, which can assist surgeons in avoiding lobular branch injury during rhytidectomy dissection.
authors.affiliation: Kansas City, Mo.; and Kansas City, Kan.|From the Division of Anatomy, Kansas City University of Medicine and Biosciences; and the Department of Plastic Surgery, University of Kansas Medical Center.
authors.forename: Vicki S
authors.initials: VS
authors.lastname: Sharma
authors.affiliation: Kansas City, Mo.; and Kansas City, Kan.|From the Division of Anatomy, Kansas City University of Medicine and Biosciences; and the Department of Plastic Surgery, University of Kansas Medical Center.
authors.forename: Robert E
authors.initials: RE
authors.lastname: Stephens
authors.affiliation: Kansas City, Mo.; and Kansas City, Kan.|From the Division of Anatomy, Kansas City University of Medicine and Biosciences; and the Department of Plastic Surgery, University of Kansas Medical Center.
authors.forename: Barth W
authors.initials: BW
authors.lastname: Wright
authors.affiliation: Kansas City, Mo.; and Kansas City, Kan.|From the Division of Anatomy, Kansas City University of Medicine and Biosciences; and the Department of Plastic Surgery, University of Kansas Medical Center.
authors.forename: Christopher C
authors.initials: CC
authors.lastname: Surek
mesh_terms: D002102:Cadaver; D054644:Ear Auricle / Q000294:innervation*; D005260:Female; D006801:Humans; D008297:Male; D015361:Rhytidoplasty