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Topography of the third portion of the maxillary artery via the transantral approach in Asians

 Hyun-Ho Kwak  ;  Jae-Beom Jo  ;  Kyung-Seok Hu  ;  Chang-Seok Oh  ;  Ki-Seok Koh  ;  In-Hyuk Chung  ;  Hee-Jin Kim 
 JOURNAL OF CRANIOFACIAL SURGERY, Vol.21(4) : 1284-1289, 2010 
Journal Title
Issue Date
Aged ; Asian Continental Ancestry Group* ; Cadaver ; Dissection ; Humans ; Korea ; Maxillary Artery/anatomy & histology* ; Maxillary Artery/surgery ; Maxillary Sinus/anatomy & histology* ; Pterygopalatine Fossa/anatomy & histology*
Maxillary artery ; transantral approach ; pterygopalatine fossa
The maxillary artery (MA) passes over the lateral pterygoid muscle in the infratemporal fossa and enters the pterygopalatine fossa through the pterygomaxillary fissure. Refractory epistaxis is managed by ligation of the sphenopalatine artery via a transmaxillary-transantral approach; there is considerable risk of complications associated with such invasive surgical approaches. The aim of this study was to describe the gross anatomy and variations therein of the MA and its branches at the pterygopalatine fossa. One hundred hemifaces of embalmed Korean adult cadavers were dissected to establish the precise course of the MA and its branching patterns. The average thickness of the posterior wall of the maxillary sinus was 0.8 mm, but varied over a wide range from 0.2 to 3.6 mm. We classified the third part of the MA into 3 morphological categories: looped (61%), bifurcated (19%), and straight (18%). Two cases could not be classified into any of these 3 categories. The pattern of the bifurcation between the sphenopalatine and descending palatine arteries was classified into 4 types: Y (19%), intermediate (36%), M (17%), and T (28%). The posterior wall of the maxillary sinus was divided into 9 sections. The branching areas of the sphenopalatine and descending palatine arteries were most frequently (62% of cases) located at the top of the medial partition and at the middle of the medial partition (30% of cases).
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2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Chung, In Hyuk(정인혁)
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
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