Document Detail

The definition of the V zone for the safety space of functional surgery of the tongue.
MedLine Citation:
PMID:  22183629     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES/HYPOTHESIS: To define safety space for functional surgery of the tongue.
STUDY DESIGN: Prospective nonrandomized study.
METHODS: Computed tomographic angiography of the lingual artery was performed in 107 in-patients with obstructive sleep apnea syndrome and 17 controls. The safety space was ascertained according to the course of lingual artery.
RESULTS: The course of the lingual artery, termed the Big Dipper bowl of the tongue, was similar in each group. The tissue above the lingual artery and the vacuity of the hypoglossal/lingual artery neurovascular bundle (HLNVB) formed a three-dimensional structure. The anterior part was named the V prozone. Its anterior border was the tangent plane of the deep lingual artery, its posterior border the circumvallate papilla, its width the interval of bilateral margins at the corresponding parts of the tongue, and its height the level of the middle lingual frenulum. The posterior portion between the bilateral dorsal arteries in the tongue base was named the V postzone. Its width was 31.42 ± 3.82 mm when the tongue was in a resting position, and its height was the distance from the foramen cecum to the bottom of the epiglottic vallecula. The inferior part under the intrinsic lingual muscles was named the hypoglossal floor. It is a relatively restricted surgery zone.
CONCLUSIONS: The V zone of the tongue without HLNVB travelling provides enough of safety space for functional surgery on the tongue.Laryngoscope, 122:66-70, 2012.
Tiening Hou; Jinyan Shao; Songhua Fang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Laryngoscope     Volume:  122     ISSN:  1531-4995     ISO Abbreviation:  Laryngoscope     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  United States    
Other Details:
Languages:  eng     Pagination:  66-70     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 The American Laryngological, Rhinological, and Otological Society, Inc.
Department of Otolaryngology-Head and Neck Surgery, Affiliated Sir Run Run Shaw Hospital, Medical College, Zhejiang University, Hangzhou, China.
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