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Surgical consideration of the anatomic origin of the risorius in relation to facial planes

Authors
 Jung-Hee Bae  ;  Joo-Heon Lee  ;  Kwan-Hyun Youn  ;  Mi-Sun Hur  ;  Kyung-Seok Hu  ;  Tanvaa Tansatit  ;  Hee-Jin Kim 
Citation
 Aesthetic Surgery Journal, Vol.34(7) : 43-49, 2014 
Journal Title
 Aesthetic Surgery Journal 
ISSN
 1090-820X 
Issue Date
2014
Abstract
Background: Confusion exists as to the plane of the risorius with respect to the superficial musculoaponeurotic system (SMAS), the parotid fascia, and the masseteric fascia, which generally are considered origins of the risorius. Objectives: The authors attempted to clarify the origin of the risorius by topographic examination and dissection, which would provide valuable anatomic information for flap dissection in facelift surgery. Methods: Detailed dissection was performed in the perioral region of 46 cadaveric specimens to discern the origin of the risorius in relation to the fascial layer. The anatomic aspects of the muscular arrangement and origin of the risorius were classified according to the location of attachment. Results: The risorius originated solely from the fascial layer superficial to the SMAS in 27 specimens (58.7%; type A). It originated solely from the masseter tendon in 3 specimens (6.5%; type B) and from the fascial layers, both superficial and deep to the SMAS, in 16 specimens (34.8%; type C). Conclusions: The patterns of risorius origination identified in this study represent important anatomic reference information for flap dissection in facelift surgery.
Full Text
http://aes.sagepub.com/content/34/7/NP43.long
DOI
10.1177/1090820X14541959
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Bae, Jung Hee(배정희)
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/100035
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