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

Jung Hee Bae; Joo Heon Lee; Kwan Hyun Youn; Mi Sun Hur; Kyung Seok Hu; Tanvaa Tansatit; Hee Jin Kim

doi:10.1177/1090820X14541959

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

Jung Hee Bae, Joo Heon Lee, Kwan Hyun Youn, Mi Sun Hur, Kyung Seok Hu, Tanvaa Tansatit, Hee Jin Kim

Department of Oral Biology

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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.

Original language	English
Pages (from-to)	NP43-NP49
Journal	Aesthetic surgery journal / the American Society for Aesthetic Plastic surgery
Volume	34
Issue number	7
DOIs	https://doi.org/10.1177/1090820X14541959
Publication status	Published - 2014 Sept 1

Bibliographical note

Publisher Copyright:
© 2014 The American Society for Aesthetic Plastic Surgery, Inc.

All Science Journal Classification (ASJC) codes

Surgery

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10.1177/1090820X14541959

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title = "Surgical consideration of the anatomic origin of the risorius in relation to facial planes",

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.",

author = "Bae, {Jung Hee} and Lee, {Joo Heon} and Youn, {Kwan Hyun} and Hur, {Mi Sun} and Hu, {Kyung Seok} and Tanvaa Tansatit and Kim, {Hee Jin}",

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T1 - Surgical consideration of the anatomic origin of the risorius in relation to facial planes

AU - Bae, Jung Hee

AU - Lee, Joo Heon

AU - Youn, Kwan Hyun

AU - Hur, Mi Sun

AU - Hu, Kyung Seok

AU - Tansatit, Tanvaa

AU - Kim, Hee Jin

PY - 2014/9/1

Y1 - 2014/9/1

N2 - 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.

AB - 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.

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

Abstract

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