0 200

Cited 0 times in

Ultrasonographic analyses of Crow's feet and novel guideline for botulinum toxin injection

 Jiong-Zhen Piao  ;  Wook Oh  ;  You-Jin Choi  ;  Ji-Hyun Lee  ;  Hyungkyu Bae  ;  Kyung-Seok Hu  ;  Hyoung-Moon Kim  ;  Hee-Jin Kim 
 JOURNAL OF COSMETIC DERMATOLOGY, Vol.21(9) : 3787-3793, 2022-09 
Journal Title
Issue Date
Adult ; Blepharoplasty* / methods ; Botulinum Toxins* ; Botulinum Toxins, Type A* ; Facial Muscles / diagnostic imaging ; Female ; Humans ; Male ; Rhytidoplasty* / methods ; Skin Aging*
botulinum neurotoxin injection ; crow's feet ; orbicularis oculi muscle ; ultrasound-guided injection
Background: Crow's feet are bilateral orbital wrinkles formed by the orbital portion of the orbicularis oculi muscle, which is the target muscle for botulinum neurotoxin (BoNT) injection.

Objectives: This study's aim was to demonstrate a novel BoNT injection guideline by assessing muscle width, thickness, and dynamic features using ultrasonography.

Methods: Twenty healthy Korean volunteers (10 men, 10 women; mean age, 25.6) participated. The width, thickness, and dynamic movement of the orbicularis oculi muscle were measured using ultrasonography. Two volunteers were selected to receive BoNT injections. Injections were administered using a novel method with two curved reference lines passing a point 15 mm lateral to the lateral canthus (conventional injection) and a point 5 mm lateral to the lateral margin of the frontal process of zygomatic bone (additional injection).

Result: At the lateral canthus level, the distance between the lateral margin of the frontal process and the most lateral margin of the orbicularis oculi muscle was 12.5 ± 1.3 mm. The thickness of the orbicularis oculi muscle at the midpoint of the frontal process, the lateral marginal of the frontal process, and 5 mm lateral to the lateral marginal of the frontal process was 0.7 ± 0.3 mm, 1.1 ± 0.3 mm, and 1.2 ± 0.3 mm, respectively. The crow's feet of the two volunteers began to disappear from day 3 and completely disappeared on day 7 after the injection.

Conclusion: The novel injection technique based on the ultrasonographic anatomy resulted in improvements in the appearance of crow's feet.
Full Text
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Choi, You Jin(최유진) ORCID logo https://orcid.org/0000-0003-3701-2200
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.