Novel anatomical proposal for botulinum neurotoxin injection targeting depressor anguli oris for treating drooping mouth corner

• 영문명: Novel anatomical proposal for botulinum neurotoxin injection targeting depressor anguli oris for treating drooping mouth corner
• 발행기관: 대한해부학회
• 저자명: Kyu-Ho Yi Ji-Hyun Lee Hye-Won Hu You-Jin Choi Kangwoo Lee Hyung-Jin Lee Hee-Jin Kim
• 간행물 정보: 『Anatomy and Cell Biology』Vol.56(2), 161~165쪽, 전체 5쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2023.06.30

영문 초록

The depressor anguli oris (DAO) muscle is a thin, superficial muscle located below the corner of the mouth. It isthe target for botulinum neurotoxin (BoNT) injection therapy, aimed at treating drooping mouth corners. Hyperactivity of the DAO muscle can lead to a sad, tired, or angry appearance in some patients. However, it is difficult to inject BoNT into the DAO muscle because its medial border overlaps with the depressor labii inferioris and its lateral border is adjacent to the risorius, zygomaticus major, and platysma muscles. Moreover, a lack of knowledge of the anatomy of the DAO muscle and the properties of BoNT can lead to side effects, such as asymmetrical smiles. Anatomical-based injection sites were provided for the DAO muscle, and the proper injection technique was reviewed. We proposed optimal injection sites based on the external anatomical landmarks of the face. The aim of these guidelines is to standardize the procedure and maximize the effects of BoNT injections while minimizing adverse events, all by reducing the dose unit and injection points.

목차

Introduction

Review

Conclusion

ORCID

Author Contributions

Conflicts of Interest

Funding

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References

키워드

Botulinum toxins Depressor anguli oris Drooping mouth corner Dermotoxin Anatomy