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Aesthetic Plastic Surgery

, Volume 37, Issue 5, pp 975–983 | Cite as

Understanding the Functional Anatomy of the Frontalis and Glabellar Complex for Optimal Aesthetic Botulinum Toxin Type A Therapy

  • Z. Paul Lorenc
  • Stacy Smith
  • Mark Nestor
  • Diane Nelson
  • Amir Moradi
Review Non-Surgical Aesthetic

Abstract

Background

Botulinum neurotoxin type A (BoNTA) is approved for the treatment of glabellar lines and also is commonly injected in an off-label fashion in the frontalis (i.e., frontalis epicranius) muscle to improve the appearance of horizontal forehead lines. This study aimed to review and discuss both the anatomy and physiology of the frontalis muscle and its relationship with antagonist muscles in the upper face and to provide a guide for the use of BoNTA to treat forehead rhytides while minimizing the occurrence of complications such as brow ptosis.

Methods

A PubMed search was conducted to identify practitioner opinion and clinical publications on the efficacy and safety of BoNTA for aesthetic treatment of the upper face.

Results

The use of BoNTA produces durable improvement in the appearance of moderate to severe horizontal forehead lines. Dose and injection technique must be adjusted and individualized based on the variable anatomy and function/mass of muscles in the forehead and upper face as well as on patient goals. Optimal aesthetic outcomes can be achieved by skillfully balancing the opposing effects of the frontalis muscle and its intricate interactions with the procerus, corrugator supercilii, depressor supercilii, and orbicularis oculi muscles.

Conclusions

The use of BoNTA to improve the aesthetic appearance of horizontal forehead lines is optimized when clinicians take into account variations in frontalis muscle function and position, anatomy of the brow, and proper injection technique when they devise individualized treatment regimens.

Level of Evidence V

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Keywords

AbobotulinumtoxinA Botulinum toxin Corrugator supercilii Depressor supercilii Frontalis epicranius muscle Glabella IncobotulinumtoxinA OnabotulinumtoxinA Orbicularis oculi Procerus 

Notes

Disclosures

Craig Albright, PhD, Michael Theisen, PhD, and Robert Gatley, MD, of Complete Healthcare Communications, Inc., Chadds Ford, PA, provided editorial support for this manuscript, with funding from Medicis, Division of Valeant Pharmaceuticals. Z. Paul Lorenc is advisor or consultant for Medicis and Johnson & Johnson Pharmaceutical Research & Development, LLC. Stacy Smith has served as a consultant for Fibrocell Science, Galderma, Medicis, Miramar Labs, SkinMedica, and Suneva Medical, and has received grants for clinical research from Allergan, Fibrocell Science, Galderma, Medicis, Miramar Labs, Revance, SkinMedica, and Suneva Medical. Mark Nestor has served as an advisory board member for Medicis, Galderma, Genentech, Merz, and Beiersdorf; as a consultant for Medicis, Galderma, Ulthera, Transdermal, and Erchonia; as a research investigator for Medicis, Galderma, Ulthera, Transdermal, and Erchonia; and as a speaker for Ulthera. Diane Nelson is an employee of Medicis. Amir Moradi has served as a speaker, consultant, and advisory board member for Allergan, Medicis, Skin Medica, and Bioform-Merz, and as a speaker trainer for Sciton Lasers.

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Copyright information

© Springer Science+Business Media New York and International Society of Aesthetic Plastic Surgery 2013

Authors and Affiliations

  • Z. Paul Lorenc
    • 1
  • Stacy Smith
    • 2
  • Mark Nestor
    • 3
  • Diane Nelson
    • 4
  • Amir Moradi
    • 5
  1. 1.Lorenc Aesthetic Plastic Surgery CenterNew YorkUSA
  2. 2.Private PracticeCardiffUSA
  3. 3.Center for Clinical and Cosmetic ResearchAventuraUSA
  4. 4.Medicis, Division of Valeant PharmaceuticalsScottsdaleUSA
  5. 5.Private PracticeVistaUSA

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