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Related Experiment Video

Updated: Jul 4, 2025

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
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Mentalis Muscle Reconstruction: An Innovative Technique.

Han Zeng1, Xiaolei Jin, Zong Chen

  • 1Department of Craniomaxillofacial Surgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Plastic Surgery Hospital.

The Journal of Craniofacial Surgery
|February 5, 2024
PubMed
Summary

Surgical correction of mentalis muscle rupture can restore chin appearance and function. This innovative approach reassembles muscle flaps and releases scar tissue, leading to improved outcomes for patients with this lower lip muscle injury.

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Area of Science:

  • Plastic Surgery
  • Reconstructive Surgery
  • Anatomy

Background:

  • The mentalis muscle is crucial for lower lip function and aesthetics.
  • Injury to the mentalis muscle can lead to significant impairment in appearance and function.
  • Mentalis muscle rupture is a condition requiring effective treatment strategies.

Purpose of the Study:

  • To present a novel surgical strategy for treating mentalis muscle rupture.
  • To restore muscle tension and improve the function of the lower lip.
  • To enhance the aesthetic appearance of the chin.

Main Methods:

  • Review of medical records and photographic data from two patients.
  • Comprehensive physical examinations and 3D computed tomography (CT) scans for detailed evaluation.
  • Individualized surgical planning based on specific malformations and patient desires.

Main Results:

  • Both patients experienced childhood-related mentalis muscle injuries, resulting in chin concavity and functional deficits.
  • Surgical reconstruction involved meticulous reassembly of muscle flaps and release of scarred soft tissues.
  • Patients reported high satisfaction with the functional and aesthetic results post-surgery.

Conclusions:

  • Surgical intervention is necessary for correcting mentalis muscle rupture.
  • The proposed innovative surgical approach effectively improves both the appearance and function of the lower lip.
  • This technique offers a promising solution for patients with mentalis muscle defects.