Related Experiment Video
Updated: Jul 29, 2025

19:53
Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
Published on: March 1, 2015
105.9K
Artificial Intelligence in Surgical Evaluation: A Study of Facial Rejuvenation Techniques
Aesthetic Surgery Journal. Open Forum
|May 25, 2023
Summary
This study used artificial intelligence to objectively analyze facial rejuvenation surgery outcomes, finding significant improvements in happiness and reductions in anger with the high SMAS facelift technique. This AI approach offers a new standard for assessing aesthetic surgery success.
Area of Science:
- Plastic Surgery
- Artificial Intelligence in Medicine
- Facial Aesthetics
Background:
- Aesthetic facial surgery outcomes are traditionally subjective, hindering objective comparisons.
- This limits the ability to reliably assess the effectiveness of different surgical techniques.
Purpose of the Study:
- To demonstrate the utility of artificial intelligence (AI) software in objectively analyzing facial rejuvenation techniques.
- To reduce subjective bias in the assessment of aesthetic surgical outcomes.
Main Methods:
- A retrospective case study included 32 patients undergoing facial rejuvenation with concomitant procedures (2015-2017).
- Patients were divided into three groups based on facelift technique: SMAS plication, SMASectomy, and high SMAS.
- AI analyzed pre- and post-operative images for emotion and action unit (AU) alterations.
Main Results:
- The high SMAS facelift group (Group C) showed a significant increase in detected happiness (1.03% to 13.17%, P=.008) and a decrease in detected anger (14.66% to 0.63%, P=.032).
- This correlated with increased intensity of the lip corner puller AU (0% to 18.7%).
- Other groups (A and B) did not show significant emotional changes or discernible AU patterns.
Conclusions:
- This study presents the first proof of concept for using machine learning software to objectively evaluate aesthetic facial surgery outcomes.
- While not claiming technique superiority due to patient heterogeneity, it establishes a foundation for future AI-driven research in facial rejuvenation.

