A Validated Photonumeric Scale for the Evaluation of Neck Skin Laxity

Area of Science:

• Aesthetics
• Dermatology
• Medical Imaging

Background:

• Neck aging assessment is typically combined with lower face evaluation.
• A dedicated scale for neck skin laxity is currently unavailable.

Purpose of the Study:

• To develop and validate a photonumeric scale for assessing neck skin laxity (NSL).

Main Methods:

• Collected frontal neck images from 110 subjects.
• Developed a 4-point photonumeric NSL scale (0-4).
• Validated the scale using intraobserver and interobserver reliability assessments.

Main Results:

• High intraobserver reliability (correlation 0.96-0.99) and consistency.
• Excellent interobserver agreement (0.97) and internal consistency.

Conclusions:

• The developed NSL scale is a reliable and reproducible method.
• It provides a standardized approach for evaluating neck skin laxity.