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Σάββατο 14 Απριλίου 2018

Longitudinal Analysis of Superficial Midfacial Fat Volumes Over a 10-Year Period

Abstract

Background

Volumetric changes to facial fat that occur with aging remain poorly understood. The aim of this study was to evaluate for longitudinal changes to midfacial fat volumes in a group of individuals.

Methods

We conducted a retrospective longitudinal study of adult subjects who underwent multiple facial computed tomographic (CT) scans timed at least 8 years apart. Subjects who underwent facial surgery or suffered facial trauma were excluded. Facial CT scans were analyzed, and superficial cheek fat volumes were measured and compared to track changes that occurred with aging.

Results

Fourteen subjects were included in our analysis of facial aging (5 male, 9 female; mean initial age 50.9 years; mean final age 60.4 years). In the right superficial cheek there was an increase in mean (SD) superficial fat volume from 10.33 (2.01) to 10.50 (1.80) cc, which was not statistically significant (P = 0.75). Similar results were observed in the left cheek. There were no statistically significant longitudinal changes to caudal, middle, or cephalad subdivisions of bilateral superficial cheek fat. A simple linear regression was performed to predict superficial cheek fat pad volume based on age which did not reach statistical significance (P = 0.31), with an R2 of 0.039.

Conclusions

This study is the first to quantitatively assess for longitudinal changes to midfacial fat in a group of individuals. Superficial cheek fat remained stable as subjects aged from approximately 50 to 60 years old, with no change in total volume or redistribution within a radiographically defined compartment.

Level of Evidence IV

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.



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