The authors present quantitative and objective 3D data from their studies showing long-term results with facial volume augmentation. The first study analyzes fat grafting of the midface and the second study presents augmentation of the tear trough with hyaluronic filler. Surgeons using 3D quantitative analysis can learn the duration of results and the optimal amount to inject, as well as showing patients results that are not demonstrable with standard, 2D photography.
Three-dimensional photography
Three-dimensional (3D) photography provides a means for objective evaluation of both pretreatment facial volume loss and the results of volume replacement therapy in treatment of the aging face. In recent years there has been an increasing appreciation of the role of facial volume changes in the aging process and the benefits of implementing volume augmentation as part of the facial rejuvenation armamentarium. One of the challenges leading to this change was making patients and physicians aware of the volume changes that occur with aging and providing a means of showing the results of addressing these. Standard two-dimensional (2D) photography has limitations in providing this information, providing limited information on volume changes and thus being inadequate in evaluating the success of facial augmentation techniques. Before the development of 3D photography, there was no reliable or in-office method to quantitatively measure and assess volume replacement treatment using either injectable fillers or autologous fat grafting. Analysis of standard 2D photographs with subjective rating systems of improvement was the only methods used in measuring outcomes of facial augmentation. The subjectivity of these techniques was an inherent weakness that led to debates regarding the adequacy of study results.
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