Hoevenaren I A, Wesselius T S, Meulstee J W, Vreeken R D, Maal T J J, Ulrich D J O
Department of Plastic, Reconstructive and Hand Surgery, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Department of Plastic, Reconstructive and Hand Surgery, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
J Plast Reconstr Aesthet Surg. 2017 Apr;70(4):495-500. doi: 10.1016/j.bjps.2016.12.003. Epub 2017 Jan 8.
With the increasing popularity of rejuvenation treatments of the skin, there has been an increase in patient inquiry for rejuvenation of the hand. Thus far, no imaging tool exists to analyze the aging process of the hand. Three-dimensional (3D) stereophotogrammetry is a reliable technique, which is used for other purposes in soft tissue analysis of the upper extremity. This pilot study aimed to investigate the possibility of visualizing the hand aging process by 3D stereophotogrammetry.
A total of 64 healthy volunteers were divided into four groups based on age and sex, and a 3D photograph of both hands was captured. Differences in the aspect of the dorsum of the hands were quantified and visualized using two methods. The first method quantified the smoothness of the old and young dorsa. The second method visualized the differences between an average young and old hand by creating a color-coded distance map.
The first method showed that the young hands were smoother than the old hands; however, this difference was not statistically significant (p = 0.30). The distance map resulting from the second method showed a relative volume loss in the intermetacarpal spaces of the average old hand. These differences were not present when male hands were compared with female hands.
This pilot study shows that 3D stereophotogrammetry can be used to visualize the exact areas of volume loss on the dorsum of the aging hand. On the basis of this finding, specific treatment areas can be identified, and the results of different esthetic hand surgery procedures can be objectively analyzed and compared.
随着皮肤年轻化治疗越来越受欢迎，患者对手部年轻化的咨询也有所增加。到目前为止，还没有成像工具可用于分析手部的衰老过程。三维（3D）立体摄影测量法是一种可靠的技术，在上肢软组织分析中有其他用途。这项初步研究旨在探讨通过3D立体摄影测量法可视化手部衰老过程的可能性。
总共64名健康志愿者根据年龄和性别分为四组，并拍摄了双手的3D照片。使用两种方法对手背外观的差异进行量化和可视化。第一种方法量化了年轻和老年手背的光滑度。第二种方法通过创建颜色编码距离图来可视化平均年轻和老年手之间的差异。
第一种方法显示年轻的手比老年的手更光滑；然而，这种差异没有统计学意义（p = 0.30）。第二种方法得到的距离图显示平均老年手的掌骨间隙有相对体积损失。当比较男性和女性的手时，这些差异不存在。
这项初步研究表明，3D立体摄影测量法可用于可视化衰老手部背侧确切的体积损失区域。基于这一发现，可以确定特定的治疗区域，并且可以客观地分析和比较不同手部美容手术的结果。
