Kornstein Andrew N
Aesthet Surg J Open Forum. 2020 Feb 11;2(1):ojz035. doi: 10.1093/asjof/ojz035. eCollection 2020 Jan.
Skin laxity and dynamic rhytids that signify facial aging are due, in part, to atrophic changes and volume redistribution in the underlying layers of the face: the bone and soft tissue. A microneedling device that delivers bipolar radiofrequency (RF) energy directly to the reticular dermis has been shown to yield rejuvenated, tighter skin in 100% of patients. Herein, the author describes a modification to the standard dermal technique in which the skin is gently gathered with the nondominant hand, and the microneedling device is tilted to deliver RF energy to the mimetic muscles-including the frontalis, orbicularis oculi, and orbicularis oris-as well as the dermis. Muscle penetration was inferred by intraoperative bleeding and postoperative bruising, neither of which is typical of standard RF microneedling. Preliminary findings suggest that the modified procedure may yield greater aesthetic benefits than achieved with dermal application alone, including subtle lifting of the brow and oral commissure, upper-lip shortening with vermilion eversion, tightening of the lower-lid fat pads, and reduction in lateral-canthal rhytids. Although this modified technique will need to be optimized and evaluated in large, controlled studies, the initial results presented herein are encouraging.
皮肤松弛和动态皱纹是面部衰老的表现,部分原因是面部深层组织(骨骼和软组织)的萎缩性变化和体积重新分布。一种将双极射频(RF)能量直接输送到网状真皮层的微针设备已被证明能使100%的患者皮肤恢复活力、更加紧致。在此,作者描述了对标准真皮技术的一种改进,即非优势手轻轻聚拢皮肤,将微针设备倾斜,以便将射频能量输送到表情肌(包括额肌、眼轮匝肌和口轮匝肌)以及真皮层。术中出血和术后瘀伤提示肌肉穿透,而这两种情况在标准射频微针治疗中并不常见。初步研究结果表明,与单纯真皮应用相比,改良后的手术可能会带来更大的美学益处,包括眉毛和口角的细微提升、上唇缩短伴朱红色外翻、下睑脂肪垫收紧以及外眦皱纹减少。尽管这种改良技术需要在大规模对照研究中进行优化和评估,但本文给出的初步结果令人鼓舞。