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Demand for safe, less aggressive and cost-efficient treatment modality to improve skin quality and appearance following scarring or photoaging is increasing steadily. A treatment modality that preserves the epidermis while promoting regeneration rather than cicatrization would be ideal. Percutaneous collagen induction (PCI) therapy or microneedling is claimed to approach this ideal objective. The current comprehensive literature review is intended to analyze the scientific basis supporting this therapeutic modality and to evaluate the efficacy of PCI microneedling therapy versus no treatment of patients with photoaged skin and scars of various etiologies on aesthetic skin rejuvenation, skin tightening and scar quality in prospective, retrospective and experimental studies. Twenty-five published studies were identified and included in this review. Four publications are experimental animal studies; most clinical reports are case series or small cohort non-randomized studies or trials lacking methodological unity with a heterogenous mix of scars, wrinkles and skin laxity being treated. The majority are studies about management of scars of various etiologies while only 4 specifically investigated the effect of PCI on wrinkles and aging skin. One study compared burn scar erythema in the treated area to the untreated area, and 5 studies included histologic evaluation of biopsies. Despite PCI promising therapeutic benefits and its increasing cosmetic applications, the current literature review unfortunately revealed a limited number of high-quality studies mostly experimental. Data and conclusions of clinical studies must be carefully interpreted before translating the evidence presented into clinical recommendations.

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Aesthetic plastic surgery is a most unusual and unique subspecialty. Unlike other medical and surgical specialties driven primarily by objective medical diagnosis and outcome, aesthetic surgery is patient driven; it represents a special exercise in professional competence by adapting objective medical standards to a mostly subjective field. Given the subjectivity of facial beauty and of the projected aesthetic intervention outcome, in addition to be able to determine beauty of the final result as precisely and objectively as possible, it is also essential to be able to assess patient's satisfaction. However, lack of standardized facial measurements and clear definition of aesthetic outcome and beauty are still major obstacles preventing real change in the consultation dynamics to help better serve patients' expectations. Because of the tremendous increase in demand for all types of facial aesthetic procedures, an objective understanding of aesthetics and beauty is becoming of utmost importance. Recognition of the importance of science and evidence-based medicine is long overdue in our specialty. This study aims at identifying the most recently available evidence-based measures to quantitatively assess beauty and measure outcome of rhytidoplasty that can be useful in everyday aesthetic practice.

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 .

Background: Recurrent ptosis may occur after mastopexy procedures over time. The volume distribution mastopexy technique provides breast lifting with projection enhancement and maintains breast suspension. Method: Since 2010, 50 patients underwent volume distribution mastopexy procedures. The technique consists of a superior or superomedial pedicle, dissection of a Würinger-septum-based chest wall flap, suspension of the flap to the pectoralis major muscle using a prosthetic mesh, gland suture to the mesh, and fat grafting if required. A prospective study was conducted. Nipple position and length of the lower pole distance of the breast were noted. Patient satisfaction and results evaluation were reported using a Likert scale. Results: A Vicryl mesh was used in the first 23 patients and a mixed polyester/ Vicryl mesh was used in the following 27 patients. Wound dehiscence occurred in one patient. At an average follow-up of 3 years, nipple position remained stable in position, but lower pole distance elongation was observed in five patients (20 percent) and in one patient (3 percent) who had Vicryl mesh and mixed mesh respectively (p < 0.05). Only four breasts (4.7 percent) demonstrated significant lower pole elongation over time (>15 percent), all in the Vicryl mesh group. Worth noting, both the patients and the independent evaluators provided high ratings of the result of 4.7 and 4.6, respectively, on a Likert scale. Conclusions: The volume distribution mastopexy technique repositions the ptotic gland with a mesh to suspend the breast gland and to maintain the lifting effect. However, the synthetic mixed mesh proved to be significantly more effective in achieving this goal.

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