Experience and Indications for the Use of the P4HB Scaffold (GalaFLEX) in Aesthetic Breast Surgery: A 100-Case Experience

Artificial Intelligence, Genuine Outcome: Analysis of 72 Consecutive Cases of Subfascial Augmentation Mastopexy With Smooth Round Implants Supported by P4HB Scaffold

BACKGROUND

Ptosis recurrence often leads to unsatisfactory results after mastopexy, even more so when additional stress is provided by implants on compromised native tissue. The poly-4-hydroxybutyrate(P4HB) scaffold (GalaFLEX) with its favorable safety profile and proven long-term mechanical strength represents a preferred option for soft tissue support.

OBJECTIVES

The primary endpoint was assessment of lower pole stretch from the early postoperative period up to 3 years.

METHODS

Out of 151 patients who underwent surgery by G.B. from March 2020 to December 2023, a total of 72 with a 12-month-mininum follow-up who had primary (46) or secondary (26) augmentation mastopexy with subfascial round smooth implants and P4HB scaffold support were included in the study. Three-dimensional artificial intelligence software was utilized for all measurements. Further analysis included evaluation of ptosis recurrence and all complications.

RESULTS

No recurrent ptosis, bottoming out, implant displacement, or capsular contracture was reported during follow-up (mean, 24.8 months). The lower pole arch's elongation was 8.04% and 9.44% at 1 and 3 years respectively, comparing favorably with previous reports. Statistically significant correlation (P < .05) between implant size and lower pole stretch was noted, this being greater for larger implants (> 400 cc; P = .0011) and primary cases (P = .1376). Progressive volume redistribution from upper to lower pole was observed in the first year, with substantial stability thereafter.

CONCLUSIONS

This is the largest published series reporting long-term results (up to 45 months) in mastopexy augmentation with GalaFLEX, suggesting its supportive role in lower pole stability even in the setting of concurrent breast augmentation with smooth implants in a subfascial plane.

LEVEL OF EVIDENCE: 4

Internal Bra: A literature Review and Sub-Classification of Definitions

BACKGROUND

The term 'internal bra' refers to a range of techniques that aim to stabilise the position of the breast and improve longevity of surgical results. It is increasingly being used to describe techniques in surgical literature and on patient information platforms, including social media. However a lack of consistency in the use of the term is a potential source of confusion and conflicting information.

OBJECTIVES

This narrative review aims to improve understanding of what is meant by the term 'internal bra', by providing an overview of the different techniques it refers to and suggesting more specific terminology for use going forward.

METHODS

A literature search of the Medline, Embase, and Google Scholar databases was conducted to identify papers in which a surgical technique was described using the term 'internal bra'.

RESULTS

'Internal bra' techniques can be categorised into 5 groups: mesh techniques, acellular dermal matrix techniques, suture techniques, dermal flap techniques, and muscle techniques. Promising results exist for techniques in each group; however, research is generally limited by small studies with short follow up periods, and significant inconsistencies exist in use of the term 'internal bra'.

CONCLUSIONS

The titles of the five groups identified in this paper should be used going forward when discussing 'internal bra' techniques, in order to bring greater clarity to both surgical literature and patient information. Further research is also required to establish if 'internal bra' techniques truly improve longevity of surgical results and if one technique, or group of techniques, is superior.

NO LEVEL ASSIGNED

This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to Table of Contents or the online Instructions to Authors www.springer.com/00266.

Innovative Application of GalaFLEX Poly-4-Hydroxybutyrate Scaffold in Breast Reduction/Mastopexy with Inferiorly Based Dermo-adipose Flap

Breast reduction is one of the most required plastic surgery procedures worldwide, improving significantly the quality of life for patients with macromastia and gigantomachia. Despite various proposed approaches aiming to yield more stable results postreduction, no single technique has demonstrated unequivocal superiority. Recurrence ptosis at 6-12 months postoperative remains a challenging concern. To improve this issue, the authors propose a novel application of the poly-4-hydroxybutyrate (P4HB) scaffold on the anterior surface of the Ribeiro dermo-adipose flap. The primary aim was to establish a durable and resilient biological connection between the mammary gland and the flap, thereby promoting long-lasting outcomes in breast reduction procedures. The P4HB scaffold is a monofilament, single-layer, biologically derived, fully resorbable, rapidly integrating within breast tissue; this biological process stimulates the formation of freshly vascularized connective tissue up to a thickness of 2-3 mm. Within 18-24 months, the scaffold undergoes gradual resorption through hydrolysis-based mechanism, providing enhanced strength and resistance to the native tissue, as shown in animal model. A key innovation proposed by the authors involves the division of a 15 × 20 cm rectangular sheet of the P4HB scaffold along its diagonal, resulting in two right triangles. This modification ensures increased height of the device if compared with the traditional splitting technique of the scaffold. The strategic establishment of a biological bridge between the mammary gland and flap through the implementation of the P4HB scaffold could potentially enhance the longevity and aesthetics of breast reduction outcomes.

Fully resorbable poly-4-hydroxybutyrate (P4HB) mesh for soft tissue repair and reconstruction: A scoping review

Background

Poly-4-hydroxybutyrate (P4HB) is a fully resorbable, biologically-produced polymer with a strength and flexibility comparable to permanent synthetic polymers. The objective was to identify/summarize all peer-reviewed publications involving P4HB mesh.

Methods

A scoping review was conducted within PubMed and included articles published through October 2022.

Results

A total of n = 79 studies were identified (n = 12 in vitro/bench; n = 14 preclinical; n = 6 commentaries; n = 50 clinical). Of the clinical studies, n = 40 reported results applicable to hernia and n = 10 to plastic/reconstructive surgery and involved patients of all Centers for Disease Control (CDC) wound classes and Ventral Hernia Working Group (VHWG) grades.

Conclusion

P4HB mesh provides long-term hernia repair strength and exhibits promising clinical outcomes beyond its resorption period. Future studies should include randomized controlled trials comparing P4HB to other biomaterials, as well as optimal patient selection, operative technique, long-term outcomes, minimization of potential mesh-related complications, and potential contraindications/complications for P4HB in hernia/abdominal wall reconstruction.

Peer Review: How to Review a Plastic Surgery Manuscript

ABSTRACT

Little information is available regarding how to review a plastic surgery manuscript. This vital responsibility ensures that publications meet an acceptable scientific standard. Thoughtful and thorough reviews are essential to protect patients and surgeons from unscientific practices and products. This discussion provides information for the reviewer, gained from the author's experience, including examples of a thorough review, likely to be useful to the editor, and a cursory one that is unhelpful.The first consideration is relevance. Prerequisites for publication include institutional review board approval, disclosure of financial conflicts, and discussion of the regulatory status of devices. Particular attention is needed to check for conflicts of interest, which are endemic in plastic surgery today. In view of the common practice of using computer-generated imaging, reviewers need to be especially vigilant for inauthentic "photoshopped" photographs. Examples of published images that have been digitally altered are provided.If data are available, it may be possible to check the statistical tests. Reviewers need to be aware of the practice of p-hacking. A quick literature search can identify relevant but unreferenced publications. The manuscript needs to be properly organized into sections. Minor points may be made regarding style. The study design and methodology need to be evaluated to be sure that the conclusions are well supported by data. Randomized studies are rarely feasible. Fortunately, well-done prospective observational studies in consecutive patients can be just as useful. Realistic complication rates are expected. Meta-analyses in plastic surgery are often subject to confounding variables. Comments should be available to the authors; confidential comments hidden from authors are discouraged. Like honesty, transparency is the best policy. Manuscripts should be evaluated solely for merit, not the identity of the author or institution. Timeliness of submission of the review is appreciated by authors.Evidence-based medicine is concerned solely with the facts. The 2 basic criteria are a solid scientific basis and reliable evidence of efficacy. Reviewers need to keep an open mind. Studies that challenge the status quo are often the most valuable ones and are needed for the advancement of the specialty.