Gluteal Augmentation Techniques: A Comprehensive Literature Review

Multidisciplinary Experience for Gluteal Fat Grafting

BACKGROUND

Gluteal fat grafting, colloquially known as Brazilian Butt Lift, has experienced a significant rise in popularity in recent years. Despite this increase, potential complications associated with the procedure have also been observed, necessitating a thorough examination of the current practices and outcomes.

METHODS

This study collected experiences of a multidisciplinary group of surgeons through a detailed survey sent in April 2022. This study aimed to shed light on the practices employed by these surgeons, the frequency and types of complications they encounter, and the overall outcomes of their procedures.

RESULTS

Of the 100 surgeons surveyed, 86 responded. The study identified that pulmonary fat embolism (PFE) was the most serious complication, with fatality due to PFE recorded at a rate of 1:23,878. Liposuction site seromas were the most common complications, with an overall rate of 2.45%. Although there were no overall differences in complications between plastic and non-plastic surgeons, plastic surgeons were found to have a sixfold increase in the odds of experiencing a liposuction seroma. The survey also revealed substantial practice variations, particularly regarding fat preparation methods, recipient-site preparation, antibiotic use, and postoperative care protocols.

CONCLUSION

Despite known complications, a strong tendency to continue performing these procedures was observed among surgeons, demonstrating the sustained demand and acceptance of the procedure. This study underscores the need for continued surveillance and research to enhance the safety and effectiveness of gluteal fat grafts. The experiences and data gathered from practicing surgeons provide valuable insights, paving the way for refining techniques, building consensus, and facilitating informed discussions with patients about the risks and benefits of the procedure.

LEVEL OF EVIDENCE III

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 .

A Bibliometric Analysis of the Top 100 Papers on Gluteal Augmentation

Background

Gluteoplasty or gluteal augmentation is a popular cosmetic procedure that is used to improve the volume, shape, and contour of the buttocks.

Objectives

This bibliometric analysis aims to characterize emerging research trends and to assess the methodological quality of the highest impact gluteoplasty research.

Methods

The 100 most-cited publications in gluteoplasty were identified on Web of Science, across all available journal years (from Inception to August 2023). Study details, including the citation count, main content focus, and outcome measures, were extracted and tabulated from each publication. Oxford Centre for Evidence Based Medicine level of evidence (LOE) of each study was assessed.

Results

The 100 most-cited publications regarding gluteoplasty were cited by a total of 2375 publications. Citations per publication ranged from 5 to 176 (mean 23.75 ± 25.86), with the highest-cited study being authored by Simonacci, discussing autologous fat grafting (n = 176). Most publications were LOE 5 (n = 55), representative of the large number of case series and reports. The number of publications for LOE 1, 2, 3, and 4 was 1, 9, 13, and 22, respectively. The main content focus was "surgical technique" in 38 publications, followed by "outcomes" (n = 34) and "risk factors/prognosis" (n = 10). Patient-reported outcome measures (PROMs) were used in 20 publications, and 33 publications reported aesthetic outcome measures.

Conclusions

This analysis demonstrates a need for improvement in research methodologies regarding gluteoplasty research. This advancement would be facilitated by robust, high-quality research through randomized control trials and multicenter studies, as well as the further development of validated PROMs for gluteoplasty.

Level of Evidence 2

Analysis of 4725 Cases of Gluteal Augmentation with Intramuscular Fillers: A Clinical Cohort Study

Background

In recent years, the aesthetic market has become more prominent for being not only a tool to correct unwanted features but also a social means for improving quality of life. The use of 30% polymethylmethacrylate (PMMA) as a gluteal filler has grown in popularity all over the world, being sought after by men and women for body remodeling because it provides a natural look as well as significant long-lasting results.

Methods

A retrospective, multicenter study analyzed the medical records of 2801 patients who underwent a total of 4725 gluteal filler procedures between January 2009 and December 2021 at the different locations of Clínica Leger. The study protocol was approved by the Brazilian National Research Ethics Commission.

Results

The medical records of 2801 patients (2666 women and 135 men) who underwent 4725 gluteal filler injections were retrospectively analyzed. A total of 922,776 mL of PMMA was used (average = 329 mL/patient). The occurrence of 101 adverse events (2.1%) was observed, and no statistically significant relationship between the mean injected volume and the incidence of complications could be found.

Conclusions

According to the data presented in this study, the use of PMMA injections with the appropriate volumes for aesthetic treatments and corrections is safe and effective.

Minimally Invasive Video-Assisted Submuscular Gluteal Augmentation with Implants: An Innovative Technique

SUMMARY

Gluteal augmentation is one of the most requested cosmetic procedures. This article describes the surgical technique and early results of an innovative minimally invasive video-assisted submuscular gluteal augmentation with implants. The authors aimed to perform a technique that would reduce complications and surgical time. Fourteen healthy women without obesity or relevant pathologic background who requested gluteal augmentation with implants as a single procedure were included. The procedure was performed through bilateral parasacral 5-cm incisions at cutaneous and subcutaneous planes as far as the gluteus maximus muscle fascia. Through a 1-cm incision in the fascia and muscle, the index finger was introduced under the gluteus maximus, and a submuscular space was created by blunt dissection toward the greater trochanter to avoid a sciatic nerve injury, until the middle gluteus level was reached. Next, the balloon shaft of a Herloon trocar was introduced in the dissected space. Balloon dilatation in this submuscular space was performed as required. The balloon shaft was replaced by the trocar, through which a 30-degree 10-mm laparoscope was introduced. Submuscular pocket anatomic structures were observed, and while the laparoscope was being retrieved, hemostasis was verified. The submuscular plane collapsed, leaving the pocket for the implant to be placed. There were no intraoperative complications. The only postoperative complication was a self-limited seroma in one patient (7.1%). This innovative technique was simple to perform and safe, allowing direct visualization and hemostasis, with a short surgical time, low complication rate, and high degree of satisfaction.

Nonsurgical Gluteal Volume Correction with Hyaluronic Acid: A Retrospective Study to Assess Long-term Safety and Efficacy

Background

Augmentation and reshaping of body volume, particularly in the gluteal area, presents a significant challenge in aesthetic surgery. Hyaluronic acid (HA) fillers have emerged as an effective and safe tool for such indications, but literature examining nonsurgical gluteal reshaping with HA remains limited. This study aims to evaluate the long-term safety of using recommended volumes of HA body fillers for nonsurgical gluteal augmentation.

Methods

A retrospective, observational study was carried out across multiple centers in Italy and the United Arab Emirates. The study involved participants between 22 and 53 years of age who underwent gluteal augmentation using HA body filler (HYAcorp MLF1/2) between 2017 and 2021, with up to 4 years and 7 months of follow-up. Participants and investigators independently evaluated the procedure's effectiveness by comparing pre- and posttreatment photographs. The Global Aesthetic Improvement Scale was used to assess posttreatment satisfaction by both participants and investigators. All adverse effects (AEs) were recorded.

Results

The study included a diverse group of 91 participants. No serious adverse events were reported, with the majority of AE occurring shortly after treatment and resolving in 1 week. AEs were more frequently observed in participants with previous treatments using different substances in the treatment area.

Conclusions

The real-world application of HA body filler (HYAcorp MLF1/2) for gluteal augmentation in the participants of this study showed the treatment's effectiveness, with no severe adverse events reported among the participants. High levels of satisfaction were reported among both participants and investigators.

Autoimmune Autoinflammatory Syndrome Induced by Adjuvants (ASIA) After Injection of Foreign Materials for Cosmetic Purposes: Retrospective Analysis of 1027 Cases

BACKGROUND

The injection of illicit, non-regulated foreign materials may trigger an autoimmune autoinflammatory syndrome induced by adjuvants (ASIA).

METHODS

A retrospective review of health records was performed to identify patients' epidemiological and clinical characteristics. The issues analyzed were age and gender of cases, occupation, the person who administered the substance, anatomical site, type and volume of the injected substance, time from injection to the onset of symptoms, chief complaint, measures taken to alleviate symptoms, local complications, systemic manifestations, and imaging method to aid in diagnosis.

RESULTS

More than 70% of patients were female and dedicated to household activities; the mean age was 44 years for females and 40.7 years for males. One-quarter of patients reported some comorbidity. The most commonly reported substance was mineral oil, whereas the most frequent anatomical site was the gluteal region with volumes around one liter. Signs and symptoms occurred almost exclusively at a local level, pain (40%) and swelling (18%) being the predominant manifestations with a peak incidence after three years. Treatment was mainly medical; surgery, primarily en bloc resection, was performed in 20% of patients.

CONCLUSIONS

A myriad of substances may induce autoimmune autoinflammatory syndrome induced by adjuvants (ASIA) when injected for cosmetic purposes. Since effective treatments are scarce, public policies should be enforced to alert the community and limit the consequences of this healthcare problem.

LEVEL OF EVIDENCE V

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 .

Effectiveness and Role of Using Hyaluronic Acid Injections for Gluteal Augmentation: A Comprehensive Systematic Review of Techniques and Outcomes

INTRODUCTION

There has been a rapid increase in the number of patients undergoing non-surgical gluteal augmentation in recent years, leading to an increase in the number of articles in the literature regarding the use of hyaluronic acid (HA) for gluteal augmentation. No systematic review has been published on the effectiveness of HA for gluteal augmentation. This study aimed to provide a comprehensive review regarding the effectiveness and role of using HA for gluteal augmentation.

METHODS

This review was conducted according to the PRISMA guidelines for reporting systematic reviews and meta-analyses. We conducted a search across MEDLINE, EMBASE, Cochrane, and Google Scholar, using the following search keywords: gluteus, buttocks, gluteoplasty, gluteal augmentation, hyaluronic acid, and filler.

RESULTS

Ten articles published between 2013 and 2022 that included 168 patients. The estimated duration of product effectiveness is 16.16 months. Most studies showed statistically significant improvements in patients' satisfaction. Mean volume of HA injected for optimal gluteal fat augmentation was 206.71 ml. Of included studies, two reported major complications, five patients experienced bruising and erythema as minor complications, five patients experienced effusion and inflammation at the injection site, three patients experienced gel dislocation, and one patient experienced irregular contours.

CONCLUSIONS

Based on our findings, HA is a predictable method for gluteal augmentation. Patients were satisfied with their outcomes. Despite gluteal augmentation with HA having a modest complication rate, it can still involve serious complications such as diffuse alveolar hemorrhage and death. There is a need for further research in a randomized control trial.

LEVEL OF EVIDENCE III

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 .

Subfascial/Intramuscular Dual-Plane Gluteal Implantation and Supplemental Fat Grafting: A Novel Technique for Buttock Augmentation

BACKGROUND

Much debate exists within the current literature as to which plane is safest and most effective for gluteal implant buttock augmentation. A novel subfascial/intramuscular (SF/IM) dual-plane technique appears to combine the benefits of each plane.

OBJECTIVES

The aim of this study was to describe our experience with SF/IM plane gluteal implantation, and to discuss its indications, efficacy, and safety, and offer recommendations on its proper use.

METHODS

A retrospective chart review was conducted of 175 consecutive cases of gluteal augmentation with solid silicone implants in the SF/IM pocket, with and without supplemental autologous fat transfer. Outcomes from all patients were analyzed to determine the rate of complication and need for surgical revision.

RESULTS

In 175 cases of bilateral buttock augmentation with gluteal implantation using the SF/IM pocket, the most common complication was infection. This complication was seen in 13 cases (7.43%), 7 (4%) of which were superficial and did not require surgical intervention. Other complications included dehiscence, seroma, capsular contracture, and implant migration.

CONCLUSIONS

The SF/IM gluteal implantation, in combination with liposculpture and autologous fat transfer into the overlaying subcutaneous space, allows for a durable cosmetic augmentation of the buttocks in patients lacking sufficient volume for augmentation with fat transfer alone. This technique was found to have complication rates similar to those of other established augmentation techniques, as well the cosmetic advantages of a large, stable pocket with thick, soft tissue coverage of the inferior pole.

Complications of Fat Grafting Versus Implants in Gluteal Augmentation: A Retrospective Review and Lessons Learnt

There have been various studies and literature reviews about gluteal augmentation, possibly due to the high complication rates associated with the procedure. But in the recent past, there has been extensive work in an effort to reduce the complications and various different methods have been developed for this purpose. This article brings to view the procedure followed in our surgery centre for fat grafting and implants for gluteal augmentation. We have compiled the complications we encountered with these procedures and the lessons we learnt to prevent them. LEVEL OF EVIDENCE III: 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 .

The Hybrid Technique for Autologous Gluteal Augmentation

This article accompanying these videos will describe the technique created and innovated by the senior author for gluteal augmentation with autologous fat transfer. While the principles of gluteal fat grafting originated with Pitanguy, Regnault, Gonazalez, and Spina, the nuances vary greatly from surgeon to surgeon. Although there is much controversy regarding gluteal fat grafting, the major principle of avoiding intramuscular injection is the central pillar of safe and effective augmentation today. The senior author fine-tuned his method to optimize patient outcomes over the past 14 years and demonstrated lasting, aesthetic results while maximizing patient safety with his technique. More recently, the senior surgeon has developed the Hybrid Technique, involving manual injection of fat through a syringe and a power-assisted cannula to maximize aesthetic outcomes while adhering to safety principles. This method follows the deep and moderate depth subcutaneous injection principle while respecting the muscular, neurovascular, and ligamentous anatomy of the buttock.

Level of Evidence 4

Safety and Efficiency of Minimally Invasive Buttock Augmentation: A Review

BACKGROUND

Volume restoration and enhancement of the gluteal region appearance has become nowadays a popular concern in particular for many women. Several options are available, none however are without complications and side effects. Volume enhancement with soft tissue fillers of the gluteal region is emerging as a highly attractive minimally invasive modality. It has led unfortunately to more unlicensed, nonmedical practitioners administering illicitly injections for buttock augmentation at relatively low costs.

MATERIALS AND METHODS

To determine safety, efficacy, and cost effectiveness of mostly used soft-tissue fillers for buttock augmentation, a systematic literature search of PubMed, Medline, and Embase was conducted to identify the mostly used fillers for gluteal augmentation. It was complemented by searching for each of the identified filler material separately to retrieve any missed reports. References of clinical studies and trials, reviews, and consensus reports were reviewed as well for the same objective.

RESULTS

In the final analysis 12, mostly strongly biased clinical reports providing a low level of evidence, were identified for inclusion in the review. Two studies involved Polymethylmethacrylate (PMMA), 5 Poly-L-lactic acid, 1 Calcium hydroxyapatite and 4 hyaluronic acid filler injection. No studies were identified involving liquid silicone or Polyacrylamide hydrogel. The little available evidence provided by this review indicates that a specific brand of PMMA in Brazil has a demonstrable relatively good safety, efficiency, and cost-effectiveness record superior to surgical alloplastic gluteal augmentation or to lipofilling only when injected by experts.

CONCLUSION

Gluteal augmentation with soft tissue fillers is not as simple and innocuous as advertised. Serious complications may occur. Moreover, optimal buttock contouring entails not only volume augmentation but also volume removal; thus, volume augmentation with soft tissue fillers may not be ideal. Popularizing this modality must also be approached with great care. Serious complications do occur; they become inevitable when performed illegally by non-specialized, non-authorized, and unscrupulous practitioners in non-accredited facilities. Patients must be warned that adherence to regulations is critical and that only well-trained certified experts practicing legally in accredited facilities can address safely and efficiently their concerns.

LEVEL OF EVIDENCE III

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 .

Concomitant use of radiofrequency and high intensity focused electromagnetic field energies for full-body remodeling: MRI evidence-based prefatory trial

BACKGROUND

Radiofrequency and HIFEM have been used as standalone modalities in body contouring. The novel device allows their synchronous emission simultaneously in a single applicator.

OBJECTIVES

This prelusive trial aims to investigate the safety and efficacy of such treatment when used on multiple body parts on the same day for a full-body remodeling.

METHODS

Three female subjects (21.0 ± 2.0 years) underwent 4 treatment sessions. The treatment was applied to the abdomen, saddlebags, inner thighs, and buttocks, during each visit, lasting 30 min for each site. The outcomes were assessed through examination of MRI images acquired at baseline and 3 months post-treatment. Fat and muscle thickness were measured at predefined locations. Weight and waist, hip, and thigh circumference records along with digital photographs were also taken.

RESULTS

Fat thickness measurement showed a reduction of 17.57 ± 3.22 mm in the saddlebag region, 12.43 ± 1.93 mm in inner thighs, and 10.65 ± 1.26 mm in the abdomen. The fat in the buttock region showed negligible changes. The muscle thickness increased on average by 2.98 ± 0.60 mm for rectus abdominis and 7.42 ± 1.56 mm for gluteus maximus. The circumferential reduction was also observed on the waist (7.83 ± 2.25 cm), at the level of outer thighs (2.83 ± 1.53 cm), and inner thighs (3.58 ± 1.84 cm). Digital photographs showed noticeable improvement in the overall body appearance. The treatments were safe, and no side effects were noted.

CONCLUSION

The preliminary outcomes indicate that the procedure delivering HIFEM and RF simultaneously on multiple body areas on the same day could be an effective and comfortable treatment for fat reduction on multiple body parts, thickening of underlying muscles, and overall improved aesthetic appearance.

Current Knowledge and Future Perspectives of Buttock Augmentation: A Bibliometric Analysis from 1999 to 2021

Background

The number of patients undergoing buttock augmentation surgery has increased rapidly with time, changes in people’s aesthetic perceptions, and the increased concern for their shape. The number of publications regarding buttock augmentation has also continued to increase. However, no bibliometric analysis concerning buttock augmentation has been published. This study aimed to provide a qualitative and quantitative evaluation of buttock augmentation-related publications using bibliometric analysis and information on research hotspots and trends in this field.

Methods

The buttock augmentation-related publications published between 1999 and 2021 were extracted from the Web of Science Core Collection (WOSCC) database for analysis. The data were analysed and presented using VOSviewer and Microsoft Excel.

Results

There were 492 articles in the (WOSCC) database, including 442 (89.84%) original research articles, with the number of publications increasing each year. The USA (208 publications, 42.28%) is the leading contributor in this field and has a high academic reputation. The most productive and co-cited journal on this subject is “Plastic and Reconstructive Surgery” (66 publications, 13.41%, 2200 citations). Cardenas-Camarena (9 publications, 1.83%, 158 citations) was the most published and co-cited author. Research hotspots include the following three topics: experience and technology of buttock augmentation, autologous fat buttock augmentation and its safety, and buttock aesthetics study. There will be more publications in the future, and research trends will focus on silicone implants, safety, satisfaction, and autologous fat grafting.

Conclusion

Buttock augmentation research is rapidly evolving, and this study provides a perspective view of buttock augmentation research in Plastic and Reconstructive Surgery.

Level of Evidence III

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.

Facial Fat Grafting (FFG): Worth the Risk? A Systematic Review of Complications and Critical Appraisal

Introduction: Autologous fat is ideal soft tissue filler. It is easily accessible, biocompatible, cheap, and it provides both volume augmentation and skin quality improvement. Fat grafting has been used since 1893, but it has only gained widespread popularity since the development of modern liposuction by Colemann and Illouz in the 1980s. Every year more than half a million facial fat grafting procedures are carried out worldwide and the trend is rapidly increasing. Overall, general complications associated with facial fat grafting are assumed to be around 2%. Is that true? Material and Methods: Until July 2021, a systematic search of the literature was performed interrogating PubMed search engines. The following algorithm was used for the research: (fat graft OR lipofilling) AND face AND complications. Exclusion criteria applied hierarchically were review articles, not reporting recipient site complications; not in English and paediatric population. Abstracts were manually screened by LS, GS, JM and PDS separately and subsequently matched for accuracy. Pertinent full-text articles were retrieved and analysed and data were extracted from the database. The flow chart of article selection is described following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Results: In total, 462 papers were identified by PubMed search. A total of 359 were excluded: 38 papers were not in English, 41 were review articles, 279 articles did not report recipient site complications and 1 was not on human subjects. Average complication rate ranged from 1.5% to 81.4%. A total of 298 adverse events were identified: 40 (13.4%) intravascular injections, 13 (4.3%) asymmetry, 57 (19.1%) irregularities, 22 (7.4%) graft hypertrophy, 21 (7%) fat necrosis, 73 (24.5%) prolonged oedema, 1 (0.3%) infection, 6 (2%) prolonged erythema, 15 (5%) telangiectasia and 50 (16.8%) cases of acne activation. Conclusions: FFG related side effects could be resumed in three categories: severe, moderate, and minor. Severe (13.4%) side effects such as intravascular injection or migration require neurological or neurosurgical management and often lead to permanent disability or death. Moderate (38.3%) side effects such as fat hypertrophy, necrosis, cyst formation, irregularities and asymmetries require a retouch operation. Minor (48.3%) side effects such as prolonged oedema or erythema require no surgical management. Despite the fact that the overall general complication rate of facial fat grafting is assumed to be around 2%, the real complication rate of facial fat grafting is unknown due to a lack of reporting and the absence of consensus on side effect definition and identification. More RCTs are necessary to further determine the real complication rate of this procedure.

Collagen Stimulators in Body Applications: A Review Focused on Poly-L-Lactic Acid (PLLA)

The number of aesthetic procedures performed worldwide continues to grow together with an increase in the population seeking the restoration or preservation of a youthful appearance. Requests for non-surgical body rejuvenation are increasing. Patients are looking for safe and effective minimally invasive aesthetic procedures. Soft-tissue dermal fillers can meet these expectations. Based on the beneficial outcomes of these treatments in many facial areas, a new trend is developing to target body areas. Different dermal fillers are available and include collagen stimulators initially developed to restore facial volume. Furthermore, they are associated with long-lasting efficiency, a high level of patient satisfaction and a good safety profile, with mainly minor adverse events reported. In appropriate conditions of use, they are now used for body rejuvenation in clinical practice. Their use is expanding and allows addressing various issues including volume loss, skin laxity, cellulite, striae distensae and wrinkles. This review focuses on poly-L-lactic acid (PLLA), used in the first collagen stimulator and one of the most investigated in facial and in off-facial body applications. The available published data, although still limited, are presented by body area, neck and chest, buttocks, abdomen, upper arms, thighs, knees, and hands. Key features of the concerned zones and the main clinical signs affecting the body part as well as the injection modalities are provided along with the aesthetic results. This represents the state of the art on which to base further developments necessary for optimal and safe outcomes of treatment with the PLLA-based collagen stimulators and others in this class for body rejuvenation.

Management of a Large Quantity of Permanent Gluteal Copolyamide Fillers (Aqualift/Activegel): Literature Review and Algorithm

Buttock augmentation is a commonly performed aesthetic surgery. Several methods have been described, but only the use of implants or autologous fat is consensually deemed safe and effective. Synthetic fillers in gluteal augmentation have been described despite potential severe long-term complications, both medical and aesthetic. The aim of this study is to report a series of 2 consecutive cases who underwent buttock and hip augmentation with large volumes of permanent copolyamide filler requiring surgical removal due to significant complications. Based on these cases and a review of recent literature, a management algorithm is proposed. The authors conducted a retrospective chart review of 2 consecutive cases of failed copolyamide filler augmentations in the gluteal and inguinal regions. The authors conducted a literature overview using PubMed (National Institutes of Health, Bethesda, MD) and Google Scholar (Google, Mountain View, CA) to include all articles concerning the removal of large quantities of permanent copolyamide fillers. Based on the physical properties of copolyamide, resection of the filler was performed by percutaneous aspiration with liposuction cannulas, with varying infiltration protocols. Both cases showed successful removal of major parts of the filler; however, residual material tended toward migration, requiring a secondary intervention. Hydrated low-pressure aspiration can manage nonintegrated gluteal copolyamide filler but will achieve only partial resection. Literature shows that radical excision is possible, however, with major drawbacks in function and aesthetics. Moreover, in acute inflammation and infection, an open approach should be preferred.

Level of Evidence 5

The Safety of Fat Grafting: An Institutional Retrospective Review

BACKGROUND

Autologous fat grafting is a popular technique for volume replacement in the breast and face. The efficacy, safety, and complication rate of this technique at the division of plastic surgery at the University of Alabama at Birmingham will be described in this review.

METHODS

An institutional review board-approved retrospective review of patients undergoing fat grafting procedures from January 2015 to July 2018 was performed. Records were reviewed for fat graft recipient site, donor site, amount grafted, and complications. Continuous variables were compared using either a t test or one-way analysis of variance test. Categorical data were compared using χ2 test. A P value of 0.05 or less was considered statistically significant for all comparisons.

RESULTS

A total of 396 patients who underwent fat grafting procedures of the face and body from January 2015 through July 2018 met inclusion criteria. Average amount of fat grafted for all grafts was 124.4 +/- 6.74 grams. Two hundred fifty of the grafts (62.7%) involved the bilateral breasts with an average of 140.6 +/- 93.97 g used, 70 per side. Of the 396 patients, 110 (27.8%) experienced complications. Forty three of the complications (10.9%) were considered to be major, which included hematomas/seromas, fat necrosis, dermatitis/cellulitis, and infection. No statistical differences were seen among recipient site complication rate. Types of minor complications were statistically significant per recipient sites with bilateral breasts more likely to experience asymmetry than the other recipient sites (20% for bilateral breasts vs 16% overall, P < 0.05). Fifty nine of the 110 patients (53.6%) had the complications reported to be resolved.

CONCLUSIONS

Fat grafting is a reliable method for volumization of the breasts and face. Minor complications were not infrequent in this case series; however, no life-threatening complications were observed. Continued work needs to be done to use fat grafting beyond traditional measures.

Gluteal Region Reshaping of Massive Weight Loss Patients—A Decision-Making Strategy

Background  Massive weight loss (MWL) is a very common presentation that you may face as a plastic surgeon. Each patient has his own individual criteria, so, you should work according to a well-organized plan, especially when such cases have concerns about their gluteal area contour that were neglected before by many surgeons. A decision-making strategy was used to give a personalized treatment for targeting gluteal region reshaping of MWL patients.

Methods  This study considered all patients with MWL subjected to buttock reshaping. There was no randomization in treatment; there was a case-by-case assessment. We analyzed the features of the buttocks, the type of surgery performed, the outcomes, and the complications.

Results  Fifty two patients were included (41 females and 11 males), ages ranged between 21 and 66 years. Demographic data, preoperative body mass index (BMI), duration of surgery, type of surgery, and postoperative complications were collected. Statistically significant improvements were observed in gluteal ptosis and patient satisfaction grades.

Conclusion  Aesthetic improvement of the buttocks involves either augmentation or contouring that may be obtained by liposculpture, surgical lifting, or combination. Patients with MWL have high expectations and are often treated with multiple procedures. Thus, an easy strategic approach personalized on each patient to treat multiple adjacent areas in one operation is necessary. Adipose tissue distribution, gluteal skin status, and BMI were the main factors that can forcefully affect our plan to guarantee reduction of unpleasant results and complications and improve patient satisfaction.

Distant migration of gluteal augmentation fat presenting as a soft tissue knee mass

Gluteal augmentation with autologous fat grafting is an increasingly popular procedure. While complication rates are low, the clinical and imaging evaluation of the various complications can be challenging. We report a case of distal migration of a failed gluteal fat graft in a young female patient presenting as a soft tissue mass in the knee, mimicking a soft tissue sarcoma. Surgical resection of the migrated fat graft confirmed the diagnosis. The diagnosis was challenging as the patient was initially reluctant to disclose her surgical history due to perceived negative social stigmas related to cosmetic contouring procedures. This case highlights the imaging findings of a rare complication following autologous fat grafting for gluteal augmentation and the importance of obtaining a thorough medical history.

Buttocks Volume Augmentation with Submuscular Implants: 100 Cases Series

BACKGROUND

Permanent aesthetic augmentation of the gluteal region can be achieved with fat graft and/or implants. Implant-based augmentations have been proposed since the late 1960s. Buttock implants can be placed in four different planes according to distinct surgical techniques: subcutaneous, subfascial, intramuscular, and submuscular.

METHODS

In this retrospective analysis, a 100 case series of patients seeking volume and shape amelioration of the gluteal region were studied. All of them had primary gluteoplasty performed with a submuscular implant placement by first author (F.P.) with a new technique, as described in the article.

RESULTS

Data on surgery time, implant volume selection, and postoperative complications were collected. The most frequent complications were delayed healing of the incision and implant flipping.

CONCLUSIONS

Submuscular implant positioning is a safe and reliable technique for buttock augmentation with implants. Whatever the implant volume, submuscular gluteal augmentation carries the benefit of perfectly covering, protecting, and hiding the implant, making it almost impalpable and invisible.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Fragmented Fat Transfer for Massive Weight Loss Gluteal Contouring

SUMMARY

A recently introduced novel fragmentation technique has made it possible to convert fat tissue from apronectomy into large-scale viable lipograft, providing a glimpse of an alternative to traditional liposuction and its harvesting limitations. The purpose of this study was to assess the initial clinical evidence on fragmented fat transfer to restore volume and enhance deflated gluteal contours in a sample of massive weight loss patients. The authors retrospectively reviewed medical records of 20 women who received autologous buttock fat grafts that were harvested and fragmented following belt lipectomies and/or fleur-de-lis abdominoplasties. The average total volume subcutaneously grafted into the buttocks was 720 ml (bilateral), ranging from 500 ml to 960 ml. No local gluteal complications, such as seroma, infection, fat necrosis, or subcutaneous nodulations, were reported. Photographic observation of postoperative results over a 6- to 14-month follow-up period showed clear enhancement of body contouring in all patients, especially in those in whom fat transfer was combined with circumferential lifts. Fat fragmentation has proved useful and effective in providing great amounts of viable fat graft in a safe, simple, and reproducible technique without noticeable complications. The method eliminates the organic response to the insult of liposuction while using the entirety of formerly discarded apronectomy tissue to provide fine, transferable, autologous fat without increasing operative time. Although preliminary, the authors' clinical findings with this new technique support further studies of fragmented fat as an alternative to liposuction in gluteal fat grafting. Additional potential applications, including in wound healing and regenerative medicine, are worth exploring. .

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Complications of Nonpermanent Facial Fillers: A Systematic Review

Background:

A variety of complications after injection of nonpermanent fillers for facial rejuvenation have been reported so far. However, to date, the overall complication rate is still a matter of debate. The aim of this study was to perform a systematic review of literature to assess the type and severity of associated complications following injections in different anatomical regions of the face.

Methods:

The entire PubMed/Medline database was screened to identify case reports and clinical studies describing complications that have occurred after injection of nonpermanent fillers in the face. These complications have been reviewed and analyzed according to their occurrence in different anatomical regions of the face.

Results:

Forty-six articles including a total of 164 patients reported on a total of 436 complications during the time period between January 2003 and February 2020. The majority of the complications were reported after injections to the nose and the nasolabial fold (n = 230), the forehead and the eyebrows (n = 53), and the glabellar region (n = 36). Out of 436 complications, 163 have been classified as severe or permanent including skin necrosis (n = 46), loss of vision (n = 35), or encephalitis (n = 1), whereas 273 complications were classified as mild or transient, such as local edema (n = 74), skin erythema (n = 69), and filler migration (n = 2). The most severe complications were observed in treatments of nose, glabella, and forehead.

Conclusions:

Nonpermanent facial fillers are associated with rare but potentially severe complications. Severity and impact of complications depend on the anatomical region of the face and eventually require profound knowledge of facial anatomy.

Gluteal Augmentation with Fat Grafting: Literature Review

BACKGROUND

The buttock is the second sex feature of the human body, and the graceful buttock curve gives people confidence. Although the safety of gluteal augmentation with autologous fat grafting is still controversial, the proportion of operations is increasing year by year.

PURPOSE

To provid a comprehensive and detailed review of the literature on gluteal augmentation with fat grafting.

METHODS

A comprehensive review of the published literature through September of 2020 was performed in PubMed database, with the search terms "gluteal augmentation," "buttock augmentation," "Brazilian buttock lift," "fat grafting," "fat transfer," "gluteal AND aesthetic," "gluteal AND anatomy."

RESULTS

A total of 64 articles were included. On the basis of the information obtained, surgical recommendations are proposed to achieve buttocks as close as possible to aesthetic standard and improve surgical safety.

CONCLUSION

With a good grasp of the anatomical structure of the buttocks, complications can be reduced. At the same time, based on the theoretical basis of buttock aesthetics, better postoperative results can be obtained.

LEVEL OF EVIDENCE III

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 .

Safety Considerations of Fat Grafting in Buttock Augmentation

Autologous fat grafting for buttock augmentation is one of the fastest growing plastic surgery procedures, but has also received significant publicity for the relatively high mortality rate secondary to fat emboli. The literature has grown exponentially in the past 5 years on this subject, helping to clarify our knowledge and providing recommendations to minimize risks, including avoiding intramuscular injections, placing the patient in the jackknife position, and utilizing larger-bore cannulas. Since the application of these recommendations, the rate of pulmonary fat embolism has decreased from 0.097% to 0.04%, with a current mortality of 1 in 14,921, making it statistically safer than abdominoplasty. Despite the evolution in our knowledge, techniques, and outcomes, it remains of utmost importance to properly select and educate patients about the safety of fat grafting for buttock augmentation. Level of Evidence: 4.

Assessing Clinical Outcomes in Autologous Fat Grafting: A Current Literature Review

Autologous fat grafting, first described in the 1890s, has since undergone many modifications to optimize safety and efficacy. These changes have resulted in the technique that we now consider standard of care, one that is applied to reconstruction and cosmetic enhancement of the breast and the face both independently and in conjunction with surgical treatment. There is a growing body of evidence that this application has positive outcomes for patient satisfaction, surgeon satisfaction, and overall aesthetic appearance. This article summarizes the body of literature regarding these outcomes, reviews complications of fat grafting in the face and breast, and discusses controversies including radiologic imaging changes and longevity of grafting. Level of Evidence: 4.

Submuscular Gluteal Augmentation and Lipoplasty for Buttock Beautification

The number of gluteal augmentation procedures with implants has increased in the last years. However, due to high complication rates related to the placement of the implants, surgeons have started to avoid using implants. The objective of the present study was to describe the details of the submuscular gluteal augmentation technique together with lipoplasty techniques and to increase the prevalence of its use.

METHODS

All methods are complementary to each other rather than being superior to each other. That is why the author has used submuscular gluteal augmentation with implant technique and lipoplasty together during the surgeries. The complication rates are lower with this easy-to-learn technique described in this article. Eighty-six patients aged 20-46 underwent surgery. The follow-up period was 6-24 months. The implants used consisted of round cohesive silicone, with the most commonly used size being 330 cm3. The average volume of infiltrated fat was 514 cm3.

RESULTS

The sciatic nerve is well protected by the surrounding anatomical structures, indicating that submuscular technique can be used safely. Partial wound dehiscence was noted in 1 patient, implant malposition in 5 patients, and seroma in 2 patients. All patients reported that they are highly satisfied with the results of the procedure.

CONCLUSIONS

The author advocates that the combination of lipoplasty with the submuscular technique described is safe, easy to perform, has a short operative time and low complication rates. It can be preferred in buttock beautification as a simple and safe technique.

Current perceptions of 'Brazilian butt lift' (BBL) surgery in the UK: A BAAPS-led survey of BAAPS members

BACKGROUND

The BAAPS advice against Brazilian butt lift (BBL) surgery in the UK was set in October 2018. A Delphi study conducted by BAAPS highlighted the importance of defining current practice and perceptions amongst UK surgeons, as this is currently unknown.

OBJECTIVES

To evaluate BAAPS members' current practice and perceptions around BBL surgery to ensure patient safety and propose better recommendations.

METHODS

A BAAPS-commissioned survey was emailed to all BAAPS members through an on-line link. The survey collected quantitative and qualitative information in several domains.

RESULTS

This survey received a 44% response rate. Of 102 respondents, 32 surgeons undertook BBL surgery before the BAAPS advice to halt it. There was a wide variation in actual fat volumes injected, and in perceptions of what constituted a small or large volume. Virtually all respondents (96.9%) performed only subcutaneous fat injections. There were differences in fat harvest techniques. The majority (66.7%) felt that BAAPS should maintain its recommendation against undertaking BBL surgery until further data became available. Nearly a quarter of 102 respondents (20.6%) had been treated for BBL complications, the majority as a result of surgical tourism.

CONCLUSIONS

The survey provides member-reported perception and experience with regard to BBL surgery in the UK. The demand for BBL surgery and its provision should be reassessed in the UK. This information will be analysed with further national and international data to better define and shape the scope of the safety of BBL surgery in the UK. BAAPS will use such data towards the production of future guidance and support for surgeons and patients.

Objectifying the Risk of Vascular Complications in Gluteal Augmentation With Fat Grafting: A Latex Casted Cadaveric Study

BACKGROUND

Fat transfer is the most popular means of gluteal augmentation. However, this procedure may be complicated by pulmonary fat embolisms (PFEs). Of 135 PFEs out of 198,857 cases reported by the Aesthetic Surgery Education and Research Foundation task force, 32 were fatal, contributing to the mortality risk of this procedure being as high as 1:2351.

OBJECTIVES

The aim of this study was to generate an anatomic map of the 3-dimensional location and variability in size of the gluteal region vessels.

METHODS

Twenty cadaveric gluteal regions were dissected. The aorta, venae cavae, popliteal, and saphenous veins were cannulated and injected with colored latex. Dissection was performed subcutaneously, in the gluteus maximus (GM), and submuscularly to evaluate the number and vascular distribution of all the vessels. Vessels were mapped on an XYZ axis.

RESULTS

The subcutaneous plane, containing 25 vessels on average, had the smallest vessel diameters (artery, 0.9 [0.3] mm; vein, 1.05 [0.22] mm). The GM vein diameter was 1.3 [0.3] mm. Branches of the inferior gluteal vessels had arterial and venous calibers of 2.2 [0.04] mm and 3.5 [0.99] mm, respectively. Superior gluteal artery and vein branches were 1.8 [0.2] mm and 3.85 [1.9] mm in diameter, respectively. Superior and inferior gluteal vein diameters were 7.61 [2.24] mm and 13.65 [6.55] mm, respectively.

CONCLUSIONS

The deeper and more medial planes of the gluteal region house larger, more prominent vessels. This research objectifies and is consistent with recommendations made by various recent task force reports to limit fat transfer to the subcutaneous plane.

Soft Tissue Masses in Patients Who Underwent Cosmetic Fat Transfer Procedures for Gluteal Augmentation: A Report of 3 Cases

CASES

Three patients were referred to our musculoskeletal oncology service after undergoing autologous fat grafting procedures. Two masses were suspected to be "soft tissue sarcomas," and one was due to a mass of unknown origin. These findings have not been reported in the orthopedic literature and may generate potential referrals for orthopedic oncologists.

CONCLUSIONS

Awareness of potential complications of procedures from other surgical specialties and their radiographic characteristics is of utmost importance. The clinical and radiographic findings that could assist in distinguishing a mass related to an autologous fat transfer procedure from a soft tissue sarcoma are described.

Replacement of gluteal implants by polymethyl methacrylate filler: case report

Silicone prostheses are an alternative to shape the buttock but further studies are still needed to support the effectiveness of its use. A patient sought medical attention for being dissatisfied with the glutaeal silicone prostheses inserted using subcutaneous technique four years before. The treatment adopted was prosthesis removal surgery, and subsequent filling with PMMA.

The Role of Fat Grafting in Buttock Augmentation

Autologous fat grafting is now considered the gold standard for buttock augmentation. Although a variety of techniques are currently being used by surgeons around the world, methods of fat grafting to the buttocks remain unsystematized, poorly understood, and controversial in terms of their safety and efficacy. Nonetheless, buttock augmentation by fat grafting has a satisfaction rate of 97.1%, and its mean complication rate has been estimated to be around 7 to 10%, with serious complications occurring in less than 1% of cases. Fat emboli are one such serious complication, with several reports in the literature discussing morbidity and mortality, specifically with intramuscular injection. With the increasing popularity of fat grafting for buttock augmentation, it is more important than ever to continue researching and learning to safeguard the satisfaction and safety of our patients.

Autogenous Fat Grafting to the Breast and Gluteal Regions: Safety Profile Including Risks and Complications

Given the widespread utility and therapeutic potential of autogenous fat grafting, plastic surgeons should be familiar with its safety profile and associated adverse events. This article provides a critical review of the literature and delineates risk factors associated with various complications when grafting to the breast and gluteal regions. The majority of adverse events are related to fat necrosis and require minimal diagnostic or therapeutic intervention. Larger graft volumes, as in cosmetic augmentation, are associated with higher incidences of fatty necrosis. The oncologic safety of fat grafting is supported by multiple clinical studies with thousands of breast cancer patients, albeit predominantly retrospective in nature. Although less frequent, serious complications include fat emboli during gluteal augmentation. Identification of associated risk factors and implementation of proper surgical techniques may minimize the occurrence of life-threatening complications.

Surgical Calf Augmentation Techniques: Personal Experience, Literature Review and Analysis of Complications

BACKGROUND

More attention is paid to calf appearance, both in males and females, and several surgical techniques are available. Different studies have been published over time for calf augmentation, but, to the best of our knowledge, no comprehensive literature review and complications analysis have been published.

OBJECTIVES

The aim of the study is to analyse the overall complication rate of calf augmentation surgical procedures and complication rates associated with the investigated techniques, namely subfascial implant placement, submuscular implant placement and fat grafting or lipofilling. Demographic analysis, including age and gender, is also performed.

MATERIALS AND METHODS

A literature review on the PubMed database was performed for clinical studies regarding calf augmentation surgical procedures. The authors selected and analysed 26 articles among the actual literature on this field and reported personal experience in calf augmentation surgery.

RESULTS

Twenty-six studies, published from 1993 to 2018, were included in the study for a total amount of 1498 patients, with a total of 2629 calves treated. Three different surgical techniques have been reviewed, excluding medical procedures: subfascial implant augmentation (n = 1929), submuscular implant augmentation (n = 435) and fat grafting (n = 265). The overall complication rate was 4.4883%. Calf augmentation with subfascial implants presented a total complication rate of 5.702%. The submuscular implant placement complication rate was 0.92%. Fat grafting presented a global complication rate of 1.509%.

CONCLUSIONS

Calf augmentation, with all reviewed surgical techniques, has a low rate of complications compared to other body contouring procedures, but a high rate of satisfaction among patients. Fat grafting has the lowest rate of complications, but multiple sessions are required. Specific complications of implants, such as capsular contracture, malposition or rupture, are less common compared to the use of implants for other cosmetic purposes. Procedures should always be performed by experienced plastic surgeons.

LEVEL OF EVIDENCE IV

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 .

Gluteal Augmentation with Polymethyl Methacrylate: A 10-year Cohort Study

Supplemental Digital Content is available in the text.

Background:

Many techniques for buttocks augmentation have been developed and published, for a more natural, satisfactory, and safe result for the patient. It has been a challenge to find a technique that presented not only volume gain but also gluteal remodeling.

Methods:

A total of 1,681 patients who underwent gluteal augmentation with Polymethyl methacrylate (PMMA) between 2009 and 2018 were selected for this retrospective cohort study. Data collected included demographics, procedures data, and postoperative outcomes. Side effects were calculated and compared using the Student’s t test.

Results:

A total of 1,681 patients (1,583 women and 98 men) who underwent 2,770 gluteal fillings had their cases retrospectively analyzed. They were injected with 540,751.00 mL of PMMA injected. The patients’ mean age was 39 years, and the mean volume injected in each section was 237 mL during the first procedure and 147 mL during the second procedure. The authors observed 52 cases presenting side effects, representing a rate of 1.88% of 2,770 procedures carried out. The statistically significant (P = 0.02) presence of side effects was detected in relation to the total filling volume.

Conclusions:

This study has demonstrated that gluteal augmentation with PMMA is one of the best options for this type of procedure. In addition, the findings suggest that the guidelines concerning gluteal augmentation must include PMMA filler as an option because PMMA proved to cause few side effects, as demonstrated by this patient cohort.

Complications of Cosmetic Surgery Abroad - Cost Analysis and Patient Perception

Supplemental Digital Content is available in the text.

Background:

Cosmetic surgery tourism is rapidly becoming more prevalent in the United Kingdom. We aim to identify the motivational factors underlying patients’ decisions to go abroad for their treatment and gather information about the ensuing complications.

Methods:

A retrospective review (January 2013–August 2017) was conducted of patients seen at a single major trauma center for complications from cosmetic surgery performed overseas. Cost analysis was performed based on national tariffs. Complications were grouped based on Clavien-Dindo classification and the Clinical Commissioning Group cost. A telephone survey was conducted to evaluate reasons for travel, details of complications, and impression of healthcare at home and abroad.

Results:

A total of 20 patients (one male, 19 females) with a mean age 36 years (23–59 years) were included. Lower cost was the most popular reason for travel, followed by lack of expertise and friend’s recommendation. Abdominoplasty (n = 9) had the highest number of complications followed by gluteal augmentation (n = 7). All major complications were due to gluteal augmentation (n = 4). The cost was for minor (n = 8, £3,448), intermediate (n = 8, £18,271), and major (n = 4, £42,083.59) complications.

Conclusions:

We raise serious concerns about the lack of regulation in cosmetic tourism and the absence of patient follow-up abroad. A particular concern was all gluteal augmentation cases had major complications. An international consensus to regulate surgical practice abroad is crucial to protect patients’ interests and promote safe cosmetic surgery.

Gluteal Augmentation With Fat: Retrospective Safety Study and Literature Review

BACKGROUND

Use of gluteal augmentation with fat increased by 3267% from 2002 to 2015, and the rate of death is highest compared with other aesthetic procedures: 1 in 3448 patients dies, compared with 1 in 55,000.

OBJECTIVES

To retrospectively investigate patients who underwent this procedure at Oslo Plastic Surgery Clinic, to review international data to determine factors causing mortality, and to provide guidelines for safety.

METHODS

Patient data were searched for reason for the procedure, assessment of patients, techniques performed, and safety measures used. In 60 cases, a vibration machine was used for fat harvesting. Review of the international literature, with special emphasis on fatal complications, was performed on Medline, Google Scholar, and PubMed.

RESULTS

Mean patient age was 32 years. Mean amount of grafted fat was 422 mL (range, 210-850 mL). Sedation, local and tumescent anesthesia were used in all patients, with mobilization directly after surgery. Mean operation time was 89 minutes. Eighteen patients required a second surgery. Minor complications occurred in 8 patients. Average follow-up was 8 months. Ninety percent of patients were satisfied. Review of international literature showed that the main reason for death in 2015 was fat lung embolism related to muscular and submuscular grafting.

CONCLUSIONS

Gluteal augmentation with fat is one of the most popular procedures, with an internationally high mortality rate. Patient safety is a priority, and preventive measures should improve safety because appropriate patient selection, avoiding muscular and submuscular grafting, avoiding infragluteal incision, moderate grafted volume, and direct postoperative mobilization are essential.

LEVEL OF EVIDENCE: 4

Safe Gluteal Fat Graft Avoiding a Vascular or Nervous Injury: An Anatomical Study in Cadavers

Background

Fat grafting for gluteal augmentation is one of the most popular aesthetic surgery procedures. It has an associated mortality to fat embolism of 0.2%.

Objectives

The authors of this study sought to describe which technique for synthetic graft application was least likely to cause a fat embolism.

Methods

Ten fresh bodies were obtained and 4 groups arranged with 5 buttocks each randomly assigned. Group 1 was infiltrated through the upper medial intergluteal sulcus (upper medial intergluteal sulcus) with an angulation of -30°, -10°, and 0°. Group 2 was infiltrated through the middle lower gluteal sulcus with an angulation of -30°, 0°, and +15°. Group 3 was infiltrated through a peritrochanteric (PT) access at the level of the femur head at 0° and +10° and in the middle of the buttock at the level of the posterior superior iliac crest at -30° toward the trochanter (lateral direction). Group 4 was infiltrated in the same manner as group 1 without -30°. A complication occurred when the graft was in contact with the vascular or nervous bundle, within the gluteus medius muscle, or both.

Results

Group 1 had 3 buttocks with a complication (UMIGS -30°). Group 2 had complications in all the injection techniques. Group 3 had 5 buttocks with a complication (PT at 0°). Group 4 had no complications.

Conclusions

The injection of the fat graft through the UMIGS at 0° and 10° angles, and through the middle of the buttock at the level of posterior superior iliac crest a -30° angle, reaches the surface needed for gluteal augmentation. The group 2 techniques should be avoided because they have a high risk of complication.

Systematic review of outcomes and complications in nonimplant-based mastopexy surgery

BACKGROUND

Mastopexy is one of the most performed cosmetic surgery procedures in the U.S. Numerous studies on mastopexy techniques have been published in the past decades, including case reports, retrospective reviews, and prospective studies. However, to date, no study has investigated the overall complications or satisfaction rates associated with the wide spectrum of techniques.

OBJECTIVES

This review aims to assess the outcomes of the various mastopexy techniques, without the use of implants, thus focusing on associated complications, and to provide a simplified classification system.

METHODS

This systematic review was performed in accordance with the PRISMA guidelines. PubMed database was queried in search of clinical studies describing nonprosthetic mastopexy techniques, which reported the technique, indication, and outcomes.

RESULTS

Thirty-four studies, published from 1980 through 2016, were included and represented 1888 treated patients. Four main surgical technique categories were identified: dermal reshape, glandular reshape, glandular reshape associated with perforator flaps, and glandular reshape with mesh support. Despite varying techniques, mastopexy was generally found to be a reliable esthetic procedure with unsatisfactory breast shape, thus accounting for only 1.3% of the patients. The overall complication rate was 10.4%. The most represented complications were scar-related (3%, including hypertrophic or unesthetic appearance) and nipple-areola-related problems (2.9%; including distortion, asymmetry, and reduction in sensation).

CONCLUSIONS

Mastopexy techniques achieve high patient satisfaction and can be tailored according to patient needs and clinical presentation. Complication rates and morbidity are relatively low. However, a significant number of issues related to scars, asymmetry, and potential ptosis recurrence should be highlighted in the information provided to patients.

Filler Migration and Granuloma Formation After Gluteal Augmentation with Free-silicone Injections

Gluteal augmentation may be performed using a variety of techniques, including implant-based, autologous fat grafting, local flaps, impermanent filler injection, or, as in this case, by way of permanent filler injection with free-silicone. Of these, free-silicone injections carry one of the highest complication rates, specifically regarding migration of the filler material from the native injection site and induction of painful reactive soft tissue changes at the new filler location. A radiologist providing this diagnosis may assist the clinician, who often cannot obtain a history of illicit silicone injection for gluteal augmentation unless the suspicion is raised. Presented here is a case of painful filler migration to the knee with granuloma formation after free-silicone gluteal injection.