Buttock implants: a single-specialist perspective
The gluteal implants They continue to face a significant reputational problem. Much of the circulating data on complications comes from the United States, where surgeons lack access to cohesive gel gluteal implants and where gluteal implant surgery is rarely performed as a true subspecialty. The result is a literature dominated by data obtained with solid elastomer implants, frequently placed by general surgeons with low surgical volumes: a very poor basis for assessing what this surgery can achieve when performed with the right material, the correct technique, and truly specialized expertise.
In our practice, more than 7.000 Brazilian Butt Lift procedures and over 2.000 buttock augmentations with implants This volume, spanning 16 years of specialized gluteal surgery, allows for a detailed analysis of the factors that truly determine results, the recurring complication patterns, and the technical principles that distinguish a problematic surgery from one that is stable in the long term.
Key perspective: Talking about buttock implants without distinguishing between implant type, pocket design, and actual surgical experience leads to erroneous conclusions. The correct question is not whether buttock implants are "good or bad," but how they are used, with what material, and in whose hands.
If you want to contextualize this topic within modern buttock augmentation, you can also consult our page on Brazilian Butt Lift, information about high-precision liposuction and the page of Dr. Alexander Aslani.
The real role of implants today
Buttock implants should not be seen as an outdated technique that has been replaced by fat grafting. Nor should they be considered a universal solution suitable for every patient. In modern buttock surgery, their role is more precise: they are a structural tool to provide stable projection when anatomy and fat availability mean that isolated fat transfer is insufficient.
That is precisely why the value of this surgery depends less on the abstract idea of the implant and much more on the technical details: the type of material implanted, the size chosen, the pocket design, the tissue coverage, the hybrid logic with fat grafting, and the selection of patients.
In the hands of non-experts, many of these factors are oversimplified. In the hands of experts, they are precisely the factors that determine the outcome.
What buttock implants are and what they are not
Buttock implants are silicone medical devices placed within or adjacent to the gluteus maximus muscle to increase projection and enhance the contour of the buttocks. Unlike fat transfer, they offer a Immediate and predictable central projection that does not depend on the survival biology of the graft.
But here's a very important point: They are not a substitute for fat transferThey are complementary. In our practice, implants are almost never used in isolation. The modern standard is the hybrid augmentationImplants for structural projection and fat transfer to refine the contour, sculpt the hips, smooth transitions, and camouflage any potential ridges. You can see how this approach works on our page. Supercharged BBL hybrid.
Correct implant reading: The implant provides structure. Fat provides three-dimensional naturalness. The right combination of both offers results that neither technique can achieve on its own with the same quality.
Hybrid augmentation as the current standard
The rationale for combining implants with fat grafting is both aesthetic and mechanical. When fat provides peripheral volume and refines the contour, smaller implants can be used. This reduces mechanical stress on the pocket and decreases the risk of complications related to tension, displacement, or tissue overload.
Furthermore, fat transfer allows for the treatment of areas where implants alone are insufficient: lateral hips, contour transitions, edge camouflage, and overall silhouette smoothing. This combination enables a much more sophisticated three-dimensional sculpting than that achieved with implants alone or fat transfer alone.
In our technique, fat grafting is performed with Expansion Vibration Lipofilling (EVL)This method of obtaining and processing fat improves graft viability and reduces surgical time compared to older centrifugation-based techniques. For over 16 years, this hybrid approach has been a constant in our practice and a key to our evolution in gluteal surgery. In the context of the body feminizationThis combined approach is especially valuable.
Supplementary video on gluteal projection, hybrid logic and the structural role of implants within modern gluteal augmentation.
The dual-plane pocket: the most important technical variable
The depth of the implant pocket is the most influential technical variable in gluteal implant surgery. A deeper pocket provides better soft tissue coverage and reduces the complication rate. However, excessive depth can dangerously bring the implant close to the sciatic nerve. The need to navigate this anatomical limitation led to the development of the dual-plane technique.
In this design, the upper pole of the pocket sits beneath the gluteus maximus muscle for coverage, while the lower portion is positioned intramuscularly. This configuration provides excellent soft tissue protection, better distributes mechanical load, and maintains a safe anatomical distance from the sciatic nerve.
The anatomical basis of this technique was demonstrated through cadaveric dissection and published in Plastic and Reconstructive SurgerySubsequent clinical data obtained with cohesive gel implants placed using this technique, in a cohort of approximately 500 patients, confirmed a complication profile clearly lower than that described with solid implants or with conventional intramuscular placement.
Fundamental technical principle: The cost is not a minor detail. It is the variable that most influences coverage, anatomical safety, implant stability, and long-term outcome quality.
Request a specialist evaluation for gluteal surgery
Buttock implants shouldn't be chosen based on preference or trends, but rather on anatomy, available tissue, the actual need for projection, and long-term stability. A specialist evaluation will determine whether the best approach for you is a buttock lift (BBL), implants, or a hybrid augmentation.
A good indication avoids unnecessary surgeries and improves both the safety and quality of the final result.
Cohesive gel vs. solid elastomer
The type of implant used directly influences the complication rate, yet this variable is almost never clearly explained to the patient. In the United States, regulatory restrictions have led surgeons to work exclusively with solid elastomer implants. These behave very differently in the tissue compared to gluteal implants made of [material not specified in the original text]. cohesive silicone gel available in Europe.
In our clinical experience, encompassing over 2.000 implant procedures, cohesive gel implants are clearly more tissue-friendly, generate less capsular reaction, and are better biomechanically tolerated than their solid counterparts. Therefore, when comparing published complication rates, the first question should always be the same: What type of implant was used?
Much of the alarmist information circulating in general-interest content conflates technical realities that shouldn't be analyzed together. A solid implant placed using a conventional technique by a low-volume surgeon is not the same as a cohesive gel implant placed using a dual-plane technique in a truly specialized practice. If you want to better understand the differences between these options, our guide on Buttock implants: sizes and shapes you can help.
Implant size and complication threshold
Implant size has an almost linear relationship with the risk of mechanical complications. Large implants increase tension within the pocket and raise the likelihood of seroma, tissue thinning, and displacement. Our internal analyses show a very consistent pattern: implants smaller than 300 cc They have much lower complication rates. Beyond that threshold, the risk increases sharply.
This is the main reason why we favor smaller implants combined with larger volumes of fat grafting. The total augmentation is distributed between silicone and fat, achieving significant projection without the mechanical load on the pocket exceeding a safe range.
Practical conclusion: It's not about how big the implant can be, but about how much the pocket can tolerate while maintaining stability, coverage, and a reasonable long-term risk.
How we choose the implant shape
Round implants: the most reliable option
Smooth, round implants are our standard choice for primary augmentation. They are reliable, well-tolerated, and rotation-proof—a key advantage in an anatomical region as dynamic as the buttocks. If a round implant rotates, it does not cause visible deformity. Although the central projection is somewhat less than that of biconvex designs, this limitation is compensated for with fat grafting.
Anatomical implants: too high a risk of rotation
Oval or anatomical implants theoretically allow for more controlled shaping of the lower pole. In practice, however, the risk of rotation is significant enough to outweigh this advantage. Therefore, we rarely use them for primary augmentation.
High-projection biconvex implants: only in secondary cases
Biconvex implants offer excellent central projection, but they start at around 370 cc, a size too large for most primary cases. Furthermore, their high cohesiveness increases tissue trauma during insertion. Therefore, we reserve them for secondary surgeries, where the gluteal muscle has already been expanded by a previous procedure.
Supplementary video on dual-plane pocket, structural projection and gluteal implant selection criteria.
Indications: Who benefits most
The primary indication is a flat gluteal anatomy combined with insufficient donor fatWhen the required projection exceeds what fat transfer can reliably provide, an implant is the correct structural solution. You can see representative cases in our gallery. before and after BBL.
A second very clear indication is the Body feminization surgery in transgender patientswhere a strong gluteal projection can play a central structural role in the overall feminization of the silhouette. Our hybrid protocols and their results in this context have also been scientifically published. You can learn more about this on our page of MTF body feminization with Supercharged BBL and implants.
There's an essential distinction here: some patients appear to have flat buttocks when in reality they have prominent fat in their lower back and posterior waist. In these cases, a good liposculpture Fat transfer can resolve the problem without implants. Accurate preoperative assessment is what separates patients who truly need implants from those who only appear to need them.
Complications: what the real data says
The most frequent complication after buttock implant surgery is seromaThat is, the accumulation of fluid around the implant pocket. In our current cohort, the prevalence is approximately 6 to 7 percent, and 80 to 90 percent of these cases resolve without the need for reintervention. Secondary seroma infection occurs in about 1,5 percent of cases.
Capsular contracture, so common in breast implants, is exceptionally rare in gluteal implants. The exact reason is not fully understood, but the highly vascularized muscular environment and constant dynamic loading of the gluteal region likely play a role.
Other potential complications include implant displacement, rotation, and, in very rare cases, sciatic nerve irritation. With modern dual-plane technique and cohesive gel implants, these problems are uncommon in skilled hands.
Important message for interpreting statistics: Complication rates only make sense when compared within the same technical context. Mixing different implants, techniques, and surgeons with completely different volumes distorts reality.
Revision surgery: the staged approach
Because our practice is specialized in a single area, we handle a considerable volume of revision surgeries following gluteal implant procedures performed at other centers. In these cases, the most important principle is... stagingThat is, the phased strategy.
Stage one: Remove the existing implant, repair the surrounding tissue, and restore volume using fat transfer. The original pocket must be carefully closed to allow for proper healing.
stage two: After 6 to 12 months of tissue stabilization, new implants are placed in a properly designed dual-plane pocket if further projection is desired. Some patients are satisfied after the first stage if the fat grafting provides sufficient enhancement.
What we strongly advise against is immediate pocket conversion during the same removal surgery. In our experience, attempting to change the implant plane during the same surgical procedure raises the complication rate to over 30 percent. The staged approach is consistently safer.
Supplementary video on buttock implant revision, risk of immediate pocket conversion, and advantages of the staged approach.
FAQ
Are buttock implants safer today than they were ten years ago?
Yes, very clearly. The introduction of cohesive gel implants in Europe, the development of the dual-plane pocket, the consistent use of hybrid augmentation, and improved patient selection have significantly reduced complications. Another crucial factor is the surgeon's surgical volume.
How do I know if I need implants or a BBL?
The decision is based on anatomy, not preference. Patients with sufficient donor fat and natural contour goals typically benefit most from a BBL. Patients with little fat, very flat anatomy, or projection needs that exceed what fat can provide are candidates for implants. Many patients benefit from both within a hybrid strategy.
What is dual-plane technique and why does it matter?
The dual-plane technique places the upper pole of the implant under the muscle for coverage and the lower pole intramuscularly. This distributes the mechanical load in two planes, improves the definition of the lower pole, and maintains a safe distance from the sciatic nerve.
Can buttock implants be removed if I change my mind?
Yes. Implants can be removed, replaced, or repositioned. We generally recommend a staged approach rather than immediate replacement to reduce complications. Additionally, many patients tolerate the results after explantation better than expected when it's combined with fat transfer.
Why are complication rates so different between clinics?
This is primarily due to three variables: the type of implant used, the surgical technique employed, and the surgeon's case volume. High-volume specialized centers consistently achieve better results than general cosmetic surgery practices.
Is implant recovery harder than BBL recovery?
It's different, though not necessarily harder. Patients with implants often experience increased gluteal muscle stiffness during the first week due to the implant's relationship with the muscle. Most experience a clear improvement by the second week, and over 95 percent regain full function within about four weeks.
Clinical summary
Buttock implants, when performed correctly, can achieve complication rates comparable to other established cosmetic procedures. The three principles that most consistently predict good results are:
- hybrid augmentation with fat transfer
- deep but anatomically secure placement using dual-plane pocket
- conservative implant size below 300 cc
Dr. Alexander Aslani is the Medical Director of Cirumed Clinic Marbella, contributing member of ASERF Task Force on Gluteal Fat Grafting Safety He is the inventor of the dual-plane gluteal augmentation technique. His published series of results covers more than 500 patients with cohesive gel implants, one of the largest databases of its kind in current literature.
Highlighted
- Aslani A. Outcome Analysis of Cohesive Gel Implants With Dual-Plane Technique in Primary Buttock Augmentation. Plastic Reconstruction Surgery Globe Open. 2025; 13 (12): e7350. DOI
- Aslani A. Combining Fat and Implants for Gluteal Augmentation. Clin Plast Surg. 2023;50(4). DOI
- Aslani A, Del Vecchio DA. Composite Buttock Augmentation: The Next Frontier in Gluteal Aesthetic Surgery. Plast Reconstr Surg. 2019;144(6):1312-1321. DOI
- Aslani A, del Vecchio DA, Bravo MG, Zholtikov V, Palhazi P. The Dual-Plane Gluteal Augmentation: An Anatomical Demonstration of a New Pocket Design. Plast Reconstr Surg. 2023;151(1):45-50. DOI
- Del Vecchio D, Bravo MG, Mandlik V, Aslani A. Body Feminization Combining Large-Volume Fat Grafting and Gluteal Implants. Plast Reconstr Surg. 2022;149(5):1197-1203. DOI
- Del Vecchio D, Kenkel JM. Practice Advisory on Gluteal Fat Grafting. Aesthet Surg J. 2022;42(9):1019-1029. DOI
- Oranges CM, Tremp M, di Summa PG, Kalbermatten DF. Gluteal Augmentation Techniques: A Comprehensive Literature Review. Aesthet Surg J. 2017;37(5):560-569. DOI
- Mofid MM, Teitelbaum S, Suissa D, et al. Report on Mortality from Gluteal Fat Grafting: Recommendations from the ASERF Task Force. Aesthet Surg J. 2017;37(7):796-806. DOI
- Richter DF, Stoff A. Gluteal Augmentation with Implants. Clin Plast Surg. 2018;45(2):217-227. DOI
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Every patient is different. At Cirumed Clinic Marbella, Dr. Aslani's team will study your case individually to explain which options are safe, realistic, and suitable for your anatomy.
You can send us your goals and some photos via video consultation. We'll guide you through the procedure, recovery, and the most suitable plan for you.
