Can fat grafting be performed together with forehead implant removal?
This article does not diagnose an individual's condition or guarantee a particular treatment outcome. Surgical timing and technique must be determined individually after an in-person examination of the implant and surrounding tissue, the expected contour after removal, and areas requiring fat grafting.
One of the main concerns for people considering forehead implant removal is, "Will my forehead look too sunken after the implant is removed?"
In particular, if an implant has maintained the forehead's height and curve for many years, removal may produce a different contour.
Many people therefore ask whether their own fat can be used to restore lost volume at the time of implant removal.
Forehead implant removal and fat grafting can sometimes be planned together. However, this approach is not suitable for every patient.
The published literature currently provides insufficient direct comparative evidence to establish whether simultaneous implant removal and fat grafting is superior to removing the implant first and grafting fat after recovery.
The surgical plan must therefore follow assessment of adhesions and the capsule around the implant, inflammation or infection, skin and soft-tissue thickness, and the expected contour after removal.
The key question is therefore not simply whether the procedures can be combined, but whether doing so is appropriate for the current tissue condition.
Why might the forehead look sunken after implant removal?
A forehead implant occupies space beneath the skin, creating height and curvature.
Removal eliminates that physical volume, so the forehead may appear flatter or some contour irregularities may become more noticeable.
However, removing an implant does not necessarily cause severe hollowing.
The resulting contour can depend on the implant's size and thickness, location and tissue plane, duration in place, surrounding capsule and adhesions, forehead skin and soft-tissue thickness, and the original forehead shape.
Swelling and tissue changes immediately after removal also make it difficult to judge the final forehead contour at that stage.
Why consider fat grafting together with implant removal?
Autologous fat grafting involves harvesting fat from areas such as the abdomen or thighs, processing it, and transferring it to areas needing volume or contour enhancement.
Facial autologous fat grafting is used to address soft-tissue volume deficits and contour concerns. Systematic reviews also describe its use for volume augmentation in various facial regions.
Following forehead implant removal, the purpose is not to replace the implant's entire space with fat, but to address anticipated volume deficits or contour imbalance to the extent needed.
1. It may supplement volume lost after implant removal
If loss of the height provided by the implant is expected to make the forehead look flat, autologous fat may be considered to supplement volume where needed.
The important point is that this does not mean replacing the removed implant with an equal volume of fat.
A solid implant maintains a defined shape and volume, whereas fat is distributed within tissue and then undergoes partial survival and partial resorption.
Rather than determine the graft volume solely from the original implant size, the treatment areas and volume should be planned around the expected contour and the condition of the skin and soft tissue.
2. It may help address contour irregularities or step-offs after removal
After implant removal, some irregularities or step-offs may become more visible rather than the entire forehead becoming uniformly lower.
In such cases, fat grafting may help create a smoother transition between hollow areas and surrounding tissue, rather than simply restore forehead height.
However, not all transferred fat remains.
Some survives and some is resorbed. Final volume retention varies with tissue condition, the recipient area, harvesting, processing and injection techniques, and the time of assessment.
Studies of facial fat grafting report differing long-term volume retention, making it difficult to apply a single graft-survival rate to every patient.
Is it always better to combine implant removal and fat grafting?
No. This distinction is important when deciding on fat grafting after forehead implant removal.
When simultaneous fat grafting may be considered
If there is no obvious inflammation or infection around the implant and the soft tissue is relatively stable, anticipated volume loss can be assessed to consider simultaneous fat grafting.
However, preoperative assessment cannot predict every situation accurately.
Because the capsule, adhesions, and surrounding tissue are assessed during removal, intraoperative findings may alter the fat-grafting plan.
When removing the implant first may be more appropriate
If inflammation or infection is suspected, surrounding tissue is compromised, or extensive adhesions make the post-removal condition and contour difficult to predict, a staged approach may be considered: remove the implant, allow recovery, and reassess the remaining contour.
In this situation, it may be more appropriate to address implant and tissue problems first, then determine whether grafting is needed based on the hollowing and irregularities that remain after stabilization.
There is insufficient direct comparative evidence to generalize that simultaneous or staged surgery is better for every patient.
Does a capsule around the implant prevent fat grafting?
Not necessarily.
An implant in the body may develop a surrounding fibrous capsule.
The deciding factor is not simply the presence of a capsule, but the condition of that capsule and the surrounding tissue.
The implant location, capsule and adhesions, inflammation or infection, and surrounding soft tissue require comprehensive assessment.
Neither "the entire capsule must always be removed" nor "the capsule must always be left in place" can be applied uniformly to every patient.
The extent of surgery may vary with the implant and surrounding tissue and the findings during removal.
Imaging may provide additional information about implant location or surrounding tissue when needed, but the same examination is not necessarily required for every patient.
More fat is not always better for forehead grafting
People having implants removed may wonder whether a large amount of fat is necessary to prevent hollowing.
The goal, however, is to graft an appropriate amount based on the areas requiring treatment and the tissue condition, rather than maximize volume.
Complications reported after facial autologous fat grafting include fat necrosis, oil cysts, and lipogranulomas.
A systematic review published in 2026 analyzed cases of fat necrosis, oil cysts, and lipogranulomas after facial autologous fat grafting.
Some lesions were found around the eyes following forehead or glabellar fat grafting; use of frozen fat and repeated fat grafting were observed in reported cases.
However, most included studies were case reports or small case series, so they cannot establish precise incidence or an individual patient's risk.
Forehead fat grafting requires particular attention to vascular anatomy
There is an essential consideration in forehead fat grafting.
Serious vascular complications have been reported after facial fat grafting, including arterial embolism when fat enters a blood vessel, with resulting visual or neurological injury.
A systematic review of facial autologous fat-grafting complications published in 2024 analyzed 58 reported complications in 38 patients across 22 articles.
Of these, 32 were classified as severe or permanent, including 11 cases of hemiplegia, 7 of vision loss, and 3 of skin necrosis. Reported complications were concentrated in the forehead and temple regions.
These numbers do not represent the probability of complications among all patients undergoing forehead fat grafting.
Because the study analyzed complications reported in the literature, these data cannot establish the precise complication rate for forehead fat grafting.
A 2023 systematic review of arterial embolism analyzed 61 patients with arterial embolism after facial fat grafting; visual and neurological complications were reported following injections in several facial regions, including the glabella, temples, and forehead.
Forehead fat grafting must therefore not be approached simply as filling a hollow area: the vascular anatomy of the forehead and around the eyes must be considered.
Previous implant surgery may also have altered tissue planes and adhesions, so surgical history and current tissue condition should be evaluated together.
However, sufficient direct comparative studies have not established that vascular complications from fat grafting are more frequent in patients with prior forehead implant surgery than in routine forehead fat grafting.
It would therefore be inappropriate to state that fat grafting is several times riskier because an implant was previously removed from the forehead.
How much volume will remain after fat grafting?
Unlike an implant, a fat graft does not retain all of its initial volume.
Some transferred fat survives after receiving a blood supply from surrounding tissue, while some is resorbed.
The volume immediately after surgery may therefore differ from the stabilized volume later.
Studies of facial fat grafting also report differing long-term volume retention.
This reflects differences in recipient sites, tissue condition, harvesting and processing methods, injection techniques, assessment methods, and follow-up periods.
A single percentage of fat survival therefore cannot be applied to every patient.
These characteristics should also inform planning after implant removal. The retained volume and contour can be assessed after recovery to consider additional correction if needed.
What should be assessed before fat grafting after forehead implant removal?
Simply evaluating how high or flat the forehead currently looks is insufficient.
Implant assessment includes its type, size, position and tissue plane, time since insertion, and any displacement or deformation.
Assessment of surrounding tissue includes the capsule and adhesions, inflammation or infection, skin and soft-tissue condition, existing incisions and scars, and anticipated contour changes after removal.
Fat-grafting planning should also consider where and how much volume is actually needed, previous forehead or brow surgery, and previous fat grafting or filler treatment.
If there is recurrent swelling, pain, warmth, or skin change over the implant, evaluating the implant and surrounding tissue takes priority over planning fat grafting simply to reshape the forehead.
Frequently asked questions
Q. Is fat grafting essential after forehead implant removal?
A. No. If the original forehead contour and soft-tissue volume remain adequate after removal, fat grafting may not be necessary.
The procedures therefore do not always need to be combined. The need for fat grafting should be assessed separately based on the expected contour and actual tissue condition.
Q. Is fat placed directly into the space left by the implant?
A. No. An implant is a solid object with a defined shape and volume, whereas fat is living tissue distributed within recipient tissue and subsequently establishes survival. They create volume differently.
Instead of filling the former implant space with the same volume of fat, the grafting area is planned according to the volume needed and the overall forehead contour after removal.
Q. Does combining implant removal and fat grafting speed up recovery?
A. Not necessarily. Performing both treatments in one operation may offer practical advantages, but recovery varies with the extent of removal, adhesions, fat-harvesting site, and grafting area. Current published evidence does not support a general claim that simultaneous treatment provides faster recovery than staged treatment.
Q. When can fat grafting be performed after forehead implant removal?
A. There is no fixed interval for every patient, but our general recommendation is to wait at least 6 months. Timing must nevertheless be determined after assessing inflammation or infection, the extent of removal, swelling and tissue recovery, and the actual remaining contour.
Q. Can fat grafting reproduce the forehead shape created by an implant?
A. Fat can supplement forehead volume and curvature, but implants and fat grafts have different characteristics.
An implant has a defined shape and volume, while transferred fat undergoes survival and resorption. The same height and shape therefore cannot be guaranteed.
The key after forehead implant removal is not simply what to fill it with
When considering fat grafting after forehead implant removal, the first question is not what should fill the space left by the implant.
First, assess the condition the forehead skin and soft tissue will be in after removal.
If there is no obvious inflammation or infection, the soft tissue is relatively stable, and anticipated volume loss can be evaluated, simultaneous fat grafting may be considered.
If inflammation or infection is suspected, adhesions are extensive, or the final contour is difficult to predict immediately, a staged approach may be considered: remove the implant first, allow recovery, then reassess hollowing and irregularities before planning grafting.
The question "Can removal and fat grafting be combined?" should therefore extend to "Is fat grafting actually needed?" and "If so, is it appropriate now or after the tissue has stabilized?"
Ultimately, the sequence and extent of surgery should be tailored to the patient after evaluating the implant, surrounding tissue, expected post-removal contour, and areas requiring fat grafting.
For questions about combining forehead implant removal and fat grafting, contact 02-545-3700 or "UVOM Plastic Surgery" on KakaoTalk.