Implant vs. Flap Breast Reconstruction After Mastectomy: How Surgeons Decide GALLERY

MSc, MD Ho Cao Vu

Medical practice licence No. 028475/BYT-CCHN, issued by the Ministry of Health of Vietnam on 28 June 2018. Specialist in General Surgery and Plastic & Aesthetic Surgery, with over 15 years of experience in plastic and aesthetic surgery and over 20 years of general surgical experience in benign breast disease, breast cancer, abdominal wall and abdominal surgery at Cho Ray Hospital.

Updated October 2026 — cross-checked against the National Cancer Institute’s fact sheet on breast reconstruction after mastectomy, the Mastectomy Reconstruction Outcomes Consortium study of two-year complications and the MD Anderson Cancer Center patient booklet on reconstruction options.

If you are facing a mastectomy, or have already had one, you will probably be asked whether you want your breast rebuilt and, if so, how. There are two main routes: an implant, or a flap of your own tissue moved from another part of the body. Which suits you depends on your body, your cancer treatment plan, especially whether radiotherapy is likely, and what you want from the result. Choosing not to have reconstruction at all is also a valid decision.

What are the main types of breast reconstruction?

Reconstruction generally falls into two categories, according to the American Society of Plastic Surgeons: implant-based reconstruction and flap reconstruction, which uses your own tissue (also called autologous reconstruction). The two can also be combined.

Implant-based reconstruction is often done in two stages. A temporary tissue expander is placed beneath the skin and filled with saline at regular visits, usually weekly and according to how well you tolerate it, to stretch the skin. The National Cancer Institute (NCI) notes that the chest tissue is usually ready two to six months after the expander is placed, when a second operation exchanges it for the permanent implant. Some women can have the permanent implant placed in a single operation, which is possible when the mastectomy has left enough healthy skin and tissue to cover it. The implant may sit in front of the chest muscle (prepectoral) or partly behind it (subpectoral).

Flap reconstruction moves skin, fat and sometimes muscle from a donor site to the chest. The main donor sites are:

• The abdomen. The deep inferior epigastric perforator (DIEP) flap takes skin and fat but spares the rectus abdominis muscle and its fascia, which lowers the risk of abdominal weakness and hernia. The transverse rectus abdominis myocutaneous (TRAM) flap includes muscle. The abdomen is the most common source of tissue for flap reconstruction, and it leaves a scar running from hip bone to hip bone.
• The back. The latissimus dorsi (LD) flap moves muscle, fat and skin from the upper back and is often combined with an implant to add volume.
• The thigh. The profunda artery perforator (PAP) flap and the transverse upper gracilis (TUG) flap use tissue from the inner or back of the thigh.
• The buttock. The superior and inferior gluteal artery perforator flaps (SGAP and IGAP).

A flap is either pedicled, meaning it stays attached to its own blood supply and is tunnelled under the skin to the chest, or free, meaning it is detached and its blood vessels are reconnected to vessels in the chest under a microscope. NCI notes that pedicled flaps usually involve a shorter operation and hospital stay than free flaps.

When can reconstruction be done: immediately or later?

Reconstruction can start during the same operation as the mastectomy (immediate reconstruction) or months or years afterwards (delayed reconstruction).

MD Anderson’s comparison lists better cosmetic results and possibly fewer surgeries as advantages of immediate reconstruction, with no significant delays in getting other cancer treatments. Its drawback is that problems with the mastectomy skin can be harder to detect. Breastcancer.org adds that the combined operation and recovery are longer.

Delayed reconstruction separates the two decisions. Radiotherapy given before delayed reconstruction does not cause problems at the reconstruction site, because the new breast is not yet there. The trade-offs are an extra operation and the fact that rebuilding a breast can be more difficult once the chest has scarred. Breastcancer.org notes that waiting may reduce the risk of complications, and that many surgeons advise waiting until radiotherapy is finished.

There is a middle path. Some surgeons place a tissue expander at the time of mastectomy to preserve the skin envelope while the need for radiotherapy is still uncertain. In MD Anderson’s description, if radiotherapy is then needed, the expander is deflated during the six to eight weeks of treatment and filled again about two weeks afterwards. The same booklet is clear that not all surgeons will suggest this, because the risk of complications is higher.

How does radiotherapy change the choice?

Radiotherapy to the chest is the factor that most often shifts the balance between an implant and a flap. Radiation can cause wound-healing problems and infections in a reconstructed breast, and it affects implants and flaps differently.

With implants, radiotherapy increases the risk of infection, severe capsular contracture (hardening of the scar tissue around the implant), fluid build-up and a less satisfactory appearance. For this reason MD Anderson notes that implant-only reconstruction with radiation may not be recommended. Practice varies, however: NCI states that immediate reconstruction with an implant is usually still an option for women who will need radiotherapy. Both positions appear in the guidance, and the decision is usually made together with the radiation oncologist.

Flap reconstruction is usually reserved for after radiotherapy, and a flap can bring healthy tissue to replace skin that radiation has damaged. Conversely, an implant may not be an option for someone whose chest has already been irradiated.

The largest prospective comparison comes from the Mastectomy Reconstruction Outcomes Consortium (MROC), which followed women at 11 centres in North America. Among women who had radiotherapy, at least one complication in the reconstructed breast within two years was reported in 38.9% of those with implants and 25.6% of those with flaps. Among women without radiotherapy, the difference between the two methods was not significant (21.8% and 28.3%). On satisfaction with the breasts, scored from 0 to 100, irradiated women with flaps scored 63.5 and those with implants scored 47.7.

A 2025 review for the Japanese Breast Cancer Society guideline, pooling 23 studies, found that radiotherapy after implant reconstruction was linked to more major complications, more reconstruction failure, more capsular contracture and poorer cosmetic outcomes. A companion review asked whether radiation is better delivered to the temporary expander or to the permanent implant, and concluded that the evidence was insufficient to favour either approach.

Radiation also affects tissue around implants placed for cosmetic reasons. We have described a patient treated with lumpectomy and radiotherapy whose implant later ruptured; her implants had been placed for augmentation before her cancer, not for reconstruction, but the case shows how irradiated tissue can tighten around a device. Our article on capsular contracture explains the grading.

Which factors do surgeons weigh?

Breastcancer.org sums up the decision as depending on body type, goals for the cosmetic result, the cancer treatment plan, previous surgery and overall health. In practice, seven questions come up in most consultations.

1. Is radiotherapy planned, or has it already been given?

As set out above, radiotherapy raises the complication rate with implants more than with flaps, and earlier chest radiation can rule an implant out. The American Cancer Society (ACS) puts it simply: if you need radiation, your reconstruction options may be more limited.

2. How much donor tissue is available?

A flap needs enough tissue at the donor site. MD Anderson describes the abdominal flap as suited to people with a body mass index (BMI) below 35 who do not smoke and have not had major abdominal surgery, with caesarean section and laparoscopy as exceptions. NCI notes that previous abdominal surgery can rule out an abdominal flap. For very slim women with limited options, the LD flap may be recommended, and thigh or buttock flaps may suit women with small to medium breasts.

3. What is the size and shape of the breast, and is it one side or both?

Matching one reconstructed breast to a natural breast on the other side is a different task from rebuilding both, and NCI lists the size and shape of the breast among the factors that affect the choice. Surgery on the other breast to improve symmetry is often part of the plan.

4. What is your general health?

Obesity, diabetes and smoking may increase complication rates with both methods. The ACS notes that stopping smoking at least two months before surgery can help healing. If you take medication for diabetes or another long-term condition, any changes should be made only under the direction of the surgical team and the clinician who prescribed the medication. Suitable candidates are described as people without other medical conditions that may impair healing.

5. What does the cancer treatment plan look like?

The location of the tumour, the type of mastectomy, and whether chemotherapy or radiotherapy will follow all shape the timing and the method. Reconstruction is planned alongside the cancer treatment rather than before it, and the breast surgeon, oncologist and reconstructive surgeon need to agree on the sequence.

6. How much recovery time and how many operations can you accept?

An implant usually means a shorter first operation and a quicker initial recovery, but often two stages and further surgery over the years. A flap usually means one long operation and a longer recovery, and a second scar at the donor site. The figures in the next section show how wide this gap can be.

7. What matters most to you over the long term?

Some women want to avoid a long operation; others prefer to avoid a device that will need monitoring and possibly replacing. The American Society of Plastic Surgeons advises having realistic goals and making the decision for yourself rather than for anyone else.

How do recovery and the number of operations compare?

Published recovery times vary from one centre to another, so the figures below are reference points from named institutions, not a timetable for every patient.

Type of reconstruction	Operating time	Hospital stay	Recovery
Implant only	60–80 minutes	1–2 days	2–3 weeks
Abdominal flap	6–8 hours per side	5–7 days	6 weeks
Thigh or buttock flap	6–8 hours	5–7 days	4–6 weeks
Back (LD) flap with implant	4–6 hours	2–3 days	3–6 weeks

Source: MD Anderson Cancer Center patient booklet “Breast Reconstruction Options” (2010, reviewed October 2021).

An NHS patient leaflet from Cambridge University Hospitals gives longer estimates: a hospital stay of three to five days and four to six weeks of recovery after a single-stage implant reconstruction, five to seven days and six to eight weeks after an LD flap, and six months or longer before feeling fully recovered after a DIEP flap. The ACS states that most people return to normal activities within six to eight weeks, that recovery may be quicker with implants alone, that heavy lifting and strenuous activity should be avoided for about four to six weeks, and that full healing may take one to two years.

Reconstruction is also rarely a single operation. MD Anderson describes three steps that often take six months to a year: building the breast mound, then a waiting period of about three months before any revision or symmetry surgery, then a further two to three months before the nipple and areola are reconstructed. When a tissue expander is used, stretching the skin usually takes two to three months, and the expander is then left in place for another one to three months before the exchange.

What do studies show about complications and satisfaction?

The MROC study followed 2,343 patients who had reconstruction between 2012 and 2015. Within two years, 32.9% had at least one complication and 19.3% needed another operation because of a complication. The pattern differs depending on what is measured.

Technique	Any complication at 2 years	Reconstruction failure at 2 years
Expander, then implant	26.6%	7.1%
Implant in one stage	31.3%	7.1%
DIEP flap	47.4%	1.3%
Pedicled TRAM flap	41.2%	1.2%
Free TRAM flap	35.8%	2.1%
LD flap	39.4%	2.8%

Source: Bennett et al., JAMA Surgery 2018. Failure means loss of the implant or the flap; the failure rate was reported for implant techniques combined.

Flaps had more complications overall, while implants were more likely to fail outright. Neither method comes out ahead on both counts.

On satisfaction, the same consortium asked women to complete the BREAST-Q questionnaire two years after immediate reconstruction. After adjusting for differences between the groups, women with flaps scored about eight points higher on satisfaction with their breasts on the 0–100 scale, and also scored higher on psychosocial and sexual wellbeing. A long-term study from Memorial Sloan Kettering Cancer Center, covering 3,268 patients, found that satisfaction with the breasts remained higher after flap reconstruction at one, three, five and seven years, while scores after implant reconstruction stayed stable rather than falling.

These studies have limits. They were observational, not randomised, so the women who chose flaps differed from those who chose implants in age, health and preferences. They were carried out in North America, and only 60.5% of women in the satisfaction study returned the two-year questionnaire. The results describe groups of patients, and they may not apply directly to women in other countries or with different body types.

What long-term care does implant reconstruction need?

The US Food and Drug Administration (FDA) states that breast implants are not lifetime devices and that anyone with implants should assume they will need additional surgery at some point. This applies to implants used for reconstruction as well as for augmentation.

For silicone gel implants, the FDA recommends that people without symptoms have a first ultrasound or MRI five to six years after surgery and then every two to three years, with MRI for anyone who has symptoms or an unclear ultrasound result. This is a US recommendation; screening schedules elsewhere may differ, and your own surgeon will advise. Our articles on the FDA’s screening schedule for silicone implants and on silent rupture explain these checks in more detail.

Capsular contracture is graded from I to IV, and the FDA describes grades III and IV as severe and possibly requiring another operation. Radiotherapy makes it more likely. If it develops, our guide on how capsular contracture is treated compares the options.

Breast implant-associated anaplastic large cell lymphoma, or BIA-ALCL, is not breast cancer; it is a rare type of non-Hodgkin lymphoma that can develop in the scar tissue around an implant. The risk is higher with textured implants than with smooth ones, and the FDA considers the individual risk low. It does not recommend removing implants routinely in people who have no symptoms. Our article on textured and smooth implant surfaces explains the difference.

The FDA also notes that women who have had a mastectomy and implant reconstruction may not be able to breastfeed on that side. Flap reconstruction does not involve a device that needs monitoring, but the donor site carries its own long-term considerations, such as abdominal wall weakness after flaps that take muscle.

What about the nipple, the other breast and going flat?

The nipple and areola are usually rebuilt once the new breast has settled, either with a small surgical procedure or with a tattoo, including three-dimensional tattooing. Reconstructed nipples do not have feeling, and MD Anderson notes that many women are content to leave the reconstructed breast without a nipple. Areola tattoos can fade by as much as 40% over time and may need touching up. The Cambridge leaflet places tattooing about three to six months after surgery.

The other breast may be lifted, reduced or enlarged so that the two match. This is often done three to six months after the first operation.

Going flat is a choice in its own right. Not having reconstruction does not automatically mean a flat chest: some women wear an external breast form (prosthesis), while others choose aesthetic flat closure, an operation that shapes the chest wall to a smooth, flat contour. NCI notes that flat closure is also an option for women who have had their implants removed. Breastcancer.org cites a systematic review finding that women who chose reconstruction had no advantage in quality of life, body image or sexuality over those who chose to go flat, and it notes that this option is not offered to every patient. If you already have implants and are thinking about removal, our guide to having implants removed covers what the operation involves.

Are there considerations for women with smaller breasts or less donor tissue?

The evidence here is limited. Two small case series, one from Taiwan with 31 patients and one from Japan with 28, describe East Asian women as tending to have a lower BMI and smaller breasts than Western patients, and report that a thigh (PAP) flap provided enough volume in most of their patients when abdominal tissue was not suitable. The Taiwanese authors still regard the DIEP flap as their first choice, with the PAP flap as the alternative. A 2025 systematic review of 15 studies from Southeast Asia, including Vietnam, found that cultural, financial and geographical barriers affect whether women are offered reconstruction at all.

None of this means that slimmer women should choose implants or cannot have a flap. It means that the amount of available tissue, measured at an individual examination, carries more weight than general statements about any group.

Frequently asked questions

Conclusion

Implant and flap reconstruction solve the same problem in different ways. Implants usually mean a shorter first operation and quicker recovery, but a device that needs monitoring and a higher chance of failure, especially after radiotherapy. Flaps mean a longer operation and a second scar, with more complications at two years but higher reported satisfaction. Radiotherapy, available donor tissue, general health and your own priorities decide the balance. Not having reconstruction remains a reasonable option.

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References

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