Autologous fat grafting provides moderate volume retention and improved patient-reported outcomes in postmastectomy reconstructionAutologous Fat Grafting Shows Promise for Breast Reconstruction Volume

Journal of plastic, reconstructive & aesthetic surgery : JPRAS Published July 1, 2026 Study authors: Ahn JeeHwan, Ahn Jinseo, Shiatis Andreas, Herron Jonathan PubMed ↗ DOI ↗ Editorial oversight: Dr. Sofia Müller, MD · Lifespan & Whole-Person Care

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Key Takeaway

Consider autologous fat grafting as a safe reconstruction adjunct providing moderate volume retention and improved patient satisfaction.

This meta-analysis synthesized data from 13 studies to evaluate the efficacy and safety of autologous fat grafting (AFG) for patients undergoing postmastectomy breast reconstruction. The primary outcome was volume retention, which showed a pooled mean of 47% in nonenriched studies (95% CI, 31.5-62.5). When excluding flap-augmented and water jet studies, the pooled retention rate was lower at 35.1% (95% CI, 25.9-44.3).

Regarding technique variations, enriched grafting techniques were associated with higher retention rates of 78-89%. However, these techniques were noted as too heterogeneous for pooling. Follow-up duration did not significantly impact volume retention (p=0.97). Patient-reported outcomes using the BREST-Q consistently favored AFG compared to other methods.

Safety data indicated that fat necrosis rates were numerically higher in AFG groups (RR 2.37), but this did not reach statistical significance (95% CI, 0.80-7.01). Other complications showed no significant differences across cohorts. The authors note the heterogeneity of enriched techniques as a limitation. Clinically, AFG is considered a safe adjunct for reconstruction with moderate volume retention and improved patient satisfaction.

How this fits prior evidence

This meta-analysis addresses a gap in surgical reconstruction outcomes by evaluating autologous fat grafting (AFG) specifically for postmastectomy patients. While previous coverage has addressed supportive care like acupuncture for fatigue and molecular markers such as PTTG1 or TKa, this study provides specific data on reconstructive techniques. It confirms that AFG is a viable option with moderate retention rates of 47% in nonenriched studies.

Researchers analyzed 13 studies involving patients undergoing breast reconstruction after a mastectomy. The study looked at autologous fat grafting (AFG), which involves using the patient's own fat to rebuild breast tissue. This method is often used to help restore shape and volume following surgery.

The findings showed that while general fat grafting had an average retention rate of 47 percent, specific enriched techniques showed much higher results between 78 and 89 percent. Patients who underwent this procedure reported positive outcomes regarding their quality of life. However, the study noted that some advanced techniques were too different from one another to be grouped together in a single calculation.

Regarding safety, there was a numerical increase in fat necrosis (the death of fat tissue), but this did not reach statistical significance. This means the risk was not proven to be significantly higher than other methods. Because these results come from a meta-analysis of various studies, patients should talk to their surgical team to determine which specific grafting techniques are best for their individual needs.

What this means for you:

Fat grafting can help maintain breast volume after surgery, with specialized techniques showing better retention rates.

Common questions

How much fat is typically retained after the procedure?

The study found that general autologous fat grafting had a pooled mean retention rate of 47 percent. However, when using specific enriched grafting techniques, the retention rates were significantly higher, ranging between 78 and 89 percent.

Is there a risk of fat necrosis during reconstruction?

The study noted a numerically higher rate of fat necrosis with an RR of 2.37. However, this result was not statistically significant, meaning the difference in risk compared to other methods was not proven by the data.

Does fat grafting improve patient satisfaction?

Yes, the study found that patient-reported outcomes using the BREST-Q survey consistently favored autologous fat grafting. Patients reported a positive impact on their breast-related quality of life after the procedure.

Study Details

Study typeMeta analysis

EvidenceLevel 1

Follow-up12.0 mo

PublishedJul 2026

PMID42202560

View Original Abstract ↓

BACKGROUND: Autologous fat grafting (AFG) is increasingly used in postmastectomy breast reconstruction to enhance contour, improve tissue quality, and address radiation-induced fibrosis. However, uncertainty remains regarding long-term volume retention, complication risks, and patient-reported outcomes, particularly in oncologic populations. METHODS: This Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant systematic review and meta-analysis (PROSPERO CRD420251132758) searched Medline, Embase, CENTRAL, and Scopus (2010-2025) for comparative studies evaluating complications or volume retention after AFG. Random-effects modeling assessed heterogeneity using I and τ. Sensitivity analyses excluded flap-augmented and water jet-assisted techniques. Enriched graft methods were synthesized narratively. RESULTS: Thirteen studies were included. Six nonenriched studies reported volume retention ranging from 26.0% to 74.8% at 3 to 12 months. The pooled mean retention was 47% [95% confidence interval (95% CI), 31.5-62.5; I=99%]. Excluding flap-augmented and water jet studies yielded a lower pooled retention rate of 35.1% (95% CI, 25.9-44.3). Follow-up time did not significantly lead to moderate retention (p=0.97). Enriched grafting techniques demonstrated higher retention (78-89%) but were too heterogeneous for pooling. Seven studies contributed to complication analysis. AFG was associated with a numerically higher rate of fat necrosis [risk ratio (RR), 2.37; 95% CI, 0.80-7.01], although this did not reach statistical significance. No significant differences were observed in any complication category. Complication rates were comparable in irradiated cohorts. Patient-reported outcomes (primarily the Breast-Related Quality of life Questionnaire) consistently favored AFG. CONCLUSION: AFG is a safe adjunct in postmastectomy breast reconstruction, demonstrating moderate volume retention without increased postoperative morbidity. Patient satisfaction consistently improves with AFG. Standardized volumetric assessment and technique specific stratification are needed to optimize outcomes.

Autologous fat grafting provides moderate volume retention and improved patient-reported outcomes in postmastectomy reconstructionAutologous Fat Grafting Shows Promise for Breast Reconstruction Volume

How this fits prior evidence

Common questions

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