# A Novel Fat-Augmented Omentum-Based Construct Is a Cost-Effective Alternative for Autologous Breast Reconstruction

## TL;DR

A new technique for breast reconstruction using omental fat is shown to be more cost-effective than traditional methods like implants or abdominal flaps.

## Contribution

The study introduces and evaluates the cost-effectiveness of the O-FAFF technique as a novel alternative for breast reconstruction.

## Key findings

- O-FAFF is cost-effective compared to implant-based reconstruction with an incremental cost-effectiveness ratio of USD 9712.64/B-QALY.
- O-FAFF is a dominant strategy over abdominal flap reconstruction, reducing costs and improving quality-adjusted life-years.
- The technique is a viable and cost-effective option for autologous breast reconstruction.

## Abstract

Background/Objectives: The omental fat-augmented free flap (O-FAFF) is a novel technique for autologous breast reconstruction in patients who cannot use or who elect not to use more traditional donor sites. While the clinical outcomes of O-FAFF have been well studied, associated costs and resource utilization have not yet been investigated. The O-FAFF technique involves the use of an acellular dermal matrix and a two-team approach for laparoscopic harvest of the omentum, thereby increasing surgical and materials costs. This study compares the longitudinal cost-effectiveness study of O-FAFF breast reconstruction compared to reconstruction using implants or abdominal donor sites (deep inferior epigastric artery flap or transverse rectus abdominis myocutaneous flap). Methods: This cost-effectiveness analysis compared O-FAFF to abdominal free flap and implant-based reconstruction in adults. Markov cohort modeling was used to study cost-effectiveness from the payer perspective. Results: Compared to implant-based reconstruction, the incremental cost of O-FAFF reconstruction was USD 9227 and the incremental gain in breast quality-adjusted life-year (B-QALY) was 0.95, resulting in an incremental cost-effectiveness ratio of USD 9712.64/B-QALY gained, which is well under the acceptable cost-effectiveness threshold of USD 50,000 per B-QALY. Compared to abdominal flap reconstruction, O-FAFF reconstruction was associated with an incremental decrease in direct costs of USD 1410.10 and an incremental gain in B-QALYs of 0.36 and was thus the dominant strategy. Conclusions: The O-FAFF breast reconstruction technique is a cost-effective alternative to more traditional methods of breast reconstruction, including abdominal free flap techniques and implant-based reconstruction. As such, the O-FAFF technique represents an important novel modality for primary autologous reconstruction.