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Microsurgical breast reconstruction has continued to evolve to improve outcomes and minimize complications. Dual-plane, conjoined and stacked flaps represent one aspect of this evolution in an effort to improve tissue perfusion and flap volume. Dual-plane flaps combine the superficial and deep circulation in abdominally-based free flaps to augment perfusion. Conjoined flaps use additional pedicles to supply multiple perforasomes combined in a single flap. Stacked flaps utilize separate flaps on individual pedicles to increase volume at a single recipient site. Multiple donor sites, pedicle configurations and recipient vessel choices have been described, primarily focusing on using the cranial and caudal internal mammary system as well as intra-flap anastomoses. Though more technically demanding, dual-plane, stacked and conjoined flaps allow for improvement in flap perfusion and volume, and are important tools for optimizing results in autologous breast reconstruction.
Farajzadeh et al. (Wed,) studied this question.