• J Plast Reconstr Aesthet Surg · Oct 2015

    Porcine model for free-flap breast reconstruction training.

    • Frédéric Bodin, Michele Diana, Alexandre Koutsomanis, Emeric Robert, Jacques Marescaux, and Catherine Bruant-Rodier.
    • Department of Plastic Surgery, University Hospital of Strasbourg, Strasbourg, France. Electronic address: frederic.bodin@chru-strasbourg.fr.
    • J Plast Reconstr Aesthet Surg. 2015 Oct 1; 68 (10): 1402-9.

    BackgroundFree-flap breast reconstruction is a challenging surgical procedure with a steep learning curve. A reproducible large animal model could be relevant for free-flap harvesting and microsurgical anastomosis training. The aim of this study was to assess the feasibility of a porcine model for free-flap breast reconstruction.MethodsThree female pigs were placed under general anesthesia in order to study feasibility and estimate relevance for training. The deep inferior epigastric perforator (DIEP) flap, the transverse musculocutaneous gracilis (TMG) flap, and the superior gluteal artery perforator (SGAP) flap were harvested and anastomosed to the internal thoracic vessels. Differences were noted between pig and human anatomy, and the surgical procedure was adapted to build training models.ResultsUnder a more prominent anterior thoracic wall, the internal thoracic vessels were slightly deeper and larger than in human anatomy. The DIEP flap was never feasible in the porcine model. However, the superior epigastric artery perforator (SEAP) flap showed anatomical similarity with the human DIEP flap, and it proved to be suitable for an inverted training model. The porcine TMG flap harvesting was close to the human one, reproducing specific dissection and anastomotic difficulties. The SGAP flap was not a muscular perforator flap in pigs but a septocutaneous flap. Because of the thinness of the hypodermal fat, porcine flaps were not considered adequate training models for breast-mound shaping.ConclusionsDespite any anatomical variations, the pig has proven to be a suitable training model for free-flap harvesting and transfer in the field of breast reconstruction.Copyright © 2015 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

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