The authors of this paper show the results of a prospective controlled in vivo animal model study where the pinnae of 18 New Zealand white rabbits were subjected to electromechanical reshaping (EMR) and three months postoperative splinting. Six voltage and application time parameters were investigated; final angulation of the pinnae was measured and compared between groups, including one control group. Histologic analysis was also performed, including haematoxylin-eosin staining and cell viability assay. The results showed a persistent change in the shape of the pinnae which was charge dose related. Histological changes included both chondrocyte loss and neochondrogenesis along the new curvature lines. This paper brilliantly demonstrates the feasibility of treating auricular deformities with a simple, non-expensive, office-based procedure such as electromechanical reshaping. Further studies are required in order to adapt the technique to humans. However, the potential of the EMR applications, not only in otoplasty but also in other cartilage-reshaping surgeries, is huge. A new path has been opened. This is a paper that will appeal to every facial plastic surgeon.

In vivo needle-based electromechanical reshaping of pinnae New Zealand white rabbit model.
Yau AYY, Cyrus Manuel C, Syed F, et al.
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Eduardo Morera Serna

Hospital Universitario Son Espases, Palma de Mallorca, Spain.

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