Lipofilling to the Buttocks and Breasts in Local Anesthesia Using VASER and Expansion Vibration Lipofilling in a Closed-Loop System

Abstract

Large-volume fat transfer to the buttocks and breast has rapidly become popular. Lipofilling using syringes is tedious, time-consuming, and carries the risk of contamination. Most often, systemic anesthesia is being used. This study aims to evaluate the efficacy of large-volume lipofilling in local anesthesia. Local anesthesia was performed with 2 anesthetics: lidocaine and prilocaine. We performed vibration amplification of sound energy at resonance (VASER) and reciprocating power-assisted liposuction (PAL) for fat collection in a closed-loop system using a peristaltic pump. In a reverse pump setting, fat was then used for expansion vibration lipofilling. Pre- and postoperative data were collected. There were no major complications. Liposuction volumes up to 3.100 mL were extracted, and injection volumes ranged from 200 to 1600 mL. Mean operation time was 96 minutes. Satisfaction rate was high. Anesthesia was sufficient in all patients. Using a closed-loop system for fat extraction–purification and transfer is not only time- and cost-effective but also ideal for large-volume fat grafting. Recovery time is 1 to 2 days and satisfaction rate is high.