Revolutionizing Gluteal Augmentation With the "Round Ass Technique": A Polymethylmethacrylate-Based Approach.

Polymethylmethacrylate (PMMA) gluteal augmentation has demonstrated favorable safety, efficacy, and cost-effectiveness when performed by experienced professionals. However, until 2023, available evidence remained limited by methodological bias and low levels of scientific rigor. A recent study has suggested that PMMA use for gluteal augmentation may be safe and effective, reporting a low rate of adverse events in a large retrospective patient sample. This technical report describes the "Round Ass Technique," a PMMA-based gluteal augmentation approach developed to correct substantial volume deficiencies and enhance aesthetic outcomes in patients dissatisfied with prior treatments. The procedure was performed on a 28-year-old female patient who received detailed counseling regarding potential risks, alternative interventions, and the permanent nature of PMMA before providing informed consent. Biossimetric® PMMA was injected according to a standardized protocol by qualified professionals. No intraoperative or postoperative complications were observed. Long-term follow-up exceeding two years demonstrated consistent patient satisfaction and confirmed the safety, durability, and aesthetic stability of the "Round Ass Technique." This is, to the best of our knowledge, the first standardized approach for gluteal augmentation using PMMA.