Form Stability of the Style 410 Anatomically Shaped Cohesive Silicone Gel–Filled Breast Implant in Subglandular Breast Augmentation Evaluated with Magnetic Resonance Imaging

BACKGROUND: In this study, the authors evaluated the form stability of the Style 410 anatomically shaped cohesive silicone gel-filled breast implant after subglandular implantation. METHODS: Nine women who had undergone bilateral subglandular breast augmentation using Style 410 implants were examined in the prone and supine positions with magnetic resonance imaging. RESULTS: In the supine position, the dimensions of the implants were similar to those specified by the manufacturer. In the prone position, there was a mean increase of 29.5 percent (range, 9.7 to 53.3 percent) in implant projection. All implants had their point of maximal projection positioned in the lower pole in both positions. CONCLUSIONS: The Style 410 implant is described as a form-stable, anatomically shaped, cohesive, silicone gel-filled implant. However, its shell and the degree of silicone gel cohesivity allow for a change in form depending on body posture. Compared with the supine position, there was a marked increase in implant projection in the prone position. The Style 410 implant keeps its lower pole fullness after subglandular implantation in both the supine and prone positions.