INTRODUCTION: Several surgeons have their own formulas or protocols to select the volume and shape of breast implants. To determine the shape, we measured the distances between the upper edge of the breast and the papilla (A), and between the papilla and the inframammary fold (B). Based on these measurements, we propose an algorithm to select round or anatomical implants.
METHODS: Preoperative assessment was performed with the patients in the orthostatic position. The following distances were considered: 1) from the sternal notch to the papilla, to assess the need for supra-areolar skin excision; 2) breast base, to assess the volume of the implant; 3) distances A and B, to evaluate the shape of the implant. This algorithm was applied to 59 patients undergoing augmentation mammoplasty.
RESULTS: We used round implants in 27 patients; nine had a distance A = B, and 18 had B > A. We utilized anatomical implants in 32 patients. The volume of round implants ranged from 195 to 425 cc, whereas that of anatomical implants ranged from 185 and 315 cc. Regarding postoperative measurements of the patients who used round implants, 26 (96.3%) maintained the desired ratio with B > A or A = B. Among the patients with anatomical implants, 25 (78.1 %) showed proportional changes from A > B to A = B or B > A.
CONCLUSIONS: When the distance A is equal to or smaller than the distance B, we recommend round implants. When B < A, we recommend anatomical implants.
Keywords: Mammoplasty; Breast implants; Breast Implants/trends; Algorithms