Reduction Mammaplasty: What Cup Size Will I Be?

Area of Science:

• Plastic Surgery
• Biomechanical Engineering
• Surgical Planning

Background:

• Accurate prediction of breast cup size post-reduction mammaplasty remains a significant challenge for plastic surgeons.
• Existing methods lack precision in determining the necessary tissue excision for desired aesthetic outcomes.

Purpose of the Study:

• To present a novel method for predicting the weight of breast tissue to be excised during reduction mammaplasty.
• To establish a correlation between initial breast measurements, desired cup size, and the required tissue weight for excision.

Main Methods:

• Breast tissue density was determined from surgical resection specimens.
• Standard bra cup volumes were measured using modeling clay and water displacement on a mannequin.
• Data were correlated to establish relationships between breast tissue volume, weight, and bra cup size.

Main Results:

• The average breast tissue density was calculated to be 0.98 g/ml (SD = 0.05).
• A consistent progression in bra cup volume was observed relative to both cup and band sizes.
• A predictive table was developed to estimate the weight of tissue for excision based on desired cup size changes.

Conclusions:

• The developed method aids plastic surgeons in accurately predicting tissue excision weight for achieving specific cup sizes in reduction mammaplasty.
• The findings provide a valuable reference for breast volume assessment, potentially assisting in planning for breast implant procedures.