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Three Dimensional Analysis of Post-Operative Volumetric Distribution in Reduction Mammoplasty using a Superomedial Pedicle versus an Inferior Pedicle
Victor Zhu, BA1, Rachel Lentz, MD2, Tracey Sturrock, APRN1, Alexander Au, MD1, Stephanie Kwei, M.D.1.
1Yale University, New Haven, CT, USA, 2University of California San Francisco, San Francisco, CA, USA.

PURPOSE:
Reduction mammoplasty using an inferior pedicle technique is more commonly performed than a superomedial pedicle. This study uses 3D imaging to compare postoperative volumetric changes in the superomedial and inferior pedicle techniques.
METHODS:
Reduction mammoplasty was performed using either a superomedial pedicle or inferior pedicle, with a Wise-pattern skin incision. Postoperative 3D photographs were taken at 1-3 months and 6-12 months. Measurements included: total breast volume, percentage of superior volume distribution, percentage of medial volume distribution, and maximum projection of the breast.
RESULTS:
Fourteen patients were included in the study, with seven patients (14 breasts) in each cohort. There were no differences in age or weight of resected breast tissue, but a slightly higher BMI in the superomedial group (32.3 vs. 28.5, p=0.05) was noted. The percent superior pole volume increased for the superomedial pedicle cohort, from 54.8% at 1-3 months to 58.2% at 6-12 months (p=0.01) and decreased for the inferior pedicle cohort, from 59.7% to 55.1% (p<0.01). There was no significant difference in medial pole volume between the two cohorts in either the early (31.7% vs. 32.6%, p=0.72) or late (31.7% vs. 32.4%, p=0.75) periods. Maximum breast projection was not different between the two groups in the early period (6.34cm vs. 6.25cm, p=0.84) or late period (6.39cm vs. 5.82cm, p=0.20).
CONCLUSION:
Reduction mammoplasty using a superomedial pedicle maintains superior pole fullness over time whereas inferior pedicle reduction demonstrates redistribution of breast tissue from the superior pole to the inferior pole over time.


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