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Safe Plastic Surgery of the Breast II: Saving Nipple Sensation.

Eplasty 2017
Background: Since its inception, reduction mammoplasty has matured considerably. Primary evolution in clinical research and practice initially focused on developing techniques to preserve tissue viability; breast parenchyma, skin, and nipple tissue that has expanded to include sensation and erectile function play a large role in the physical intimacy of women. Studies regarding primary innervation to the nipple are few and often contradictory. Our past anatomical study demonstrated that primary innervation to the nipple to come from the lateral branch of the fourth intercostal nerve. We propose an unsafe zone in which dissection during reduction mammoplasty ought to be avoided to preserve nipple sensation. Objective: To identify the trajectory of innervation to the nipple and translate these findings to the clinical setting so as to preserve nipple sensation . Methods: Eighty-six patients underwent reduction mammoplasty using the Wise pattern inferior pedicle (n = 72), vertical Hall-Findlay superomedial pedicle (n = 11), and Drape pattern inferior pedicle (n = 3). Aggressive dissection in the most superficial and deep tissue in the inferolateral quadrant of the breast was avoided. Results: All 86 patients reported having the same normal sensation to the breast at postoperative evaluation. Conclusions: The fourth intercostal nerve provides the major innervation to the nipple-areola complex. Avoiding dissection in inferolateral quadrant "unsafe zone" of the breast during reduction mammoplasty can reliably spare nipple sensation and maximize patient outcomes.

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