Innervated breast reconstruction: a narrative review of neurotization techniques and outcomes.

Background and Objective: While significant sensation recovery improvements in neurotized breasts following reconstruction have been reported, sensation testing methods and surgical techniques have been widely variable. This narrative review aims to summarize available literature on current neurotization practices and sensory recovery outcomes in patients undergoing innervated breast reconstruction. Methods: A comprehensive literature search of PubMed Medline, Web of Science, and Embase was conducted to identify all studies reporting outcomes of neurotization in breast reconstruction surgeries. Data analyzed included operative times, neurotization techniques, sensory outcomes, and methods as well as patient reported outcomes. Key Content and Findings: Despite the heterogeneity of various studies reviewed, all forms of neurotization achieved earlier and superior sensory recovery throughout the reconstructed breast skin compared to non-innervated breasts. In absence of randomized controlled trials or high-quality comparative studies, further evidence is required to objectively confirm this technique offers better sensory recovery. Conclusions: Neurotization at the time of breast reconstruction may lead to improved sensation and patient reported outcomes delineating improved quality of life compared to non-innervated breasts. Future studies need to standardize the way that breast sensation is measured and determine pre-operative variables leading to expected changes in final sensation recovery to help manage surgical outcome expectations of both the surgeon and the patient.