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Anatomical Considerations to Optimize Sensory Recovery in Breast Neurotization with Allograft.
Anatomical Considerations to Optimize Sensory Recovery in Breast Neurotization with Allograft. Plastic and reconstructive surgery. Global open Ducic, I., Yoon, J., Momeni, A., Ahcan, U. 2018; 6 (11): e1985Abstract
Breast numbness is a recognized problem following mastectomy and subsequent reconstruction. Contemporary literature acknowledges the positive role of breast neurotization, but it is characterized by a variety of technical approaches and substantial heterogeneity with respect to the degree of recovered sensibility that remains suboptimal in comparison with other sensory nerve reconstructions. This study's purpose was to provide an anatomical basis for observed inconsistencies and therein provide a principle that can be used to develop a technical approach that will optimize sensory recovery.Anatomical dissections on 6 fresh cadavers, that is, 12 hemi-abdominal flaps and 12 hemi-chest dissections, were performed. The technical aspects of harvesting the abdominal flap with a nerve target, that is, inclusion of a sensory nerve branch only, recipient nerves in the chest, and the applications of allograft for acquired nerve gap reconstruction were investigated.Abdominal flaps that include sensory-only intercostal nerve 10-12 segments and identification of recipient chest wall intercostal nerves 2-4 could be consistently performed. The dissection and extraction of the donor sensory nerve target allowed preservation of the motor rectus innervation. The acquired nerve gap was easily bridged by an interposing allograft, allowing free arch of rotation for flap inset, suitable for either single or dual neurotization.We provide a likely anatomical explanation for suboptimal sensory recovery after deep inferior epigastric perforator (DIEP) flap breast neurotization, as mixed intercostal autograft is prohibitive to maximal sensory recovery. Breast neurotization with allograft that bridges sensory donor intercostal nerves to sensory recipient intercostal nerves should anatomically optimize restoration of breast sensibility.
View details for DOI 10.1097/GOX.0000000000001985
View details for PubMedID 30881792
View details for PubMedCentralID PMC6414125